Proposed Rule2025-20211

Enhanced Transparency and Public Accountability of the Supervisory Stress Test Models and Scenarios; Modifications to the Capital Planning and Stress Capital Buffer Requirement Rule, Enhanced Prudential Standards Rule, and Regulation LL

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Published
November 18, 2025

Issuing agencies

Federal Reserve System

Abstract

The Board is inviting public comment on the models used to conduct the Board's supervisory stress test, changes to those models to be implemented in the 2026 stress test, and proposed changes to enhance the transparency and public accountability of the Board's stress testing framework (the proposal). The proposal would amend the Policy Statement on the Scenario Design Framework for Stress Testing, including to implement guides for additional scenario variables, and the Stress Testing Policy Statement. The proposal would also codify an enhanced disclosure process under which the Board would annually publish comprehensive documentation on the stress test models, invite public comment on any material changes that the Board seeks to make to those models, and annually publish the stress test scenarios for comment. Lastly, the proposal would make changes to the FR Y-14A/Q/M to remove items that are no longer needed to conduct the supervisory stress test and to collect additional data to support the stress test models and improve risk capture.

Full Text

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[Federal Register Volume 90, Number 220 (Tuesday, November 18, 2025)]
[Proposed Rules]
[Pages 51856-51953]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-20211]



[[Page 51855]]

Vol. 90

Tuesday,

No. 220

November 18, 2025

Part III





Federal Reserve System





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12 CFR Parts 225, 238, and 252





Enhanced Transparency and Public Accountability of the Supervisory 
Stress Test Models and Scenarios; Modifications to the Capital Planning 
and Stress Capital Buffer Requirement Rule, Enhanced Prudential 
Standards Rule, and Regulation LL; Proposed Rule

Federal Register / Vol. 90, No. 220 / Tuesday, November 18, 2025 / 
Proposed Rules

[[Page 51856]]


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FEDERAL RESERVE SYSTEM

12 CFR Parts 225, 238, and 252

[Regulations Y, LL, and YY; Docket No. R-1873]
RIN 7100-AH05


Enhanced Transparency and Public Accountability of the 
Supervisory Stress Test Models and Scenarios; Modifications to the 
Capital Planning and Stress Capital Buffer Requirement Rule, Enhanced 
Prudential Standards Rule, and Regulation LL

AGENCY: Board of Governors of the Federal Reserve System (Board).

ACTION: Notice of Proposed Rulemaking.

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SUMMARY: The Board is inviting public comment on the models used to 
conduct the Board's supervisory stress test, changes to those models to 
be implemented in the 2026 stress test, and proposed changes to enhance 
the transparency and public accountability of the Board's stress 
testing framework (the proposal). The proposal would amend the Policy 
Statement on the Scenario Design Framework for Stress Testing, 
including to implement guides for additional scenario variables, and 
the Stress Testing Policy Statement. The proposal would also codify an 
enhanced disclosure process under which the Board would annually 
publish comprehensive documentation on the stress test models, invite 
public comment on any material changes that the Board seeks to make to 
those models, and annually publish the stress test scenarios for 
comment. Lastly, the proposal would make changes to the FR Y-14A/Q/M to 
remove items that are no longer needed to conduct the supervisory 
stress test and to collect additional data to support the stress test 
models and improve risk capture.

DATES: Comments must be received on or before January 22, 2026.

ADDRESSES: You may submit comments, identified by Docket No. R-1873 and 
RIN 7100-AH05, by any of the following methods:
    <bullet> Agency website: <a href="https://www.federalreserve.gov/apps/proposals/">https://www.federalreserve.gov/apps/proposals/</a>. Follow the instructions for submitting comments, including 
attachments. Preferred Method.
    <bullet> Mail: Benjamin W. McDonough, Deputy Secretary, Board of 
Governors of the Federal Reserve System, 20th Street and Constitution 
Avenue NW, Washington, DC 20551.
    <bullet> Hand Delivery/Courier: Same as mailing address.
    <bullet> Other Means: <a href="/cdn-cgi/l/email-protection#d3a3a6b1bfbab0b0bcbebeb6bda7a093b5a1b1fdb4bca5"><span class="__cf_email__" data-cfemail="dbabaeb9b7b2b8b8b4b6b6beb5afa89bbda9b9f5bcb4ad">[email&#160;protected]</span></a>. You must include the 
docket number in the subject line of the message.
    Comments received are subject to public disclosure. In general, 
comments received will be made available on the Board's website at 
<a href="https://www.federalreserve.gov/apps/proposals/">https://www.federalreserve.gov/apps/proposals/</a> without change and will 
not be modified to remove personal or business information including 
confidential, contact, or other identifying information. Comments 
should not include any information such as confidential information 
that would be not appropriate for public disclosure. Public comments 
may also be viewed electronically or in person in Room M-4365A, 2001 C 
St. NW, Washington, DC 20551, between 9 a.m. and 5 p.m. during Federal 
business weekdays.

FOR FURTHER INFORMATION CONTACT: Doriana Ruffino, Assistant Director, 
(202) 452-5235, Hillel Kipnis, Assistant Director, (202) 452-2924, John 
Simone, Lead Financial Institution Policy Analyst, (202) 245-4256, Ben 
Ranish, Principal Economist, (202) 973-6964, Nathan Palmer, Senior 
Economist, (202) 785-6089, and Theo Pistner, Financial Institution and 
Policy Analyst II, (202) 941-1825, Division of Supervision and 
Regulation; William Bassett, Senior Associate Director, (202) 736-5644, 
Bora Durdu, Deputy Associate Director, (202) 452-3755, Elena 
Afanasyeva, Principal Economist, (202) 736-1971, Levent Altinoglu, 
Principal Economist, (202) 721-4503, and Sam Jerow, Senior Financial 
Analyst, (202) 245-4299, Division of Financial Stability; Asad Kudiya, 
Associate General Counsel, (202) 360-6887, Julie Anthony, Senior 
Special Counsel, (202) 658-9400, Jonah Kind, Senior Counsel, (202) 452-
2045, Brian Kesten, Senior Counsel, (202) 843-4079, Katherine Di 
Lucido, Senior Attorney, (202) 253-5994, Legal Division. Board of 
Governors of the Federal Reserve System, 20th Street and Constitution 
Avenue NW, Washington, DC 20551. For users of TDD-TYY, please call 711 
from any telephone, anywhere in the United States.

SUPPLEMENTARY INFORMATION: 

Table of Contents

I. Introduction
II. Background on Stress Testing Framework, Stress Test Models, and 
Scenario Design Framework
    A. Stress Testing Framework
    B. Prior Supervisory Stress Disclosures and Policy Statements
    C. Supervisory Stress Test Modeling Framework
    D. Stress Test Models
    E. Summary of the Proposal
    F. Purpose of the Proposal
III. Overview of the Stress Test Modeling Framework
    A. Supervisory Stress Test Models
    B. Supervisory Stress Test Scenarios
    C. Data Used in Stress Testing
IV. Enhanced Disclosure Process
    A. Annual Disclosure of Models
    B. Model Changes
    C. Material Model Changes
    D. Annual Disclosure of Scenarios
    E. Stress Capital Buffer Requirement Reconsideration Process
V. Revisions to the Stress Testing Policy Statement
    A. Future Supervisory Stress Test Results Disclosures
    B. Other Revisions to the Stress Testing Policy Statement
VI. Other Revisions to the Stress Testing and Capital Plan Rules
    A. Stress Test Jump-Off Date Change
    B. Global Market Shock Date
    C. Amendment to the Dividend Add-On Component Calculation
VII. Revisions to the FR Y-14A/Q/M
VIII. Proposed Changes to the Stress Test Modeling Framework
    A. Proposed Changes to Stress Test Models
    B. Analysis of Proposed Model Changes
IX. Proposed Changes to the Scenario Design Policy Statement
    A. Changes to the Background and Overview and Scope Sections
    B. Changes to the Content of the Stress Test Scenarios Section
    C. Approach for Formulating Macroeconomic Assumptions in the 
Baseline Scenario
    D. Scenario Narrative: Refinement to the Recession Approach
    E. Changes to Construction of Certain Variables in the Severely 
Adverse Scenario
    F. Scenario Design Principles Derived From Stress Testing 
Literature: Severity, Credibility, and Procyclicality
    G. Description of Variable Guides in the Severely Adverse 
Scenario
    H. Global Market Shock
X. Economic Analysis
XI. Administrative Law Matters
    A. Paperwork Reduction Act Analysis
    B. Regulatory Flexibility Act Analysis
    C. Plain Language
    D. Providing Accountability Through Transparency Act of 2023

I. Introduction

    In December 2024, the Board announced that it would propose 
significant changes to improve the transparency of the supervisory 
stress test and reduce the volatility of resulting capital 
requirements.\1\ The Board noted it planned to propose changes to 
disclose and seek public comment on the models that determine the

[[Page 51857]]

hypothetical losses and revenue of banks under stress and ensure that 
the public can comment on the hypothetical scenarios used annually for 
the test, before the scenarios are finalized. With this proposal, the 
Board is inviting public comment on the comprehensive model 
documentation for the 2026 stress test, as well as proposed changes to 
the models relative to the 2025 stress test. The comprehensive model 
documentation is available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>. The Board is inviting comment 
on the proposed scenarios for the 2026 stress test through a separate 
notice.
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    \1\ See Board, Press Release (Dec. 23, 2024), <a href="https://www.federalreserve.gov/newsevents/pressreleases/bcreg20241223a.htm">https://www.federalreserve.gov/newsevents/pressreleases/bcreg20241223a.htm</a>. 
In February 2025, the Board reiterated its previous announcement 
that it would begin the public comment process on changes to the 
supervisory stress test. See Board, Press Release (Feb. 5, 2025), 
<a href="https://www.federalreserve.gov/newsevents/pressreleases/bcreg20250205a.htm">https://www.federalreserve.gov/newsevents/pressreleases/bcreg20250205a.htm</a>.
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    This proposal seeks to improve the transparency and public 
accountability of the supervisory stress test, while ensuring that the 
stress test remains an effective tool for understanding and assessing 
risk and retaining appropriate risk sensitivity and risk capture in 
capital requirements.
    The Board periodically reviews its regulations, including 
transparency efforts surrounding its regulations, to ensure they 
continue to achieve their goals in an effective and efficient manner. 
In addition to the changes discussed herein, the Board is also 
considering the effectiveness of its regulatory capital and capital 
planning requirements for large firms to ensure they remain cohesive 
and effective, maintain the resilience of the banking sector, and 
minimize any unnecessary burden. If appropriate, the Board will make 
changes to its rules through the public notice and comment process.
    Question 1: The Board seeks comment on all aspects of the proposal. 
What, if any, other elements of the supervisory stress test framework 
should the Board consider amending to improve the transparency, public 
accountability, and effectiveness of the supervisory stress test? For 
example, the Board could instead transliterate the models used to 
conduct the stress test and codify these transliterations in its 
regulations. What would be the advantages and disadvantages of this 
approach or other approaches the Board could consider?

II. Background on Stress Testing Framework, Stress Test Models, and 
Scenario Design Framework

A. Stress Testing Framework

    Congress enacted the Dodd-Frank Wall Street Reform and Consumer 
Protection Act (Dodd-Frank Act) in the wake of the 2007-09 financial 
crisis.\2\ Section 165 of the Dodd-Frank Act, as amended by section 401 
of the Economic Growth, Regulatory Relief, and Consumer Protection 
Act,\3\ requires the Board to establish enhanced prudential standards 
for nonbank financial companies supervised by the Board and bank 
holding companies with $250 billion or more in total consolidated 
assets.\4\ The purpose of these enhanced prudential standards is to 
prevent or mitigate risks to the financial stability of the United 
States that could arise from the material financial distress or 
failure, or ongoing activities, of large, interconnected financial 
institutions.
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    \2\ Dodd-Frank Wall Street Reform and Consumer Protection Act, 
Public Law 111-203, 124 Stat. 1376 (2010).
    \3\ Economic Growth, Regulatory Relief, and Consumer Protection 
Act, Public Law 115-174, 132 Stat. 1296 (2018).
    \4\ See 12 U.S.C. 5365(a). In addition, the International 
Lending Supervision Act of 1983 provides the Board with broad 
discretionary authority to set minimum capital levels for state 
member banks and certain affiliates of insured depository 
institutions, including holding companies, supervised by the Board. 
See 12 U.S.C. 3902(1); 3907(a); 3909(a). Under section 5(b) of the 
Bank Holding Company Act of 1956 (Bank Holding Company Act), the 
Board may issue such regulations and orders relating to capital 
requirements of bank holding companies as may be necessary for the 
Board to carry out the purposes of the Bank Holding Company Act. 12 
U.S.C. 1844(b). Foreign banking organizations with a U.S. branch, 
agency, or commercial lending company subsidiary are made subject by 
the International Banking Act of 1978 (International Banking Act) to 
the provisions of the Bank Holding Company Act in the same manner as 
bank holding companies, see 12 U.S.C. 3106; therefore, the Board is 
also authorized under section 5(b) of the Bank Holding Company Act 
to impose these requirements on those foreign banking organizations, 
including on their U.S. operations. Similarly, with regard to 
savings and loan holding companies, section 10(g) of the Home 
Owners' Loan Act authorizes the Board to issue such regulations and 
orders relating to capital requirements as the Board deems necessary 
and appropriate to carry out the purposes of the Home Owners' Loan 
Act. See 12 U.S.C. 1467a(g)(1).
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    Section 165(i)(1) of the Dodd-Frank Act requires the Board to 
conduct an annual supervisory stress test of nonbank financial 
companies supervised by the Board and bank holding companies with $250 
billion or more in total consolidated assets to evaluate whether the 
firm has the capital, on a total consolidated basis, necessary to 
absorb losses as a result of adverse economic conditions.\5\ Section 
401(e) of the Economic Growth, Regulatory Relief, and Consumer 
Protection Act requires the Board to conduct periodic stress tests for 
bank holding companies with total consolidated assets between $100 
billion and $250 billion.\6\ Section 165(i)(1) of the Dodd-Frank Act 
requires the Board to publish a summary of the supervisory stress test 
results.\7\ In 2012, the Board adopted a final rule implementing the 
stress test requirements established in the Dodd-Frank Act.\8\
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    \5\ 12 U.S.C. 5365(i)(1).
    \6\ 12 U.S.C. 5365 note (Supervisory Stress Test).
    \7\ 12 U.S.C. 5365(i)(1)(B)(v).
    \8\ See 77 FR 62378 (Oct. 12, 2012).
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    The Dodd-Frank Act also requires bank holding companies with $250 
billion or more in total consolidated assets, as well as nonbank 
financial companies supervised by the Board, to conduct company-run 
stress tests on a periodic basis.\9\ Under the Board's rules, firms 
subject to Category I, II, or III standards must conduct company-run 
stress tests.\10\ Company-run stress tests provide forward-looking 
information to supervisors to assist in their overall assessments of a 
firm's capital adequacy, help to better identify downside risks and the 
potential impact of adverse outcomes on the firm`s capital adequacy, 
and assist in achieving the financial stability goals of the Dodd-Frank 
Act. Further, the company-run stress tests help improve firms' stress 
testing practices with respect to their own internal assessments of 
capital adequacy and overall capital planning.
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    \9\ 12 U.S.C. 5365(i)(2).
    \10\ See 84 FR 59032 (Nov. 1, 2019); 12 CFR 238.142; 12 CFR 
252.53. State member banks with average total consolidated assets of 
greater than $250 billion must also conduct company-run stress 
tests. 12 CFR 252.13.
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    Each June, the Board publishes the results of its annual 
supervisory stress test, including each firm's projected capital 
ratios, pre-tax net income, losses, revenues, and expenses, under 
hypothetical, severely adverse economic and financial conditions.\11\ 
These disclosures provide the public with valuable information about 
each firm's financial condition and the ability of

[[Page 51858]]

each firm to absorb losses considering a stressful economic 
environment.
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    \11\ A firm subject to Category I through III standards must 
participate in the supervisory stress test every year, while a firm 
subject to Category IV standards is generally required to 
participate only every other year. See 12 CFR 217.2; 12 CFR 238.10; 
12 CFR 252.5; 84 FR 59032 (Nov. 1, 2019). In 2019, the Board adopted 
rules establishing four categories of prudential standards for U.S. 
banking organizations with total consolidated assets of $100 billion 
or more and foreign banking organizations with combined U.S. assets 
of $100 billion or more. See 12 CFR 217.2; 12 CFR 238.10; 12 CFR 
252.5; 84 FR 59032 (Nov. 1, 2019). Category I standards apply to 
U.S. GSIBs and their depository institution subsidiaries. Category 
II standards apply to banking organizations with at least $700 
billion in total consolidated assets or at least $75 billion in 
cross-jurisdictional activity and their depository institution 
subsidiaries. Category III standards apply to banking organizations 
with total consolidated assets of at least $250 billion or at least 
$75 billion in weighted short-term wholesale funding, nonbank 
assets, or off-balance sheet exposure and their depository 
institution subsidiaries. Category IV standards apply to banking 
organizations with total consolidated assets of at least $100 
billion that do not meet the thresholds for a higher category and 
their depository institution subsidiaries.
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    Following the 2007-09 financial crisis, the Board also made changes 
to its capital rule to address weaknesses observed during the 
crisis.\12\ These changes included the establishment of a minimum 
common equity tier 1 capital requirement and a fixed capital 
conservation buffer equal to 2.5 percent of risk-weighted assets.\13\ 
Large firms also became subject to a countercyclical capital buffer 
requirement, and the largest and most systemically important firms--
global systemically important bank holding companies, or GSIBs--became 
subject to an additional capital buffer based on a measure of their 
systemic risk, the GSIB surcharge.\14\ In 2020, the Board adopted the 
stress capital buffer requirement for certain firms.\15\ Because a 
firm's stress capital buffer requirement is informed by the firm's 
performance under the hypothetical economic conditions modeled by the 
supervisory stress test, each firm's stress capital buffer requirement 
is tailored to its risk profile.
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    \12\ See generally 12 CFR part 217.
    \13\ See 78 FR 62018 (Oct. 11, 2013); 12 CFR 217.11.
    \14\ See 80 FR 49082 (Aug. 14, 2015).
    \15\ In 2020, the Board finalized a rule to integrate 
supervisory stress test results into the capital framework, through 
the stress capital buffer requirement. See 85 FR 15576 (Mar. 18, 
2020). The stress capital buffer requirement is calculated as the 
difference between a firm's starting and lowest projected common 
equity tier 1 capital ratio under the severely adverse scenario in 
the supervisory stress test plus four quarters of planned common 
stock dividends, expressed as a percentage of risk-weighted assets. 
See 12 CFR 225.8(f); 12 CFR 238.170(f). The stress capital buffer 
requirement framework generally applies to firms with $100 billion 
or more in total consolidated assets.
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    Supervisory stress testing and stronger capital requirements have 
significantly improved the resilience of the U.S. banking system. Since 
2009, the common equity capital ratios of firms subject to the test 
have more than doubled, with common equity capital of such firms 
increasing by over $1 trillion.\16\ Since 2020, the supervisory stress 
test results have also informed a firm's stress capital buffer 
requirement. Greater transparency would allow firms to better 
understand the capital requirements associated with investment and 
expansion of different business lines and would facilitate more 
effective long-term capital planning. This, in turn, could enhance 
firms' ability to supply credit to households and businesses, 
ultimately supporting economic growth and financial stability.
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    \16\ Based on FR Y-9C (Consolidated Financial Statements for 
Holding Companies) filings.
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B. Prior Supervisory Stress Disclosures and Policy Statements

    In addition to the annual stress test results disclosure, the Board 
has historically published some information about the supervisory 
stress test scenarios and models.
Scenarios
    The Board's stress test rules provide that the Board will notify 
firms, by no later than February 15 of each year, of the scenarios that 
the Board will apply to conduct its annual supervisory stress test and 
that firms must use to conduct their company-run stress tests.\17\ The 
Board also provides a narrative description of the scenarios no later 
than February 15 of each calendar year.\18\
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    \17\ See 12 CFR 238.132(b); 12 CFR 238.143(b); 12 CFR 252.14(b); 
12 CFR 252.44(b); 12 CFR 252.54(b).
    \18\ See, e.g., Board, 2025 Stress Test Scenarios (Feb. 2025), 
<a href="https://www.federalreserve.gov/publications/files/2025-stress-test-scenarios-20250205.pdf">https://www.federalreserve.gov/publications/files/2025-stress-test-scenarios-20250205.pdf</a>.
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    In 2013, the Board increased the transparency of the scenarios by 
finalizing the Policy Statement on the Scenario Design Framework for 
Stress Testing (Scenario Design Policy Statement), which articulated 
the Board's approach to scenario design for the supervisory and 
company-run stress tests, outlining the characteristics of the stress 
test scenarios, and explaining the considerations and procedures that 
underlie the formulation of these scenarios.\19\ The Scenario Design 
Policy Statement also described the baseline and severely adverse 
scenarios, the Board's approach for developing these two macroeconomic 
scenarios, and the approach for developing any additional components of 
the stress test scenarios. The Scenario Design Policy Statement 
explained that the severely adverse scenario is designed to reflect 
conditions that have characterized post-war U.S. recessions (the 
recession approach). Historically, recessions have typically featured 
increases in the unemployment rate, contractions in aggregate incomes 
and economic activity, and declines in inflation and interest rates.
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    \19\ 12 CFR part 252, Appendix A.
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    In the 2013 Scenario Design Policy Statement, the Board explained 
that, in light of the typical co-movement of measures of economic 
activity during economic downturns, such as the unemployment rate and 
gross domestic product, the Board would first specify a path for the 
unemployment rate and then develops paths for other measures of 
activity broadly consistent with the course of the unemployment rate in 
developing the severely adverse scenario. The 2013 Scenario Design 
Policy Statement also stated that economic variables included in the 
scenarios may change over time, and that the Board may augment the 
recession approach with certain salient risks, which would involve 
incorporating features that address aspects of the current economic or 
financial market environment that represent higher-than-normal risks to 
the condition of the banking system.
    In 2019, the Board updated the Scenario Design Policy Statement, 
which increased the transparency and predictability of the scenarios by 
allowing for a smaller-than-usual increase in unemployment if the 
stress test were to occur during an economic downturn, a change that 
would pass through to reduced severity of other key scenario variables 
due to the deference given to historical correlations. The 2019 update 
also introduced a formula with countercyclical features to guide the 
evolution of the ratio of housing prices to disposable income in the 
scenario, which provided more predictability in the way that the stress 
test would treat business lines affected by changes in house prices. 
However, the Board believes that the design of scenarios could be made 
more transparent and predictable by providing additional guides for 
certain macroeconomic variables, and by disclosing additional detailed 
information on the methodology used to create the global market shock 
component of the severely adverse scenario, as described below.
a. Trading and Counterparty Components
    For a subset of firms, the severely adverse scenario also includes 
two additional components: the global market shock component and the 
largest counterparty default component.\20\ The global market shock 
component is a set of hypothetical shocks to a large set of risk 
factors reflecting general market distress and heightened uncertainty. 
A firm with significant trading activity must consider the global 
market shock component as part of its severely adverse scenario and 
recognize associated losses in the first quarter of the projection 
horizon.\21\ The global

[[Page 51859]]

market shock component is applied to asset positions held by the firms 
on a given as-of date.\22\ In addition, for certain large and highly 
interconnected firms, the same global market shock component is applied 
to counterparty exposures under the largest counterparty default 
component.\23\ The largest counterparty default component is intended 
to assess the potential losses and capital impact associated with the 
default of the largest counterparty of each applicable firm, and the 
as-of date aligns with that of the global market shock component.
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    \20\ See 12 CFR 238.143(b)(2)(i); 12 CFR 252.54(b)(2)(i). For 
more information on the scenarios and components, see Board, 2025 
Stress Test Scenarios (Feb. 2025), <a href="https://www.federalreserve.gov/publications/files/2025-stress-test-scenarios-20250205.pdf">https://www.federalreserve.gov/publications/files/2025-stress-test-scenarios-20250205.pdf</a>.
    \21\ The global market shock component applies to firms subject 
to Category I, II, and III standards that have aggregate trading 
assets and liabilities of $50 billion or more, or trading assets and 
liabilities equal to or greater than 10 percent of total 
consolidated assets. See 12 CFR 238.143(b)(2)(i); 12 CFR 
252.54(b)(2)(i).
    \22\ Under the Board's current stress test rules, the global 
market shock as-of date must occur between October 1 and March 1. 
See 12 CFR 238.143(b)(2)(i); 12 CFR 252.14(b)(2)(i); 12 CFR 
252.54(b)(2)(i).
    \23\ The largest counterparty default component generally 
applies to all firms subject to the global market shock component, 
as well as firms with substantial processing and custodial 
operations.
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    The design and specification of the global market shock component 
differs from the design and specification of the severely adverse 
scenario in several respects. First, in alignment with U.S. generally 
accepted accounting principles (U.S. GAAP), profits and losses from 
trading and counterparty credit positions are measured in mark-to-
market accounting terms in the global market shock, while revenues and 
losses from traditional banking activities, as generated under 
macroeconomic scenarios, are generally measured using the accrual 
accounting method. Second, the timing of loss recognition differs 
between the global market shock and the severely adverse macroeconomic 
scenario. The global market shock affects the mark-to-market value of 
trading positions and counterparty credit losses in the first quarter 
of the severely adverse scenario. This timing is based on an 
observation that market dislocations can happen rapidly and 
unpredictably at any time under stressed conditions. In addition, the 
severely adverse scenario is applied as of December 31 of each year 
(the jump-off date), whereas the global market shock as-of date changes 
every year (within the window specified in the Board's stress test 
rules) and does not necessarily coincide with the year-end. This timing 
is also based on a scenario assumption that market dislocations can 
happen rapidly and unpredictably at any time during the scenario 
horizon. Recognizing the global market shock in the first quarter helps 
ensure that potential losses from trading and counterparty exposures 
are incorporated into firms' capital ratios in each quarter of the 
severely adverse scenario.
Models
    Prior to 2019, the annual stress test results disclosure document 
contained an appendix describing the Board's supervisory stress test 
models.\24\ In 2019, the Board increased the transparency of the 
supervisory stress test models by finalizing the Stress Testing Policy 
Statement \25\ and the Enhanced Disclosure of the Models Used in the 
Federal Reserve's Supervisory Stress Test (Enhanced Model 
Disclosure).\26\ The Stress Testing Policy Statement describes the 
Board's policies and procedures that guide the development, 
implementation, and validation of the models.\27\ The Stress Testing 
Policy Statement also describes the Board's principles for stress test 
model design, namely that the system of models used in the supervisory 
stress test should result in projections that are (1) independent of 
firm projections; (2) forward-looking in that they project future 
losses and revenue; (3) consistent and comparable across firms; (4) 
generated from simple approaches, where appropriate; (5) robust and 
stable; (6) conservative; and (7) able to capture the effect of severe 
economic stress. The Board has developed stress test models in 
accordance with these principles, which are the foundation for the 
stress test modeling decisions described in the comprehensive 
documentation of the supervisory stress test models that the Board is 
publishing in conjunction with this proposal.
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    \24\ See, e.g., Board, 2018 Supervisory Stress Test Results 
(Jun. 2018), <a href="https://www.federalreserve.gov/publications/files/2018-dfast-methodology-results-20180621.pdf">https://www.federalreserve.gov/publications/files/2018-dfast-methodology-results-20180621.pdf</a>.
    \25\ See 84 FR 6664 (Feb. 28, 2019).
    \26\ See 84 FR 6784 (Feb. 28, 2019).
    \27\ See 12 CFR 252, Appendix B.
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    The Enhanced Model Disclosure supplemented prior public 
descriptions of the stress test models by providing some information 
about their structure and by including a list of key variables that 
influence the results of each model.\28\ However, the Board believes 
more detailed information, beyond what is in the current Enhanced Model 
Disclosure, would improve the ability of firms to accurately assess how 
changes in their business activities might impact their supervisory 
stress test results and, relatedly, their stress capital buffer 
requirements and overall capital requirements.
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    \28\ See, e.g., Board, 2025 Supervisory Stress Test Methodology 
(Jun. 2025), <a href="https://www.federalreserve.gov/publications/files/2025-june-supervisory-stress-test-methodology.pdf">https://www.federalreserve.gov/publications/files/2025-june-supervisory-stress-test-methodology.pdf</a>.
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C. Supervisory Stress Test Modeling Framework

    The Board's stress test models take macroeconomic variables from 
the Board's severely adverse scenario and firm data as inputs to 
produce each firm's projected capital ratios over a nine-quarter 
horizon. The projected common equity tier 1 capital ratio is used to 
inform each firm's stress capital buffer requirement, which becomes 
part of a firm's capital conservation buffer.
    The stress test models are intended to capture how a firm's 
regulatory capital would be affected by the macroeconomic and financial 
conditions described in the stress test scenarios, given the 
characteristics of the firm's business model and balance sheet 
composition. The Board uses a variety of statistical modeling 
techniques to produce the stress test results, including multivariate 
regression, which uses relationships in historical data to produce 
projections of a variable (such as a loss given default). These models 
are represented by a set of formulas and coefficients that produce the 
projections.
    The Board estimates the effect of the severely adverse scenario on 
the regulatory capital ratios of firms by projecting revenues, 
expenses, and losses for each firm over a nine-quarter projection 
horizon (projection horizon). The projection horizon spans nine 
quarters to ensure that the firms can continue to provide credit and 
serve as financial intermediaries despite several quarters of adverse 
economic conditions, as well as to promote the forward-looking nature 
of capital planning by firms.
    Projected net income, adjusted for the effect of taxes, is combined 
with assumptions regarding capital actions and other changes to 
regulatory capital to produce post-stress capital ratios. The Board's 
approach to modeling supervisory stress test results, including the 
calculation of post-stress capital ratios, is generally in alignment 
with U.S. GAAP and the regulatory capital framework.\29\ However, the 
stress test models may deviate from U.S. GAAP and the regulatory 
capital framework, as circumstances warrant.
---------------------------------------------------------------------------

    \29\ See generally 12 CFR part 217.
---------------------------------------------------------------------------

    The Board established the Stress Testing Policy Statement modeling 
principles to ensure that the models are well suited for their purpose 
in the regulatory framework. In some cases, the Board's adherence to 
the principles limits modeling choices and results in certain common 
limitations across similarly constructed component

[[Page 51860]]

models. For instance, consistent with the principles of independence, 
consistency and comparability, and simplicity, models are not designed 
to capture all firm-specific nuances, future strategic initiatives, or 
planned capital actions. Additionally, models may be limited by their 
reliance on historic relationships and by the nature of the data 
captured in firms' regulatory reports. Detailed assumptions and 
limitations for the models are discussed in the comprehensive 
documentation, which is available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>.
    Under the Stress Testing Policy Statement, the Board's projections 
also assume that a firm's balance sheet remains unchanged throughout 
the projection horizon.\30\ This assumption seeks to help ensure that a 
firm cannot ``shrink to health'' and that it remains sufficiently 
capitalized to accommodate credit demand in a severe downturn.
---------------------------------------------------------------------------

    \30\ See 12 CFR 252, Appendix B, section 2.7.
---------------------------------------------------------------------------

D. Stress Test Models

    The Board's stress test models comprise twenty-one component models 
that, when aggregated, produce projected regulatory capital ratios for 
each firm (see Table 1 below). The models can be grouped into four 
categories: credit risk, market risk, net revenue, and aggregation. 
Credit risk models capture losses associated with retail and wholesale 
loans that are held at amortized cost. Market risk models capture 
losses associated with trading and counterparty exposures, securities, 
and other assets held at fair value. Net revenue models capture income 
and expenses, including those related to operational risk, earned or 
incurred by a firm. Positive pre-provision net revenue offsets credit 
and market risk losses in the calculation of a firm's pre-tax net 
income. Aggregation models calculate a firm's pre-tax net income, which 
is then adjusted for other elements such as taxes and regulatory 
capital deductions to arrive at the projection of a firm's regulatory 
capital, which is used to calculate a firm's projected capital ratios. 
Additional detail about these component models is provided in Section 
III.A of this Supplementary Information and the comprehensive model 
documentation available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>.\31\
---------------------------------------------------------------------------

    \31\ See also Board, 2025 Supervisory Stress Test Methodology 
(Jun. 2025), <a href="https://www.federalreserve.gov/publications/files/2025-june-supervisory-stress-test-methodology.pdf">https://www.federalreserve.gov/publications/files/2025-june-supervisory-stress-test-methodology.pdf</a>.

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[GRAPHIC] [TIFF OMITTED] TP18NO25.036

E. Summary of the Proposal
---------------------------------------------------------------------------

    \32\ The Trading Issuer Default Loss Model, Trading Profit and 
Loss Model, Credit Valuation Adjustment Model, and Largest 
Counterparty Default Model apply only to a subset of firms. See 
Section II.B of this Supplementary Information.
---------------------------------------------------------------------------

    The Board is publishing comprehensive documentation on the stress 
test models on the Board's website, at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>. This model documentation 
contains information on the models that together produce the results of 
the supervisory stress test. The model documentation includes the 
equations, variables, and coefficients used in each model (where 
applicable); assumptions and limitations of each model; rationales for 
modeling decisions; and discussions of alternative models. Section 
VIII.A of this Supplementary Information summarizes changes to the 
models, relative to the 2025 stress test, that the Board plans to 
implement in the 2026 stress test cycle; section VIII.B of this 
Supplementary Information contains an analysis of the potential effects 
of these proposed model changes. Detailed documentation on these 
changes is also provided on the Board's website, at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>. As 
part of this proposal, the Board is inviting public comment on the 
stress test models and these changes.
    In addition, the Board is proposing to codify an enhanced 
disclosure process that would build on the previous efforts that the 
Board has made to increase the transparency and public accountability 
of the supervisory stress test. Under this enhanced disclosure process, 
the Board would annually publish comprehensive model documentation on 
the stress test models, invite public comment on any material changes 
that the Board seeks to make to those models, and annually publish the 
stress test scenarios for comment. The Board would also commit to 
responding to substantive public comments on any material model changes 
before implementing them. The proposal would revise the Stress Testing 
Policy Statement to align with this enhanced disclosure process, as 
well as to amend the Board's general policy related to disclosing 
additional information directly to a firm about that firm's supervisory 
stress test results. To accommodate the annual comment process on the 
scenarios, the proposal would shift the jump-off date of the 
supervisory and company-run stress tests from December 31 to September 
30.
    Additionally, this proposal would amend the Scenario Design Policy 
Statement in several ways. The Board would include in the Scenario 
Design Policy Statement detailed descriptions of additional guides that 
are used to inform the Board's choice of the values of the scenario 
variables along their scenario paths. The guides are designed to 
balance the competing objectives of predictability and transparency, on 
the one hand, with the severity and relevance of the macroeconomic and 
financial market scenarios, on the other hand. Most of the proposed 
guides also incorporate features similar to the range of options in the 
existing unemployment guide or the automatic adjustment of the house 
price path to current housing market conditions in the existing house 
price guide. This approach would allow the Board to continue to adjust 
the severity of those variables as necessary to avoid inducing greater 
procyclicality in the financial system and macroeconomy.
    Similarly, the Board is proposing to incorporate additional 
information into the Scenario Design Policy Statement about the 
framework used to create the global market shock component of the 
severely adverse scenario. This information includes, but is not 
limited to, details on the logic underlying the severity of the shocks 
and a description of the processes used to generate the shock values. 
The Board is also proposing to update the global market shock 
methodology to simplify the scenario and better align certain elements 
of the global market shock with the nature of an ``instantaneous'' 
shock. The proposal would also make revisions to the stress test rules 
to improve the risk capture of the supervisory stress test by widening 
the

[[Page 51863]]

as-of date window for the global market shock.
    Finally, the proposal would make changes to the FR Y-14A/Q/M 
reports to remove items and documentation requirements that are no 
longer needed to conduct the supervisory stress test, as well as to 
collect additional data to improve risk capture.

F. Purpose of the Proposal

    The purpose of this proposal is to provide the public with more 
information about the stress test models and scenarios and to help 
ensure that the public has an opportunity to comment on the models and 
scenarios. While the Board has increased the transparency of the stress 
test models over time, disclosing additional information about the 
stress test models and their underlying methodologies will further 
increase transparency and improve public accountability.
    Publishing detailed descriptions of the stress test models for 
comment, as well as committing to future enhanced disclosures, has 
benefits. First, the increase in transparency would increase public 
accountability and instill confidence in the fairness of the 
supervisory stress tests. Second, the disclosure process would create a 
new mechanism for obtaining feedback from the public, including 
academics, financial analysts, and firms, on the design and 
specifications of the models, which should lead to model improvements. 
Third, a firm would have a better sense of how its risk profile would 
factor into its stress capital buffer requirement, which would reduce 
the likelihood of unanticipated stress test results and allow for 
better capital and business planning by firms. Finally, the public 
disclosure of additional information about supervisory stress tests 
should strengthen market discipline, because investors, counterparties, 
and rating agencies would be able to better assess a firm's risk 
profile.\33\ The costs and benefits of this proposal are described more 
thoroughly in Section X of this Supplementary Information.
---------------------------------------------------------------------------

    \33\ See, e.g., N. Gambetta, M.A. Garc[iacute]a-Benau, & A. 
Zorio-Grima, Stress test impact and bank risk profile: Evidence from 
macro stress testing in Europe, 61 Intl. Rev. of Econ. & Fin 347-54 
(2019); I. Goldstein & Y. Leitner, ``Stress test disclosure: theory, 
practice, and new perspectives,'' Handbook of Financial Stress 
Testing 208-223 (2022).
---------------------------------------------------------------------------

    With respect to the proposed amendments to the Scenario Design 
Policy Statement, this proposal also builds on the contents of the 
current Scenario Design Policy Statement and would amend it to provide 
additional transparency, public accountability, and predictability in 
the variable paths. The changes would support the Board in developing 
scenarios, inviting comment on those scenarios, incorporating input 
from commenters, and maintaining the current schedule for release of 
the final scenarios. Despite the increased predictability in the 
scenarios, the new framework would remain flexible enough to suitably 
assess whether firms can maintain an adequate amount of loss-absorbing 
capital to stay above minimum regulatory requirements and continue 
financial intermediation during periods of stress, as well as adjust 
features that might add to existing procyclicality in the financial 
system, as appropriate. In practice, the scenarios resulting from the 
revised framework are expected to remain consistent with the current 
Scenario Design Policy Statement and should not result, on average over 
a typical business cycle, in materially different scenarios than would 
have been designed previously.
    Additionally, the proposal would simplify the design of the global 
market shock component and incorporate additional information on the 
development process into the Scenario Design Policy Statement, which 
outlines the Board's approaches to designing market shocks, including 
important considerations for scenario design, possible approaches to 
developing scenarios, and a development strategy for implementing the 
preferred approach. Taken together, these changes would improve 
transparency, public accountability, and predictability of the 
supervisory scenarios, while ensuring the supervisory stress test's 
ability to capture changes in the risks in the financial industry over 
time.

III. Overview of the Stress Test Modeling Framework

    As summarized in Section II.D of this Supplementary Information, 
the Board estimates the effect of the scenarios on the regulatory 
capital ratios of firms participating in the stress test by projecting 
net income and other components of regulatory capital for each firm 
over a nine-quarter projection horizon. To do so, the Board uses 
twenty-one component models, the macroeconomic variables from the 
Board's severely adverse scenario, and firm data. This section provides 
an overview of the component models the Board used to run the 2025 
supervisory stress test. See Table 1 in Section II.D of this 
Supplementary Information.

A. Supervisory Stress Test Models

    The Board calculates projected pre-tax net income by combining 
projections of pre-provision net revenue,\34\ provisions for credit 
losses,\35\ and other gains or losses.\36\ Each component of pre-tax 
net income is described below.
---------------------------------------------------------------------------

    \34\ Pre-provision net revenue includes, among other items, 
income from mortgage servicing rights, losses from operational risk 
events, and other real estate owned costs.
    \35\ For firms that have adopted Accounting Standards Update 
(ASU) 2016-13, the Federal Reserve incorporates its projection of 
expected credit losses on securities in the allowance for credit 
losses, in accordance with Financial Accounting Standards Board 
(FASB), Financial Instruments--Credit Losses (Topic 326). See FASB 
ASU No. 2016-13, ``Financial Instruments--Credit Losses (Topic 326): 
Measurement of Credit Losses on Financial Instruments.''
    \36\ Other gains or losses include losses on held-for-sale 
loans, loans measured under the fair-value option, and loan hedges.
---------------------------------------------------------------------------

Pre-Provision Net Revenue
    Pre-provision net revenue is defined as net interest income 
(interest income minus interest expense) plus noninterest income minus 
noninterest expense. Consistent with U.S. GAAP, these projections 
include projected losses due to operational risk events and expenses 
related to the disposition of other real estate owned.\37\ The Board 
projects most components of pre-provision net revenue using models that 
relate specific revenue and non-provision-related expenses to the 
characteristics of firms and to macroeconomic variables. These include 
eight components of interest income, seven components of interest 
expense, six components of noninterest income, and three components of 
noninterest expense. The Board separately projects losses from 
operational risk and other real estate owned expenses. Operational risk 
is defined as ``the risk of loss resulting from inadequate or failed 
internal processes, people and systems or from external events.'' \38\ 
Other real estate owned expenses are expenses related to the 
disposition of real estate owned properties and stem from losses on 
first-lien mortgages.
---------------------------------------------------------------------------

    \37\ However, pre-provision net revenue projections do not 
include debt valuation adjustments, which are not included in 
regulatory capital.
    \38\ 12 CFR 217.101 ``Operational risk.''
---------------------------------------------------------------------------

Loan Losses and Provisions on Loans Measured at Amortized Cost
    The Board typically projects losses using one of two modeling 
approaches: the expected-loss approach or the net charge-off approach. 
Generally, under the expected loss approach, expected losses are 
estimated by projecting the probability of default, loss given default, 
and exposure at default for each quarter of the projection horizon. 
Expected losses in each quarter are the product of these three 
components. Under the net

[[Page 51864]]

charge-off approach, losses are projected using historical behavior of 
net charge-offs as a function of macroeconomic and financial market 
conditions and loan portfolio characteristics.\39\
---------------------------------------------------------------------------

    \39\ Entire loans or portions of loans may be charged off if a 
firm believes that the loan will not be repaid. If an amount that is 
charged off is ultimately repaid by the borrower, then that repaid 
amount is added to a firm's income as a recovery. Net charge-offs 
are total charge-offs less any recoveries.
---------------------------------------------------------------------------

    The Board estimates losses for loans measured at amortized cost 
separately for different categories of loans, based on the type of 
obligor, collateral, and loan structure. The individual loan types 
modeled can broadly be divided into (1) retail loans, including various 
types of residential mortgages, credit cards, student loans, auto 
loans, small business loans, and other consumer loans; and (2) 
wholesale loans, such as commercial and industrial loans and commercial 
real estate loans. For most loan types, losses in quarter t are 
estimated as the product of the projected probability of default in 
quarter t, the loss given default in quarter t, and exposure at default 
in quarter t.
    The probability of default component measures the likelihood that a 
borrower enters default status during a given quarter t. The other two 
components capture the lender's net loss on the loan if the borrower 
enters default. The loss given default component measures the 
percentage of the loan balance that the lender will not be able to 
recover after the borrower enters default, and the exposure at default 
component measures the total expected outstanding loan balance at the 
time of default.\40\
---------------------------------------------------------------------------

    \40\ When applicable, loan loss models may factor in shared-loss 
agreements with the Federal Deposit Insurance Corporation.
---------------------------------------------------------------------------

    The Board's definition of default, for stress test modeling 
purposes, may vary for different types of loans and may differ from 
general industry definitions or classifications. The Board generally 
models probability of default as a function of loan characteristics and 
economic conditions. The Board typically models loss given default 
based on historical data, and modeling approaches vary for different 
types of loans. For certain loan types, the Board models loss given 
default as a function of borrower, collateral, or loan characteristics 
and the macroeconomic variables from the supervisory scenarios. For 
other loan types, the Board assumes loss given default is a fixed 
percentage of the loan balance for all loans in a category. The 
approach to modeling exposure at default also varies by loan type and 
depends on whether the loan is a term loan or a line of credit.
    For certain retail loan categories, projections capture the 
historical behavior of net charge-offs as a function of macroeconomic 
and financial market conditions and loan portfolio characteristics. The 
Board then uses these stress test models to project future charge-offs 
consistent with the evolution of macroeconomic conditions under the 
severely adverse scenario. To project losses, the projected net charge-
off rate is applied to projected loan balances.
    Losses on loans are then projected to flow into net income through 
provisions for loan and lease losses (for simplicity, provisions for 
loan losses). Provisions for loan losses reflect funds set aside to 
cover loan losses that a firm expects to incur in a predetermined 
future window. Provisions for loan losses feed into the allowance for 
loan losses, which serves as a contra asset on a firm's balance sheet. 
The charged-off amount of a loan reduces the outstanding balance of the 
loan while also reducing the allowance for loan losses (that is, 
charge-offs do not reduce a firm's total assets). Generally, provisions 
for loan losses for each projected quarter in the supervisory stress 
test equal projected losses on loans for the quarter plus the change in 
the allowance for loan losses needed to cover the subsequent four 
quarters of expected loan losses. This calculation incorporates the 
allowance for loan losses established by the firm as of the jump-off 
date of the stress test exercise.
Current Expected Credit Losses Framework
    On January 1, 2020, most large and mid-sized U.S. banks adopted the 
Current Expected Credit Losses (CECL) standard for calculating 
allowances.\41\ CECL superseded the incurred loss accounting standard, 
which was a backward-looking measure that enabled firms to calculate 
allowances based on historical loss data and current economic 
conditions. CECL, by contrast, is a forward-looking measure that 
requires firms to estimate lifetime losses based on reasonable 
estimates of future economic conditions. In October 2024, the Board 
announced that it would continue to evaluate future enhancements to the 
supervisory stress test approach for the incorporation of CECL.\42\
---------------------------------------------------------------------------

    \41\ See FASB ASU No. 2016-13, ``Financial Instruments--Credit 
Losses (Topic 326): Measurement of Credit Losses on Financial 
Instruments.''
    \42\ See Q(DST0030) (Oct. 9, 2024) and Q(DST0029) (Dec. 15, 
2023), <a href="https://www.federalreserve.gov/publications/ccar-qas/comprehensive-capital-analysis-and-review-questions-and-answers.htm">https://www.federalreserve.gov/publications/ccar-qas/comprehensive-capital-analysis-and-review-questions-and-answers.htm</a>.
---------------------------------------------------------------------------

    The Board is not proposing to implement CECL into the supervisory 
stress testing framework as a part of this proposal. The allowance 
calculation framework currently used in the supervisory stress test is 
already forward-looking: it projects loan loss provisions four quarters 
ahead. This approach aligns with the Board's modeling principle of 
simplicity as it requires fewer assumptions than would be required to 
determine provisions under CECL. In addition, in aggregate, the 
cumulative loan loss provisions under the supervisory severely adverse 
scenario are similar to provision projections submitted by the firms 
that have adopted CECL. Should the Board decide to implement CECL into 
the supervisory stress testing framework, it would seek public comment 
prior to implementation, as it would likely be a material model change 
as defined in this proposal.
    Question 2: What factors should the Board consider when determining 
whether to implement CECL into the supervisory stress testing framework 
and why?
    Question 3: What would be the advantages and disadvantages of 
incorporating CECL into the supervisory stress testing framework?
Losses on Loans Measured on a Fair Value Basis
    Certain loans are accounted for on a fair value basis instead of on 
an amortized cost basis. If a loan is accounted for using the fair 
value option, it is marked to market, and the accounting value of the 
loan changes as a function of changes in market risk factors and 
fundamentals. Similarly, loans that are held for sale are accounted for 
at the lower of cost or market value. The stress test models for these 
asset classes project gains and losses over the nine-quarter projection 
horizon, net of any hedges, using the scenario-specific path of 
interest rates and credit spreads. The Board uses different models to 
estimate gains and losses on wholesale loans and retail loans that are 
accounted for on a fair value basis since these loans have different 
risk characteristics. However, these models all generally project gains 
and losses over the nine-quarter projection horizon, net of hedges, by 
applying the scenario-specific interest rate and credit spread shocks 
to loan yields.
Losses on Securities
    A firm's balance sheet typically contains holdings of two types of 
securities related to investment activities: available-for-sale and 
held-to-

[[Page 51865]]

maturity. Available-for-sale and held-to-maturity securities are 
generally held at fair value and amortized cost, respectively, on a 
firm's balance sheet. The Board estimates two types of losses on 
securities related to investment activities.\43\
---------------------------------------------------------------------------

    \43\ This portfolio does not include securities held for 
trading. Losses on these securities are projected by the Trading 
Profit and Loss Model that projects gains and losses on trading 
exposures.
---------------------------------------------------------------------------

    For debt securities classified as available-for-sale, projected 
fluctuations in the fair value of the securities due to changes in 
interest rates and other factors will result in unrealized gains or 
losses that are recognized in capital for some firms through other 
comprehensive income. Under U.S. GAAP, unrealized gains and losses on 
available-for-sale debt securities are reflected in accumulated other 
comprehensive income and do not flow through net income.\44\ Under the 
regulatory capital rule, accumulated other comprehensive income must be 
incorporated into common equity tier 1 capital for certain firms. 
Unrealized gains and losses are calculated as the difference between 
each security's fair value and its amortized cost. The amortized cost 
of each available-for-sale debt security is equivalent to the purchase 
price of the debt security, which is periodically adjusted if the debt 
security was purchased at a price other than par or face value, has a 
principal repayment, or has an impairment recognized in earnings.\45\
---------------------------------------------------------------------------

    \44\ Unrealized gains and losses on equity securities are 
recognized in net income and affect regulatory capital for all 
firms. See FASB ASU No. 2016-01, ``Financial Instruments--Overall 
(Subtopic 825-10): Recognition and Measurement of Financial Assets 
and Financial Liabilities.''
    \45\ The fair value of each available-for-sale security is 
projected over the nine quarter projection horizon using either a 
present value calculation, a full revaluation using a security-
specific discounted cash flow model, or a duration-based approach, 
depending on the asset class.
---------------------------------------------------------------------------

    Credit losses on available-for-sale and held-to-maturity securities 
may be also recorded. Except for certain government-backed obligations, 
both available-for-sale and held-to-maturity securities are at risk of 
incurring credit losses.\46\ The stress test models project security-
level credit losses, using as an input the projected fair value for 
each security over the nine-quarter projection horizon under the 
severely adverse scenario. Credit losses on securities are included in 
the projection of provisions.
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    \46\ Certain government-backed securities, such as U.S. 
Treasuries, U.S. government agency obligations, U.S. government 
agency or government-sponsored enterprise mortgage-backed 
securities, federally backed student loan asset-backed securities, 
and pre-refunded municipal bonds, are assumed not to be subject to 
credit losses.
---------------------------------------------------------------------------

    Projected other comprehensive income gains or losses from 
available-for-sale debt securities are computed directly from the 
projected change in fair value, taking into account credit losses and 
applicable interest-rate hedges on securities. All debt securities held 
in the available-for-sale portfolio are subject to other comprehensive 
income losses.
Losses on Private Equity Exposures
    The Board projects the value of private equity investments in 
response to the severely adverse scenario of the supervisory stress 
test.\47\ The Private Equity Model assigns losses and recoveries based 
on changes in fair value, recognized in net income for all positions, 
regardless of their individual accounting elections. While U.S. GAAP 
allows for private equity to be carried under a variety of accounting 
measures, the different accounting methods are generally not reflective 
of fundamental risk differences--fair value is typically realized upon 
the orderly sale of a given private equity investment, irrespective of 
its accounting treatment during the holding period.\48\
---------------------------------------------------------------------------

    \47\ The Board projects private equity losses only for firms 
that are required to submit FR Y-14Q, Schedule F.24 (Private Equity) 
because private equity exposures are reported on that schedule. 
Currently, Schedule F.24 is required to be reported by firms subject 
to Category I through III standards that have, on average, aggregate 
trading assets and liabilities of $50 billion or more, or aggregate 
trading assets and liabilities equal to 10 percent or more of total 
consolidated assets. As discussed in Section XI.A of this 
Supplementary Information, the Board is proposing to modify the 
threshold for Schedule F.24 to align with other banking book 
schedules.
    \48\ Unlike a bond or loan, private equity investments generally 
cannot be redeemed by holding to maturity and are therefore 
fundamentally exposed to market risk at exit.
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Losses on Trading Exposures
    The trading stress test models cover a wide range of a firm's 
exposure to asset classes such as public equity, foreign exchange, 
interest rates, commodities, securitized products, traded credit (for 
example, municipal securities, auction rate securities, corporate 
credit, and sovereign credit), and other fair-value assets. Loss 
projections are constructed by applying the market risk factor 
movements specified in the global market shock component \49\ to market 
values of firm-provided positions and risk factor sensitivities.\50\ 
The global market shock only applies to a subset of firms, as described 
in Section II.B.a of this Supplementary Information. In addition, the 
global market shock component is applied to firm counterparty exposures 
to generate losses due to changes in credit valuation adjustment, which 
is a change to the market value of an exposure (for example, a 
derivative) to account for the risk that the counterparty defaults on 
its obligation. Trading and credit valuation adjustment losses are 
calculated only for firms subject to the global market shock component. 
In contrast to the nine-quarter evolution of losses for other parts of 
the supervisory stress test, and as previously described, these losses 
are estimated and applied in the first quarter of the projection 
horizon. This timing is based on the observation that market 
dislocations can happen rapidly and unpredictably any time under stress 
conditions. It also ensures that potential losses from trading and 
counterparty exposures are incorporated into a firm's capital ratio at 
all points in the projection horizon.
---------------------------------------------------------------------------

    \49\ See Section II.B.a of this Supplementary Information.
    \50\ The supervisory trading models are also used to calculate 
gains or losses on firms' portfolios of hedges on credit valuation 
adjustment exposures.
---------------------------------------------------------------------------

    The Board separately estimates the risk of losses arising from the 
default of issuers of debt securities held for trading. These losses 
account for concentration risk in corporate, sovereign, agency, and 
municipal credit positions. In contrast to the trading losses described 
above, these losses are applied in each of the nine quarters of the 
projection horizon to capture the risk that several quarters of 
stressful economic conditions may cause additional issuers of debt 
securities to default, which aligns with the Board's principle of 
conservatism from the Stress Testing Policy Statement.
Largest Counterparty Default Losses
    The largest counterparty default component is applied to firms with 
substantial trading or custodial operations. This component captures 
the risk of loss due to the unexpected default of the counterparty 
whose default on derivatives and securities financing transactions, 
with exposures revalued by applying the global market shock component, 
would generate the largest stressed losses for a firm. Consistent with 
the Board's modeling principles and with the losses associated with the 
global market shock component, losses associated with the largest 
counterparty default component are recognized in the first quarter of 
the projection horizon.
Balance Projections and the Calculation of Regulatory Capital Ratios
    As described above, the Board assumes that a firm takes actions to 
maintain its current level of assets, including its investment 
securities, trading assets, and loans, over the

[[Page 51866]]

projection horizon. The Board also assumes that a firm's risk-weighted 
assets and leverage ratio denominators remain unchanged over the 
projection horizon, except that the Board will account for changes 
primarily related to the calculation of regulatory capital or due to 
changes to the Board's regulations.\51\
---------------------------------------------------------------------------

    \51\ See 12 CFR 252, Appendix B, section 3.4; Board, Press 
Release (Mar. 4, 2020), <a href="https://www.federalreserve.gov/newsevents/pressreleases/bcreg20200304a.htm">https://www.federalreserve.gov/newsevents/pressreleases/bcreg20200304a.htm</a>.
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    The Board includes five regulatory capital ratios in the 
supervisory stress test: (1) common equity tier 1 risk-based capital, 
(2) tier 1 risk-based capital, (3) total risk-based capital, (4) tier 1 
leverage, and (5) supplementary leverage. A firm's post-stress 
regulatory capital ratios are projected in accordance with the Board's 
regulatory capital rule using the Board's projections of pre-tax net 
income and other scenario-dependent components of the regulatory 
capital ratios. Pre-tax net income and the other scenario-dependent 
components of the regulatory capital ratios are combined with 
additional information, including assumptions about taxes and capital 
distributions, to project post-stress measures of regulatory capital. 
In those calculations, the Board adjusts pre-tax net income to account 
for taxes and other components of net income, such as income 
attributable to minority interests, to arrive at after-tax net income. 
The Board calculates the change in equity capital over the projection 
horizon by combining projected after-tax net income with changes in 
other comprehensive income, assumed capital distributions, and other 
components of equity capital. The path of regulatory capital measures 
over the projection horizon is calculated by combining the projected 
change in equity capital with the firm's starting capital position and 
accounting for other adjustments to regulatory capital specified in the 
Board's regulatory capital framework.\52\ The denominator of each 
firm's risk-based capital ratios is based on a firm's standardized 
approach for calculating risk-weighted assets on the jump-off date of 
the supervisory stress test, and may change for each quarter of the 
projection horizon to account for adjustments specified in the capital 
rule (for example, adjustments due to the thresholds for deducting 
certain deferred tax assets).
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    \52\ The regulatory capital framework specifies that regulatory 
capital ratios account for items subject to adjustment or deduction 
in regulatory capital, limits the recognition of certain assets that 
are less loss-absorbing, and imposes other restrictions. See 
generally 12 CFR part 217.
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B. Supervisory Stress Test Scenarios

    The Board conducts the supervisory stress test using two 
scenarios--the baseline and severely adverse. The severely adverse 
scenario describes a hypothetical set of conditions designed to assess 
the strength and resilience of firms in a severely adverse economic 
environment and includes 28 variables that are disclosed by the Board 
each year prior to the supervisory stress test. Some variables describe 
economic developments within the United States while others describe 
developments in foreign countries.\53\ These variables serve as an 
input to the calculation of supervisory stress test results for all 
firms. As discussed above, for a subset of firms, the severely adverse 
scenario also includes two additional components: the global market 
shock component and the largest counterparty default component. The 
scenarios and associated components are developed solely for 
supervisory stress testing purposes and do not represent economic 
forecasts of the Board.
---------------------------------------------------------------------------

    \53\ For a description of the macroeconomic variables applicable 
to the 2025 supervisory stress test, see Board, 2025 Stress Test 
Scenarios (Feb. 2025), <a href="https://www.federalreserve.gov/publications/files/2025-stress-test-scenarios-20250205.pdf">https://www.federalreserve.gov/publications/files/2025-stress-test-scenarios-20250205.pdf</a>.
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Geographic Variation of Macroeconomic Variables
    While the Board projects the paths of macroeconomic variables at 
the national level, the Board uses regional-level (that is, state- and/
or county-level) macroeconomic variables in the stress test models to 
project losses on certain loans held for investment at amortized 
cost.\54\ In general, model outputs are demonstrably impacted by the 
macroeconomic environment, as both probability of default and loss 
given default increase during periods of economic stress. Importantly, 
the macroeconomic environment can also vary notably across geography, 
in addition to across time. For instance, during the 2007-2009 crisis 
period, housing prices fell more sharply in certain geographies 
compared to others. Accordingly, historical loss rates in many loan 
categories were higher during this period in geographies where housing 
prices fell more sharply.
---------------------------------------------------------------------------

    \54\ Specifically, the Board uses regional-level macroeconomic 
variables in the First Lien Model, the Home Equity Model, the Credit 
Card Model, the Auto Model, and the Commercial Real Estate Model.
---------------------------------------------------------------------------

    Therefore, to account for the impacts of different macroeconomic 
environments across geographies on historical loan performance, the 
Board calibrates model parameters in certain stress test models using 
regional macroeconomic variables as opposed to national macroeconomic 
variables. For example, the unemployment rate used in an applicable 
model may be the state level unemployment rate, while the house price 
index values used in the model may be the county-level house price 
indices or, in the case of loans in counties where a house price index 
is not projected, a state-level house price index.\55\ Analysis 
performed by the Board demonstrates that a certain model's statistical 
fit and sensitivity to the macroeconomic environment may perform better 
when using regional-level variables compared to when using only 
national-level variables. The use of regional-level variables is 
described in each applicable model section of the comprehensive model 
documentation.
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    \55\ Certain variables do not vary based on geography. For 
example, interest rates are typically set by national and not 
regional markets. For these variables, the Board uses the national-
level paths in the models.
---------------------------------------------------------------------------

    However, because the severely adverse scenario only includes 
national-level variable paths, the Board derives the paths of regional-
level variables from the paths of national-level variables. The Board 
employs a simple approach to calculating the paths of regional-level 
variables in that these variables have the same percentage change (in 
the case of an index variable) or level change (in the case of non-
index variables) as the national-level variables, but the starting 
points are the regional-level values, not the national-level values. 
For example, the projected path of the house price index is assumed to 
have the same percentage change in a given quarter as the percentage 
change of the national house price index,\56\ and the projected path of 
unemployment rate is assumed to have the same level change in a given 
quarter as the level change of the national unemployment rate.\57\ The 
use of percentage changes for home price indices and level changes for 
unemployment rates avoids accentuating differences in the macroeconomic 
environment observed immediately prior to the beginning of the 
scenario, which could lead to large discrepancies in projected variable 
paths across geographies during the severely adverse scenario.
---------------------------------------------------------------------------

    \56\ The house price index used in the supervisory stress test 
scenarios is set to be equal to 100 in January 2000. This choice of 
index month is arbitrary and does not reflect any underlying 
economic importance of this period.
    \57\ For example, if the national unemployment rate increases by 
0.5 percentage points in a given quarter, the state-level 
unemployment rate would be projected to increase by 0.5 percentage 
points in that quarter as well.
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    These simple, uniform policies for allocating changes to the 
national

[[Page 51867]]

macroeconomic environment at the regional level ensure that loans to 
borrowers in certain geographies are not unduly favored or penalized. 
While it is plausible that certain geographies may experience more 
volatility than others in terms of the macroeconomic environment, the 
Board does not estimate such volatility to differentiate scenarios 
across geography, to avoid making assumptions about the severity of a 
hypothetical recession across different regions.
    The Board also uses historical regional data to produce model 
projections. While the regional scenarios are projected based on the 
national path, the Board retains variation in the historical regional 
macroeconomic variables.\58\ The Board may also use historical regional 
macroeconomic variables in the models to calculate the appreciation in 
house prices since origination (which may be needed to calculate loan-
to-value ratios), or the Board may use regional macroeconomic variables 
to calculate year-over-year changes in the variables. Alternatively, 
the Board could replace all historical values with their national 
equivalent when projecting losses, thus applying a truly uniform 
treatment across geographies. While this alternative would have the 
benefit of maximizing geographic consistency, it would ignore 
meaningful variation in the historical environment and thereby reduce 
the predictive power of the model. For instance, if a given geography 
has had higher house price appreciation since its origination date 
compared to the national average, without incorporating these 
historical values into the macroeconomic data used to project losses 
the model would understate the level of equity the borrower has as of 
the beginning of the projection period. The Board has therefore 
developed this hybrid approach to estimating losses in the supervisory 
stress test, in which it applies a uniform treatment to projected 
values of macroeconomic variables across geographies, while also 
retaining historical differences across geographies. This methodology 
allows for the incorporation of all available historical data needed to 
produce accurate projections, while avoiding the need to make 
assumptions about which geographies will have more or less severe 
macroeconomic paths during a hypothetical recession. Further discussion 
of how the Board's models account for geographic variation in 
variables, including a proposed change to the Board's modeling 
approach, is included in the comprehensive model documentation, 
available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>.
---------------------------------------------------------------------------

    \58\ The historical regional unemployment rate and house price 
index data are seasonally adjusted using the X11 procedure when a 
seasonally adjusted version of these series is not available from 
the source data. Seasonal adjustment is applied for consistency and 
comparability with the published national scenario variables. For 
more information about the X11 procedure developed by the U.S. 
Census Bureau, see Shiskin J., Young A., and Musgrave, J., 1967. The 
X-11 Variant of the Census Method II Seasonal Adjustment Program. 
U.S. Department of Commerce, Bureau of the Census.
---------------------------------------------------------------------------

    Question 4: What are the advantages and disadvantages of the 
Board's treatment of regional (i.e., state and county) macroeconomic 
variables in the credit risk models?
    Question 5: What alternatives should the Board consider to the 
approach outlined above for defining state and county macroeconomic 
variables based on the national variables included in the scenarios? 
What would be the advantages and disadvantages of these alternatives?
Auxiliary Variables
    In addition to the 28 variables that the Board discloses each year, 
the Board also generates paths for a limited number of other variables 
that are used in the supervisory stress test. These variables, known as 
auxiliary variables, are not disclosed by the Board because their paths 
are based on the paths of the 28 disclosed variables (that is, the 
paths are contingent upon movements in the 28 disclosed variables). For 
example, the path of Mexico's gross domestic product (GDP) growth rate 
is a function of the GDP growth rate paths of other country blocs that 
are disclosed. Some models use these auxiliary variables, as described 
in the applicable model sections of the comprehensive model 
documentation available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>.\59\
---------------------------------------------------------------------------

    \59\ Detailed descriptions of the process for creating the paths 
of auxiliary variables are included in the applicable model 
documentation.
---------------------------------------------------------------------------

C. Data Used in Stress Testing

Input Data
    The Board generally develops and implements the models with data it 
collects on regulatory reports as well as proprietary third-party 
industry data. Most of the data used in the supervisory stress test 
projections are collected through the Capital Assessments and Stress 
Testing regulatory report (FR Y-14), which includes a set of annual (FR 
Y-14A), quarterly (FRY-14Q), and monthly (FRY-14M) schedules.\60\
---------------------------------------------------------------------------

    \60\ The FR Y-14 report forms and instructions are available on 
the Board's website at <a href="https://www.federalreserve.gov/apps/reportforms/default.aspx">https://www.federalreserve.gov/apps/reportforms/default.aspx</a>.
---------------------------------------------------------------------------

    A firm must submit detailed loan and securities information for all 
material portfolios on the FR Y-14Q and FR Y-14M. The definition of a 
material portfolio for purposes of FR Y-14 reporting is based on a 
firm's size and complexity.\61\ Portfolio categories are defined in the 
FR Y-14M and FR Y-14Q reporting instructions. Each firm has the option 
to submit the relevant data schedule for a given portfolio that does 
not meet the materiality threshold as defined in the instructions. If a 
firm does not submit data on its immaterial portfolio(s), the Board 
will assign to that portfolio the median loss rate estimated across the 
set of firms with material portfolios. This loss assumption adheres to 
the principle of simplicity, as well as the principle of consistency 
and comparability, from the Stress Testing Policy Statement.
---------------------------------------------------------------------------

    \61\ Specifically, the definition of a material portfolio varies 
depending upon a firm's categorization in the risk-based category 
framework adopted by the Board for determining prudential standards. 
See 12 CFR 238.10; 12 CFR 252.5.
---------------------------------------------------------------------------

    While each firm is responsible for ensuring the completeness and 
accuracy of data provided in the FR Y-14 reports, the Board makes 
efforts to validate firm-reported data and requests resubmissions of 
data where errors are identified. If data quality remains deficient 
after resubmission, the Board applies conservative assumptions to a 
particular portfolio or to specific data, depending on the severity of 
deficiencies. For example, if the Board deems the quality of a firm's 
submitted data too deficient to produce a stress test model estimate 
for a particular portfolio, then the Board assigns a high loss rate 
(for example, 90th percentile) or a conservative pre-provision net 
revenue rate (for example, 10th percentile) to the portfolio balances 
based on supervisory stress test projections of portfolio losses or 
pre-provision net revenue for other firms.\62\ If data that are direct 
inputs to stress test models are missing or reported erroneously but 
the problem is isolated in such a way that the existing supervisory 
framework can still be used, the Board assigns a conservative value 
(for example, 10th or 90th percentile) to the specific data based on 
all available data reported by firms. These assumptions are consistent 
with the Board's principle of conservatism and policies on the 
treatment of immaterial portfolios and missing or erroneous

[[Page 51868]]

data, as described in the Stress Testing Policy Statement.
---------------------------------------------------------------------------

    \62\ Prior to assigning a conservate loss or revenue rate to 
produce a firm's stress test results, the Board consults with a firm 
that submits deficient data in order to determine whether the 
applicable data issue can be remedied.
---------------------------------------------------------------------------

    Additionally, certain stress test model projections rely on data 
from the Consolidated Financial Statements for Holding Companies 
regulatory report (FR Y-9C), which contains consolidated income 
statement and balance sheet information for each firm subject to the 
stress test. The FR Y-9C also includes off-balance sheet items and 
other supporting schedules, such as the components of risk-weighted 
assets and regulatory capital, that may be used in the stress test 
models.
    In limited circumstances, the Board also uses data provided by 
third parties in the development and execution of the supervisory 
stress test. The comprehensive model documentation identifies these 
instances. The scenario data discussed above is also an input into the 
stress test projections.
Data Preparation and Adjustments
a. Data Preparation
    The data inputs the Board uses may not be initially suitable for 
use in the stress test models. In these cases, the Board takes several 
steps to prepare the data for use in the stress test models. The 
specific steps for each model are discussed in the applicable model 
descriptions within the comprehensive model documentation, though 
generally data are prepared for use in the models for two purposes: to 
remove outliers from the sample and to seasonally adjust the data. 
These adjustments help ensure that the model results are reasonable.
    The Board may remove outliers or data that are not applicable to 
the model from the sample to facilitate more usable results. For 
example, if a commercial real estate loan has a unusually high loan-to-
value (LTV) ratio (over 150 percent at origination), then data for that 
loan are not included in the Commercial Real Estate Model because its 
inclusion may produce unreliable results. Additionally, if first lien 
mortgages are insured by the Federal Housing Administration or 
Department of Veterans Affairs, then they are excluded from the First 
Lien Model because these loans would not generate losses in the 
supervisory stress test, as they are assumed to be fully insured by the 
U.S. government. In both examples, the model output is more sensible 
and more reflective of a firm's risk profile because of these 
adjustments.
    The Board also may seasonally adjust data, where appropriate. For 
example, the vacancy rate of hotel commercial real estate exposures may 
fluctuate on a seasonal cycle, with the vacancy rate moving higher or 
lower in certain months based on a somewhat predictable pattern. 
Because the vacancy rate can be an important variable for calculating 
losses on hotel commercial real estate loans, this rate is seasonally 
adjusted to ensure that the Commercial Real Estate Model produces more 
stable results.
    These types of data preparation steps help ensure that the Board's 
models produce more reasonable results and that they align with the 
principles in the Stress Testing Policy Statement in that they generate 
consistent and robust projections. The Board therefore expects to 
continue to use these data preparation steps, where appropriate, as 
they are integral to the supervisory stress test process.
b. Data Adjustments
    Data inputs are integral to generating the output of the stress 
test models, which is a key component of a firm's stress capital buffer 
requirement. The Board's Stress Testing Policy Statement notes that the 
Board does not use data submitted by one or some of the firms unless 
comparable data can be collected from all the firms that have material 
exposure in a given area when generating supervisory stress test 
projections.\63\ However, situations may arise where adjustments to a 
firm's data would make the results more reasonable, and therefore 
better calibrate a firm's stress capital buffer requirement to its risk 
profile. The Board expects to continue to make these adjustments going 
forward, where appropriate. Examples of when the Board may apply these 
adjustments are described below.
---------------------------------------------------------------------------

    \63\ See 12 CFR 252, Appendix B, section 2.8.
---------------------------------------------------------------------------

    For example, the Board may apply a data adjustment where there is 
missing or deficient firm-provided data, or where a firm uses 
divestiture accounting. As described above, if the Board deems the 
quality of a firm's submitted data too deficient to produce a stress 
test model estimate for a particular portfolio, then the Board assigns 
a conservative loss rate (for example, 90th percentile) or a 
conservative pre-provision net revenue rate (for example, 10th 
percentile) to the portfolio balances based on supervisory stress test 
projections of portfolio losses or pre-provision net revenue for other 
firms. If data that are direct inputs to stress test models are missing 
or reported erroneously but the problem is isolated in such a way that 
the existing supervisory framework can still be used, the Board assigns 
a conservative value to the specific data based on all available data 
reported by firms.
    Additionally, when a firm sells assets or businesses, it may use 
divestiture accounting in its financial statements until the sale is 
consummated. Under divestiture accounting, a firm may list divested 
assets as discontinued operations, classify them as held for sale or 
available for sale instead of held for investment or held to maturity, 
and report revenues as income from discontinued operations. The 
accounting classification can be important for the supervisory stress 
test as it may determine which model stresses the assets or income. For 
example, in the 2025 supervisory stress test, the Board adjusted 
certain input data that had been reclassified due to divestiture 
accounting to improve projections of loan losses and related income to 
ensure consistent treatment across firms with similar risks.

IV. Enhanced Disclosure Process

    The Board is proposing to codify an enhanced disclosure process 
under which the Board would annually publish comprehensive 
documentation on the stress test models, invite public comment on any 
material changes that the Board seeks to make to those models, and 
annually publish the stress test scenarios for comment.

A. Annual Disclosure of Models

    Under the proposal, the Board would annually publish comprehensive 
documentation on the stress test models, similar to the comprehensive 
documentation the Board is publishing with this proposal at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>. The 
Board would be required to publish this comprehensive documentation by 
May 15 of the year in which the stress test is performed, and the 
models described in the documentation would be used to produce the 
stress test results disclosed by the Board by June 30 of that year. In 
addition, the Board would seek public comment, and respond to such 
public comment, on any material changes to the models before 
implementing those changes in a stress test. Material model changes are 
discussed in more detail in Section IV.B of this Supplementary 
Information. To implement this enhanced disclosure process, the Board 
is proposing to revise Regulations YY and LL, as well as the Stress 
Testing Policy Statement.
    For example, if the Board did not seek to make any material model 
changes to its stress test models for the 2027 supervisory stress test, 
then it would publish the comprehensive model documentation used in the 
2027 stress test cycle by May 15, 2027. This

[[Page 51869]]

documentation would identify any changes (relative to the models used 
in the 2026 stress test), including technical, non-material changes to 
the models to improve performance. This process would allow the public 
to review the changes, as well as comprehensive documentation on the 
models used in the 2027 stress test cycle, before the release of the 
stress test results.
    As an alternative example, if the Board sought to implement a 
material model change (as discussed in Section IV.B of this 
Supplementary Information) in the 2027 supervisory stress test, then 
the Board would seek comment on the proposed change, consider and 
respond to public feedback, and, then implement, defer, or reject the 
material model change for the 2027 stress test cycle. If the Board 
sought to implement the material model change in the 2027 stress test, 
the Board would republish updated model documentation before or 
simultaneously with the annual publication of comprehensive model 
documentation (i.e., by May 15, 2027). This process for material model 
changes would increase the transparency of the Board's stress testing 
model framework and ensure that the public has the opportunity to 
comment on material model changes before they are used in the next 
stress test cycle.
    Question 6: How else could the Board enhance the transparency and 
public accountability of its stress test models? For instance, what 
additional information regarding the stress test models, if any, should 
the Board provide, and why?
    Question 7: How else could the Board facilitate public 
participation in model development? For example, the Board could invite 
comment on all model changes, rather than only material model changes, 
before implementing them in the stress test. Under such an approach, 
the Board could make an exception for technical or other types of 
ministerial changes. Such a process would limit the Board's flexibility 
to revise models due to unforeseen events and circumstances. What are 
the advantages and disadvantages of this expanded approach or other 
approaches to facilitate public participation in model development? How 
should the Board balance transparency and public accountability with 
model dynamism and operational burden?
    Question 8: What are the advantages and disadvantages of inviting 
public comment, and committing to responding to comments, on material 
model changes before the Board implements them in the subsequent stress 
test?
    Question 9: What are the advantages and disadvantages of publishing 
the comprehensive model documentation by May 15 of each stress test 
cycle? For example, does this timeline provide enough time for the 
public to review any changes made by the Board to confirm they are not 
material? Should the Board consider publishing the comprehensive model 
documentation earlier at an earlier date, such as April 5, or a later 
date, such as June 30? What would be the advantages or disadvantages of 
publishing the comprehensive model documentation earlier or later?
    Question 10: The Board is not currently publishing the results of 
its internal model validation process. What would be the advantages and 
disadvantages of publishing these results or providing more information 
about its internal model validation process?

B. Model Changes

    The proposed rule would define a ``model change'' to mean ``the 
introduction of a new model or a conceptual change to an existing 
model.'' \64\ Conceptual changes to existing models would include 
changes to model assumptions, incorporation of a new statistical 
technique to estimate loss, or the addition or deletion of any model 
components or sub-components that currently inform a firm's stress 
capital buffer requirement.
---------------------------------------------------------------------------

    \64\ As discussed in Section II.D of this Supplementary 
Information, there are twenty-one component models that comprise the 
stress test models. A ``new model'' would mean a model that fully 
replaces one of these twenty-one component models or is added to the 
modeling suite (e.g., a 22nd component model). For purposes of 
assessing materiality, as discussed in Section IV.C of this 
Supplementary Information, model changes would not be aggregated or 
netted across the component models.
---------------------------------------------------------------------------

    Model changes would not include changes resulting from updates or 
adjustments to input data, such as firm data, third-party vendor data, 
and scenario data, including any re-estimation based on this data, as 
well as changes related to the mechanical implementation of federal, 
state, or local laws that are directly embedded in a stress test model 
(e.g., the federal statutory tax rate).\65\ As is current practice, the 
Board would continue to implement model changes related to changes in 
accounting definitions or regulatory capital rules and model parameter 
re-estimation based on newly available data with immediate effect. 
These types of adjustments would not be considered model changes since 
they do not substantively change the form of the stress test models as 
described in the documentation. For example, the Board re-estimates 
many of its models with updated data each year when it runs the 
supervisory stress test. This re-estimation may result in changes to 
the statistical coefficients produced by some of the models, even 
though the Board has made no conceptual changes to the models. Under 
the proposed definition of model change, such re-estimation would not 
be viewed as a model change because the resulting changes stem solely 
from updated data and not from a conceptual change to the models. In 
contrast, the introduction or revision of a legal requirement that 
causes a conceptual change to a model could be considered a model 
change, and the Board would seek public comment before implementing 
such a change if it met the proposed definition of a material model 
change.
---------------------------------------------------------------------------

    \65\ Re-estimation comprises updates to model parameters based 
on consideration of different input data (e.g., incorporating the 
most recent year's data as a model input, or incorporating data from 
new stress test entrants or from mergers).
---------------------------------------------------------------------------

    Question 11: What other types of changes to the supervisory stress 
testing framework could the Board consider including in the definition 
of ``model change''? What are the advantages and disadvantages of 
broadening or narrowing the definition of ``model change''? For 
example, should the Board define ``model changes'' to include changes 
that result from new or updated input data, or changes that result from 
using a new, third-party data source?

C. Material Model Changes

    Each year, the Board refines and enhances its stress test models to 
reflect advances in modeling techniques, respond to model validation 
findings, incorporate richer and more detailed data, or identify more 
stable models or models with improved performance, particularly under 
stressful economic conditions. These changes may include re-
specification of models based on performance testing, benchmarking, and 
other targeted changes used to produce projections.\66\ This process is 
an important aspect of the modeling framework to help ensure that the 
stress test models capture changes in borrower and lender behavior and 
bank business practices. These model changes also help ensure that the 
models are able to remain dynamic (i.e., can be enhanced to capture 
emerging risks), produce

[[Page 51870]]

reasonable results, identify salient risks at firms, and maintain an 
optimal level of robustness and stability.
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    \66\ Benchmarking is the process of evaluating a model's 
performance by comparing its outputs and other performance metrics 
against a specific standard, baseline, or the output and performance 
of other comparable models or relevant data sources.
---------------------------------------------------------------------------

    In addition, the Board must sometimes make changes to its stress 
test models while it is running the stress test in response to 
unforeseen events or circumstances to ensure that model output is 
reasonable. For example, during the COVID-19 pandemic, the vacancy 
rates for hotel properties were unprecedented and the Board made 
certain adjustments to yield sensible commercial real estate loan 
losses in the model output. Without making these in-cycle changes, the 
results of the stress test would have been irrational and led to stress 
capital buffer requirements that were not commensurate with applicable 
firms' risk profile.
    Under the proposed enhanced disclosure process, if these changes 
are not material, as defined below, the Board would publish these model 
changes by May 15 of the year in which the stress test is performed. To 
balance the benefit of public feedback with the operational and 
resource costs of seeking such feedback and to allow the Board to make 
timely model adjustments to ensure reasonable results, the Board would 
not formally invite public comment on these non-material model changes 
before implementing them in the stress test; however, the Board 
welcomes public feedback on these and all other aspects of the stress 
test models once they are published. Notably, the Board would not 
implement any in-cycle adjustments that are considered material model 
changes prior to seeking public comment on the adjustment. In addition, 
the Board would review and respond to all substantive public comments 
on material model changes before implementing them in the stress test.
    As discussed above, the Board is proposing to publish for comment 
all material model changes and respond to all substantive comments on 
such material model changes before implementing them in the stress 
test. For example, if the Board sought to implement a new statistical 
technique that would result in a material model change, then the Board 
would seek public comment prior to implementing either of those 
changes.\67\ The Board is proposing to define a ``material model 
change'' as a model change that could have, in the Board's estimation, 
an impact on the post-stress common equity tier 1 capital ratio of any 
firm, or on the average post-stress common equity tier 1 capital ratios 
of all firms required to participate in the upcoming stress test cycle, 
based on the prior year's severely adverse scenario and prior year's 
input data, equal to (i) a change of 20 basis points or more in the 
projected common equity tier 1 ratio of any firm participating in the 
upcoming stress test cycle; or (ii) a change of 10 basis points or more 
in the average of the absolute value of each firm's change in projected 
common equity tier 1 ratio.\68\ The Board proposes to apply this 
definition of a material model change across both Regulation YY and 
Regulation LL, such that the individual materiality threshold would 
apply to all firms required to participate in the next stress test 
under either regulation, and such that the Board's estimation of 
whether a change meets the aggregate materiality threshold would be 
determined across all firms required to participate in the next stress 
test under either regulation.
---------------------------------------------------------------------------

    \67\ For purposes of assessing materiality, model changes would 
not be aggregated or netted across the component models. For 
example, if the Board proposed a change to both the Pre-Provision 
Net Revenue Model and Corporate Model in the same stress test cycle, 
the Board would estimate the effects of each change separately for 
purposes of determining materiality. Similarly, for purposes of 
assessing materiality, model changes would not be aggregated or 
netted within component models. For example, if the Board proposed 
two changes to a component model, the Board would evaluate the 
materiality of each change separately.
    \68\ The Board would take the absolute value of each firm's 
change in projected common equity tier 1 ratio, then average those 
values. If the average is 10 basis points or greater, the change 
would constitute a material model change.
---------------------------------------------------------------------------

    The Board is proposing to use the threshold of a 20 basis point 
change in the common equity tier 1 capital ratio for individual firms 
in the definition of material model change because that threshold would 
ensure that the public would be able to comment on any change that 
would be likely to affect a firm's stress capital buffer requirement. 
Considering the history of recent model changes, a threshold of 20 
basis points would generally capture model changes that involve 
conceptual enhancements to model specifications, such as to incorporate 
improved modeling techniques or to capture emerging risks, while 
scoping out those that are simpler model refinements, such as those 
implemented to ensure that the models maintain consistency given 
changing requirements (e.g., refinements made to accommodate the 
transition from the London Interbank Offered Rate to SOFR). Therefore, 
changes of smaller magnitudes would be unlikely to impact a firm's 
stress capital buffer requirement, particularly if the proposed two-
year averaging approach to calculate a firm's stress capital buffer 
requirement is adopted.\69\ If the two-year averaging approach is not 
finalized or not finalized as proposed, the Board would consider a 
lower individual materiality threshold of 10 basis points, which would 
ensure that the public would be able to comment on any change that 
would be likely to affect a firm's stress capital buffer requirement 
without two-year averaging.
---------------------------------------------------------------------------

    \69\ See 90 FR 16843 (Apr. 22, 2025).
---------------------------------------------------------------------------

    The Board is proposing the threshold of a 10 basis point average 
change in the absolute value of the change to each firm's projected 
common equity tier 1 capital ratio in case a model change has minimal 
individual impacts, but has a notable aggregate impact on firms 
required to participate in the upcoming stress test. The Board selected 
10 basis points for this aggregate prong because a model change of this 
size would be likely to impact the aggregate projected common equity 
tier 1 capital ratio, which is a salient measure of the health of the 
banking system. A change that satisfies either of these materiality 
thresholds would be considered a material model change.
    Question 12: What are the advantages and disadvantages of this 
definition of a material model change? What alternative quantitative 
thresholds for materiality, if any, should the Board consider, and why? 
For example, in assessing the materiality of a model change, as 
described in the Stress Testing Policy Statement, the Federal Reserve 
currently considers a change to be highly material if it would result 
in a change in the common equity tier 1 capital ratio of 50 basis 
points or more for one or more firms, relative to the model used in 
prior years' supervisory exercises. What would be the advantages and 
disadvantages of this or other alternative standards?
    Question 13: What alternative definitions of materiality, if any, 
should the Board consider? For example, the Board could consider the 
impact of a change on a firm's pre-tax net income, rather than its 
common equity tier 1 ratio. What are the advantages and disadvantages 
of such alternative definitions?
    Question 14: Under the proposal, for purposes of assessing the 
materiality of a model change, the Board would not aggregate or net the 
impact across or within component models. What forms of netting or 
aggregation, if any, would be most appropriate and why? What would be 
the advantages and disadvantages of netting or aggregating model 
changes across or within component models to assess materiality? If the 
Board were to net or

[[Page 51871]]

aggregate model changes, should the Board consider alternative 
materiality thresholds? For example, the Board could consider an 
alternative definition of materiality that considers the aggregate 
impact of all of the model changes the Board intends to implement in a 
future stress test cycle. Alternatively, the Board could aggregate the 
impacts of all model changes to a given suite of models (e.g., credit 
risk models) instead of considering the individual impacts of model 
changes to the Auto Loan Model and the Commercial Real Estate Model.
    Question 15: What are the advantages and disadvantages of inviting 
and responding to public comment on material model changes before 
implementing those changes? The proposal does not currently specify the 
length of the comment period. What are the advantages and disadvantages 
of a set length for the comment period (e.g., 30-day, 60-day, etc.)? 
When considering the appropriate length of the comment period, how 
should the Board evaluate trade-offs, for instance, between ensuring 
that the public has ample time to consider and comment on material 
model changes and ensuring that the stress test results are released by 
June 30?
    Question 16: If the Board does not adopt its proposal to calculate 
a firm's stress capital buffer requirement by averaging stress test 
results over two consecutive years, should the Board consider a lower 
threshold to determine materiality, such as 10 basis points for the 
individual firm threshold instead of the proposed 20 basis points? What 
would be the advantages and disadvantages of a lower threshold?

D. Annual Disclosure of Scenarios

    Under the proposal, the Board would annually publish for comment 
the proposed stress test scenarios by October 15 of the calendar year 
prior to the stress test, for at least a 30-day period. The timing of 
the release and duration of the comment period will allow for 
sufficient time to respond to comments and finalize the scenarios 
within the current window for publishing final scenarios by February 15 
in each annual stress test cycle.\70\ The disclosure of the annual 
scenarios for comment, along with the implementation of additional 
scenario variable guides and revisions to the Scenario Design Policy 
Statement, would meaningfully improve the transparency, public 
accountability, and predictability of the annual stress tests.
---------------------------------------------------------------------------

    \70\ Trading or other components of the scenarios, and any 
additional scenarios used by the Board, would continue to be 
communicated by March 1 of the calendar year in which the stress 
test is performed. 12 CFR 238.132(b); 12 CFR 238.143(b)(2)(i); 12 
CFR 252.14(b)(2)(i); 12 CFR 252.44(b); 12 CFR 252.54(b)(2)(i).
---------------------------------------------------------------------------

    The publication of macroeconomic scenarios in October would use 
nowcasts, which are projections under baseline conditions, to determine 
the jump-off points for the proposed scenario variable paths. The final 
scenarios would be updated to include actual data. The paths of 
scenario variables may be adjusted to some extent between the initial 
scenario publication and the finalized scenario to reflect these 
updated values.
    By designing and publishing the guides described in Section IX.G of 
this Supplementary Information, the Board expects that the annual 
severely adverse scenarios will generally be more consistent and 
predictable year-to-year. As a result, the Board weighed whether 
publishing the annual scenarios for comment in a typical year would 
contribute meaningful additional accountability that would improve the 
stress test program, and whether the Board should limit publication of 
the annual scenarios for comment to situations where the Board is 
proposing to incorporate a salient risk into the scenarios that is not 
described in this proposal. However, in the interest of enhancing 
transparency and public accountability, the Board determined to 
maintain its current practice of publishing its annual scenarios and, 
further, to propose changes to Regulations LL and YY formalizing this 
disclosure process.
    Additionally, the Board plans to maintain its current practice of 
disclosing the final scenarios only after firms' portfolios are fixed, 
as disclosure of the final scenarios prior to the jump-off date of the 
stress test could incentivize firms to modify their businesses to 
minimize losses in the supervisory stress test without changing the 
actual risk profile of the firms. Therefore, the Board is proposing to 
move the jump-off date of the stress test from December 31 to September 
30. This proposed change is discussed in greater detail in Section VI.A 
of this Supplementary Information.
    Finally, as described in Section VI.B of this Supplementary 
Information, the Board is proposing to change the as-of date window for 
the global market shock to occur between October 1 of the calendar year 
two years prior to the year in which the stress test is performed to 
October 1 of the year prior to the year in which the stress test is 
performed. Therefore, the Board anticipates that the global market 
shock as-of date will have already occurred for most future proposals 
regarding the initial disclosure of the stress test scenarios. However, 
the Board has not yet announced the global market shock as-of date for 
the 2026 stress test and so cannot provide the exact relative shock 
values for certain global market shock variables since the relative 
shock values are a function of the actual data on the as-of date.
    For relative shocks associated with the 2026 global market shock, 
the data on the global market shock as-of date would be applied to 
determine relative shock values, which will be disclosed as part of the 
finalized scenarios. For example, if the Board proposes a shock to the 
BBB corporate spread of 200 basis points and the BBB corporate spread 
market level on the global market shock as-of-date is 400 basis points, 
then the relative shock to the BBB corporate spread would be 200/400, 
or 50 percent, for the 2026 global market shock.
    Question 17: How should the Board publish the annual scenario for 
comment? For example, the Board could publish the scenario on the 
Board's website or include the text and supporting materials in a 
Federal Register notice. Alternatively, the Board could consider 
codifying each annual scenario as a part of Regulation YY. What would 
be the advantages and disadvantages of these options or other 
alternatives?
    Question 18: What are the advantages and disadvantages of 
publishing the annual scenarios for comment prior to the jump-off date 
of the annual stress test cycle?
    Question 19: What are the advantages and disadvantages of a 30-day 
comment period? Should the Board consider an alternative comment period 
length? If so, how long should the comment period be (e.g., 45 days, 60 
days, etc.)? When considering the appropriate length of the comment 
period, how should the Board evaluate trade-offs, for instance, between 
ensuring that the public has ample time to consider and comment on 
annual scenarios and ensuring that the stress test scenarios can be 
finalized before February 15?
    Question 20: How should the Board analyze comments received from 
the public on proposed scenarios? What types of information would be 
helpful to commenters in order to understand how the Board incorporates 
comments received on proposed scenarios before finalizing the annual 
scenarios?

E. Stress Capital Buffer Requirement Reconsideration Process

    Under the Board's capital plan rule, a firm may request 
reconsideration of the calculation of its preliminary stress

[[Page 51872]]

capital buffer requirement within 15 calendar days of receiving notice 
of the preliminary requirement.\71\ A request for reconsideration may 
include a request for an informal hearing on the firm's request for 
reconsideration; the Board may, in its sole discretion, order an 
informal hearing if the Board finds that a hearing is appropriate or 
necessary to resolve disputes regarding material issues of fact.\72\ 
The Board is not proposing to change this reconsideration process.\73\ 
However, the Board is requesting public input on potential enhancements 
to the stress capital buffer requirement reconsideration process. In 
particular, the Board seeks public input on the following question:
---------------------------------------------------------------------------

    \71\ 12 CFR 225.8(h)(2)(i); 12 CFR 225.8(i)(2); 12 CFR 
238.170(h)(2)(i); 12 CFR 238.170(i)(2).
    \72\ 12 CFR 225.8(i)(3)(ii); 12 CFR 225.8(i)(4); 12 CFR 
238.170(i)(3)(ii); 12 CFR 238.170(i)(4).
    \73\ Model adjustments made in response to a reconsideration 
request granted by the Board would not be considered model changes 
under the proposed enhanced disclosure process.
---------------------------------------------------------------------------

    Question 21: What enhancements, if any, should the Board consider 
making to its reconsideration request process? For example, the Board 
could allow firms more time to request reconsideration of their 
results, broaden or narrow the grounds for and scope of review, and/or 
modify existing reconsideration request requirements in light of the 
publication of the comprehensive model documentation and proposed 
enhanced disclosure process. What would be the advantages and 
disadvantages of these enhancements? What other changes, if any, should 
the Board consider making to the reconsideration requirements and 
procedures? What would be the advantages and disadvantages of those 
changes?

V. Revisions to the Stress Testing Policy Statement

    The Board is also proposing certain changes to the Stress Testing 
Policy Statement to (i) amend the section related to disclosure of 
information related to the stress test; and (ii) to align the Stress 
Testing Policy Statement with the proposed enhanced disclosure process.

A. Future Supervisory Stress Test Results Disclosures

    The Board's Stress Testing Policy Statement states that, in 
general, the Board does not share information regarding supervisory 
stress test results with firms that is not made available to the 
broader public. However, providing additional details to a firm about 
its own results could provide the firm with additional visibility into 
its stressed revenue and loss projections, including any underlying 
risks, and improve the firm's understanding of its stress capital 
buffer requirement. For example, additional results information would 
allow a firm to better understand how the stress test translates their 
balance sheet and income information into projected losses and revenue, 
which could help them better plan their business and understand the 
risk of their exposures. To provide additional transparency, the Board 
is therefore proposing to revise the Stress Testing Policy Statement to 
clarify that the Board will generally disclose information directly to 
a firm about the firm's supervisory stress test results that is not 
available to the broader public, so long as the Board discloses similar 
information to the other firms participating in a given stress test 
cycle. For example, the Board may provide a firm's common equity tier 1 
capital ratio during all quarters of the projection horizon. Providing 
firm-specific results directly to the affected firms even when that 
information is not disclosed to the broader public would allow firms to 
better understand their results while preventing potentially sensitive 
information about a firm from being shared with competitors. The Board 
would continue to disclose the supervisory stress test results to the 
public.
    Question 22: What are the advantages and disadvantages of revising 
the Stress Testing Policy Statement to clarify that the Board will 
generally share non-public information about a firm's results directly 
with a firm (provided that the Board is disclosing similar information 
to other participating firms)?

B. Other Revisions to the Stress Testing Policy Statement

    In addition, the Board is proposing to revise the Stress Testing 
Policy Statement to align it with the proposed enhanced disclosure 
process. For example, the Board is proposing to state that, during 
model development, it invites, evaluates, and responds to substantive 
public input on the stress test models. The Board is also proposing to 
revise the Stress Testing Policy Statement to clarify that its public 
disclosures about the stress test will now include comprehensive 
descriptions of the models and changes to those models.
    Question 23: What other changes could the Board make to the Stress 
Testing Policy Statement to reflect the enhanced transparency of the 
supervisory stress test or to supplement the Board's efforts to make 
the supervisory stress test more transparent and to facilitate public 
participation? What are the advantages and disadvantages of such 
changes?

VI. Other Revisions to the Stress Testing and Capital Plan Rules

    The Board is also proposing to revise the stress testing and 
capital plan rules to reflect the Board's efforts to disclose more 
information about the stress test scenarios.

A. Stress Test Jump-Off Date Change

    The Board is separately seeking comment on the proposed scenarios 
for use in the 2026 supervisory stress test. In general, disclosure of 
the proposed scenarios prior to the jump-off date of the supervisory 
stress test could incent firms to temporarily modify their businesses 
to affect the results of the stress test without changing the actual 
risk profile of the firms. The Board recognizes that the increased 
transparency around scenario design resulting from the disclosure of 
additional guides and a macroeconomic model used in that process would 
allow firms to anticipate the trajectories of key scenario variables. 
Using this information, firms could adjust their portfolios to specific 
aspects of the proposed scenarios in ways that would reduce measured 
losses without reducing the actual riskiness of the portfolios. Such 
changes to firm business profiles could also result in greater than 
typical quarter-to-quarter variability in the banking books of firms.
    To address this potential risk associated with increased 
transparency, the Board proposes to modify the jump-off date of the 
supervisory and company-run stress tests from December 31 to September 
30, while leaving unchanged the other dates associated with publication 
of the final scenario and stress test results.\74\ With respect to the 
capital planning rules, the Board proposes accomplishing this change 
through revision to the definition of ``planning horizon'' in 
Regulation Y and Regulation LL. This change would allow the Board to 
publish the scenario for comment after the jump-off date of the stress 
test, preventing firms from adjusting their exposures based on the 
stress test. However, this proposed change would introduce an 
additional quarter of staleness to the stress test and

[[Page 51873]]

stress test results. This change would also affect firms' capital plan 
submissions. Although the due date for firms' annual capital plan 
submissions would be unchanged, because of the proposed update to the 
definition of planning horizon, firms' capital plans would not project 
out as far. While the Board weighs these risks and considers adjusting 
the stress test jump-off date, the Board seeks input from the public 
regarding whether these risks are outweighed by the value to firms and 
the public by publishing scenarios prior to the jump-off date of the 
supervisory and company-run stress tests. Therefore, the Board seeks 
public comment on whether to propose such modifications to limit the 
ability of firms to adjust their balance sheets in response to the 
proposed scenario prior to the jump-off date of the stress test.
---------------------------------------------------------------------------

    \74\ The Board has experience operating the annual supervisory 
stress test with a September 30 jump-off date. See, e.g., Board, 
2015 Supervisory Scenarios for Annual Stress Tests Required under 
the Dodd-Frank Act Stress Testing Rules and the Capital Plan Rule 
(Oct. 23, 2014), <a href="https://www.federalreserve.gov/newsevents/pressreleases/files/bcreg20141023a1.pdf">https://www.federalreserve.gov/newsevents/pressreleases/files/bcreg20141023a1.pdf</a>.
---------------------------------------------------------------------------

    Question 24: What are the advantages and disadvantages of retaining 
a jump-off date that would occur after the publication of the annual 
scenario for comment? Should the Board consider retaining the December 
31 jump-off date in order to promote transparency? Are there additional 
risks or trade-offs that the Board should consider?
    Question 25: What would be the advantages and disadvantages of 
modifying the jump-off date of the stress test from December 31 to 
September 30? If the Board were to modify the jump-off date, what other 
changes should the Board consider making to the stress test timeline? 
For example, what would be the advantages and disadvantages if the 
Board were to change the timing of a firm's capital plan submission? 
What would be the advantages and disadvantages of these changes?
    Question 26: Should the Board consider modifying the jump-off date 
of the stress test to a later date, rather than an earlier date, in 
order to accommodate a public comment period?

B. Global Market Shock Date

    The global market shock (GMS) is applied to market risk positions 
held by the firms on a given as-of date, which, under the Board's 
stress test rule, currently occurs between October 1 of the previous 
year and March 1 of the year of a given stress test cycle.\75\ Under 
the Board's regulations, the GMS can apply to both the supervisory 
stress test and the company-run stress test for applicable firms. For 
the supervisory stress test and the company-run stress test, the Board 
must generally provide each affected firm with a description of the GMS 
and with the specific GMS as-of date by March 1 of the year in which 
the stress test occurs.\76\ For the company-run stress test, the Board 
generally must also notify each affected firm by December 31 of year 
preceding the stress test that the firm is required to include 
additional components or scenarios in its company-run stress test.\77\
---------------------------------------------------------------------------

    \75\ See, e.g., 12 CFR 238.143(b)(2)(i); 12 CFR 252.14(b)(2)(i); 
12 CFR 252.54(b)(2)(i).
    \76\ See, e.g., 12 CFR 238.132(b); 12 CFR 238.143(b)(2)(i); 12 
CFR 252.14(b)(2)(i); 12 CFR 252.44(b); 12 CFR 252.54(b)(2)(i).
    \77\ See, e.g., 12 CFR 238.143(b)(4)(i); 12 CFR 252.14(b)(4)(i); 
12 CFR 252.54(b)(4)(i).
---------------------------------------------------------------------------

    The Board selects a cycle-specific as-of date each year and, 
typically, announces it to firms about two weeks later to ensure the 
firms retain necessary data. The as-of date is expected to change from 
year to year to avoid creating potential incentives for firms to take 
temporary trading positions. However, there is a comprehensive date 
selection process that, in practice, shortens the actual window during 
which the GMS as-of date is generally selected. A wider date range 
would allow the Board to capture a broader range of market risks across 
different time periods, thereby improving the risk capture of the 
global market shock. The Board therefore proposes revising the date 
range for the GMS as-of date to occur between (inclusive of) October 1 
of the calendar year two years prior to the year in which the stress 
test is performed to (exclusive of) October 1 of the calendar year one 
year prior to the year in which the stress test is performed. By way of 
example, this change would mean that for the 2026 supervisory stress 
test, the GMS as-of date could fall on any date between October 1, 
2024, through September 30, 2025. The Board proposes using this date 
range because it would allow the Board to choose from a full year's 
worth of potential GMS as-of dates. Additionally, the proposed range 
would include only dates prior to the release of the given stress test 
cycle's GMS for notice and comment. Therefore, firms subject to the GMS 
would not be able to use their knowledge of the GMS as-of date to 
update their balance sheet positions or adjust their portfolios to 
minimize stress losses without a commensurate reduction in risk 
profile.
    In conjunction with the proposal to change the GMS as-of date 
window, the Board also proposes to change the date by which the Board 
needs to notify affected firms of this as-of date from March 1 of the 
year in which the stress test occurs. Unless it determines otherwise, 
the Board must notify affected firms of the GMS as-of date by October 
15 of the year prior to the year in which the stress test is performed. 
The Board would continue to provide firms with a description of the 
GMS, as finalized, by March 1 of the calendar year in which the stress 
test occurs. Additionally, to conform to the proposed changes to the 
stress test timeline, the Board proposes to change the date by which 
the Board must notify firms that they are required to include 
additional components or scenarios in their company-run stress test 
from December 31 to September 30 of the year preceding the stress test. 
This change would ensure that firms are aware of the components to 
which they would be subject prior to the annual publication of the 
scenarios for notice and comment.
    Question 27: What are the advantages and disadvantages of modifying 
the window for the GMS as-of date in the stress test from October 1 of 
the calendar year one year prior to the year in which the stress test 
is performed through March 1 of the year in which the stress test is 
performed, to a date that is no earlier than October 1 of calendar year 
two years prior to the year in which the stress test is performed and 
that precedes October 1 of the calendar year one year prior to the year 
in which the stress test is performed? What alternative GMS as-of date 
ranges, if any, should the Board consider, and why? In addition to 
changing the GMS as-of date window, what other changes, if any, should 
the Board consider making to the stress test timeline? What effects, if 
any, would changing the window for the GMS as-of date have on any other 
aspects of the stress test or the stress test timeline?
    Question 28: What are the advantages and disadvantages of the 
proposed dates by which the Board would notify firms of the GMS as-of 
date, provide a description of any associated components, and notify 
firms of any additional components that they are required to include in 
their supervisory and company-run stress tests? What alternative dates, 
if any, should the Board consider for these activities and why? For 
example, to better ensure that more stakeholders provide input into the 
proposed GMS, the Board could wait until the scenarios are final before 
notifying firms which components they must include in their company-run 
run stress tests.
    Question 29: The GMS only considers a firm's positions on one as-of 
date and only under one set of shocks. Should the Board consider 
alternative approaches to further increase the risk capture of the GMS, 
such as applying the GMS to more than one as-of date or more than

[[Page 51874]]

one set of shocks for a given stress test? What would be the advantages 
and disadvantages of these alternative approaches? What other 
approaches should the Board consider to improve the risk capture of the 
GMS and why?

C. Amendment to the Dividend Add-On Component Calculation

    The dividend add-on component of the stress capital buffer 
requirement currently comprises planned dividends in the fourth through 
seventh quarters of the planning (or projection) horizon of the 
supervisory stress test.\78\ Under the current framework, the planned 
dividends that are incorporated in the stress capital buffer 
requirement align with the effective date of the stress capital buffer 
requirement (that is, October 1 generally is the first day of the 
fourth quarter of the existing planning horizon) and last for the one-
year period through which the stress capital buffer requirement is 
expected to be effective (that is, through the seventh quarter of the 
existing planning horizon, after which the following year's stress 
capital buffer requirement would be expected to take effect).
---------------------------------------------------------------------------

    \78\ See 12 CFR 225.8(d)(16); 12 CFR 238.130. The planning (or 
projection) horizon for the supervisory stress test is nine 
consecutive quarters starting on the jump-off date of the 
supervisory stress test.
---------------------------------------------------------------------------

    As part of this rulemaking, the Board is proposing to change the 
jump-off date of the stress test from December 31 to September 30. To 
maintain alignment between the dividend add-on component of the stress 
capital buffer requirement and the one-year period during which the 
requirement typically is effective, the Board proposes to change the 
dividend add-on component to cover dividends issued in quarters five 
through eight, instead of quarters four through seven, of the planning 
horizon of the supervisory stress test. This change involves updates to 
the capital plan rules, at Regulation Y and Regulation LL, to any 
references to the relevant quarters of the planning horizon.\79\ This 
proposed revision is intended to maintain the alignment between the 
dividend add-on component and the one-year period during which the 
stress capital buffer requirement generally is effective, assuming the 
proposal to move the jump-off date of the stress test to September 30 
is adopted. If this aspect of the proposal is not adopted, then the 
Board would not adjust the planning horizon period for planned 
dividends.
---------------------------------------------------------------------------

    \79\ 12 CFR 225.8(f)(2)(i)(C)(1); 12 CFR 225.8(f)(4); 12 CFR 
225.8(h)(2)(ii)(A); 12 CFR 225.8(h)(2)(ii)(B); 12 CFR 225.8(k)(2); 
12 CFR 238.170(f)(2)(i)(C)(1); 12 CFR 238.170(f)(4); 12 CFR 
238.170(h)(2)(ii)(A); 12 CFR 238.170(h)(2)(ii)(B); 12 CFR 
238.170(k)(2).
---------------------------------------------------------------------------

    Such a change to the planning horizon period has likewise been 
proposed as part of the Board's proposed Modifications to the Capital 
Plan Rule and Stress Capital Buffer Requirement, issued in April 2025, 
in order to similarly maintain alignment between that proposal's 
updates to the effective date of a firm's stress capital buffer 
requirement and the dividend add-on component.\80\ Should both 
proposals be finalized as proposed, the Board would expect to adjust 
the dividend add-on component of the stress capital buffer requirement 
to maintain alignment between the dividend add-on component and the 
one-year period in which the stress capital buffer requirement 
generally is effective. In such an instance, the Board would expect to 
change the dividend add-on component to cover dividends issued in 
quarters six through nine of the planning horizon of the supervisory 
stress test.
---------------------------------------------------------------------------

    \80\ See 90 FR 16843 (Apr. 22, 2025).
---------------------------------------------------------------------------

    Question 30: What would be the advantages and disadvantages of the 
proposed change to the dividend add-on component of the stress capital 
buffer requirement?

VII. Revisions to the FR Y-14A/Q/M

    To reduce regulatory reporting burden, support the proposed model 
changes, and improve risk capture, the Board is proposing several 
revisions to the FR Y-14A/Q/M. To reduce regulatory reporting burden, 
the Board is proposing to remove items and documentation requirements 
that are no longer needed to conduct the supervisory stress test. For 
example, the proposal would remove certain FR Y-14 supporting 
documentation requirements that are no longer needed to assess a firm's 
FR Y-14 submission. The Board also proposes to collect additional data 
that would support the supervisory stress test models and improve risk 
capture. For example, to capture data in a manner that aligns better 
with the treatment of private equity under the macroeconomic scenario, 
the proposal would include revisions for reporting private equity 
exposures and associated hedges. Additionally, to broaden the 
consideration of hedges and revenue and loss sharing agreements in the 
stress test, the Board is proposing revisions that would capture more 
data on various types of hedges or revenue and loss sharing agreements. 
Lastly, the Board is proposing several minor revisions to clarify the 
FR Y-14 instructions or align with the proposed changes to the stress 
test timeline. The proposed revisions are described in Section XI.A of 
this Supplementary Information.

VIII. Proposed Changes to the Stress Test Modeling Framework

    The Board is proposing to use the models described in the documents 
posted on the Board's website to generate results for the 2026 
supervisory stress test. Included in these descriptions are some model 
specifications that were not used to conduct the 2025 supervisory 
stress test but are proposed to be used for the 2026 supervisory stress 
test. These proposed model changes are summarized in Section 
VIII.A.\81\ In addition, a detailed description of and rationale for 
each of these proposed model changes is provided in a separate document 
posted on the Board's website with the comprehensive model 
documentation. Section VIII.B of this Supplementary Information 
provides an analysis of the potential effects of the proposed changes. 
Based on this analysis, implementing the proposed model changes and 
proposed revisions to the global market shock scenario design in the 
2024 and 2025 stress tests would have, independent of other factors, 
increased the aggregate projected common equity tier 1 (CET1) stress 
ratio, on average, by 29 basis points. This is equivalent to a 
reduction in stress capital buffer requirements of approximately 23 
basis points or approximately 2.2 percent of current required capital.
---------------------------------------------------------------------------

    \81\ These proposed changes would constitute ``model changes'' 
under the proposed definition of ``model change,'' as discussed in 
Section IV.B of this Supplementary Information.
---------------------------------------------------------------------------

A. Proposed Changes to Stress Test Models

    The Board is proposing several changes to the supervisory stress 
test models for the 2026 stress test, which are discussed in more 
detail in the Model Changes document provided on the Board's website, 
at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>. More significant proposed changes to the Pre-provision Net 
Revenue and Operational Risk Models are described within the 
comprehensive model documentation, also available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>. The 
Board is requesting comment on the proposed changes, together with the 
model documentation.
    With respect to the credit risk models, the Board is proposing to 
change how it uses geography in scenario variables (First Lien, Home 
Equity, Credit Cards,

[[Page 51875]]

Auto, and Commercial Real Estate Models); change how it treats 
foreclosures under judicial supervision (First Lien and Home Equity 
Models); change how it calculates loss given default for international 
loans (Commercial Real Estate and Corporate Models); change how it 
includes losses attributable to accrued interest and carrying costs 
(First Lien and Home Equity Models); change how it uses multipliers in 
the Provisions Model; revise the mortgage loss given default model in 
the First Lien Model; revise the bank card model in the Credit Card 
Model; change how it projects losses on auto leases in the Auto Model; 
and update the probability of default, loss given default, and exposure 
at default components in the Corporate Model.
    With respect to the market risk models, the Board is proposing to 
update several of its market risk models for the 2026 stress test, 
including to simplify the Yield Curve Model; adjust its process for 
projecting credit valuation adjustments for derivative positions in the 
Credit Valuation Adjustment Model; lower the loss given default 
assumption amount and loan equivalent factor parameter in the Fair 
Value Option Model; update and simplify the Securities Model; and 
exclude additional counterparties in the Largest Counterparty Default 
Model.
    With respect to the net revenue models, the Board is proposing an 
alternative suite of pre-provision net revenue component models that 
depart from the current panel regression-based approach. This 
alternative suite is described in the Pre-provision Net Revenue Model 
documentation, available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>. The Board is also proposing 
to discontinue the current regression model used to project operational 
risk losses and instead project losses with a distributional model. 
This alternative model is described in the Operational Risk Model 
documentation, also available at <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>.
    Aggregate impacts on regulatory capital of the model changes 
described above are small (see Table 2). Across risk stripes, the 
proposed model changes would reduce credit, market, and operational 
losses, which would be balanced by the effects of the proposed model 
changes to the Pre-provision Net Revenue Model. Across firm categories, 
GSIBs would observe modest increases in aggregate projected CET1 stress 
ratio under the proposed changes. Firms subject to Category II-III 
standards would also observe a modest increase in their projected CET1 
stress ratio.
    Question 31: The Board invites public comment on these proposed 
model changes. What other changes, if any, should the Board consider 
implementing in the 2026 stress test cycle, either instead of or in 
addition to the proposed changes?
    Question 32: What other information or data should the Board 
consider to assess the quantitative economic impact of the proposed 
model changes and why?

B. Analysis of Proposed Model Changes

    To further enhance the transparency of the stress test models, this 
section analyzes the potential effects of the proposed model changes 
described in Section VIII.A of this Supplementary Information, and the 
liquidity horizon revisions to the global market shock scenario design 
described in Section IX.H of this Supplementary Information, that 
inform the Board's determination of firms' stress capital buffer 
requirements.
    In aggregate, the stress test model and scenario changes are not 
expected to materially change capital requirements for firms subject to 
the supervisory stress test, across various stress scenarios and jump-
off conditions at the start of the test. To illustrate the effect of 
these proposed model changes, this analysis averaged the impact of 
these changes on the CET1 stress ratio for a balanced sample of 30 
firms subject to the 2024 stress test and expected to participate in 
the 2026 stress test, then aggregated the averages.\82\ The analysis 
estimates that the proposed model and scenario changes, independent of 
other models and components, could have resulted in an increase of 29 
basis points in the average aggregate CET1 stress ratio. This is 
equivalent to a reduction in stress capital buffer requirements of 
approximately 23 basis points or approximately 2.2 percent of current 
required capital. The analysis estimates that the model changes would 
reduce stress capital buffer requirements by approximately 13 basis 
points, and that the revisions to the global market shock scenario 
design, described in Section IX.H of this Supplementary Information, 
would reduce stress capital buffer requirements by approximately 10 
basis points. For U.S. GSIBs, the analysis estimates a decline of 25 
basis points of stress capital buffer requirements.
---------------------------------------------------------------------------

    \82\ This analysis used the 2024 and 2025 scenarios, 
respectively, and the same data used for those years' stress tests. 
The estimated impact of these changes remains highly sensitive to 
the stress test scenario and firm-specific data for each year. While 
the precise impact will vary each year based on stress test 
scenarios and specific firm data, Board analysis across a range of 
conditions shows that capital requirements should remain essentially 
unchanged.
---------------------------------------------------------------------------

    As the U.S. banking system's 13.0 percent CET1 capital ratio (8.2 
percent leverage ratio) is well within the estimated optimal range in 
the literature,\83\ the net benefit of modest changes to the overall 
level of banking system capital is small.\84\ However, as discussed 
further below, the proposed model changes have varied effects on 
capital requirements across loss type and firm category.
---------------------------------------------------------------------------

    \83\ For discussions of optimal bank capital, see generally 
Basel Committee, ``An Assessment of the Long-Term Economic Impact of 
Stronger Capital and Liquidity Requirements'' (Aug. 2010), <a href="https://www.bis.org/publ/bcbs173.pdf">https://www.bis.org/publ/bcbs173.pdf</a> (``BCBS 2010 study''); see also I. 
Fender & U. Lewrick, Adding it All Up: The Macroeconomic Impact of 
Basel III and Outstanding Reform Issues, BIS Working Paper No. 591 
(Nov. 2016) (``Fender and Lewrick (2016)''), <a href="https://www.bis.org/publ/work591.pdf">https://www.bis.org/publ/work591.pdf</a>; D. Miles et al., Optimal Bank Capital, 123 The 
Econ J. 1, 29 Table 10 (Mar. 2013) (``Miles et al. (2013)''), 
<a href="https://academic.oup.com/ej/article/123/567/1/5080596">https://academic.oup.com/ej/article/123/567/1/5080596</a>; M. Brooke et 
al., Measuring the Macroeconomic Costs and Benefits of Higher UK 
Bank Capital Requirements, Bank of England, Financial Stability 
Paper No. 35 (Dec. 2015) (``Brooke et al. (2015)''), <a href="https://www.bankofengland.co.uk/-/media/boe/files/financial-stability-paper/2015/measuring-the-macroeconomic-costs-and-benefits-of.pdf">https://www.bankofengland.co.uk/-/media/boe/files/financial-stability-paper/2015/measuring-the-macroeconomic-costs-and-benefits-of.pdf</a>; S. 
Firestone et al., An Empirical Economic Assessment of the Costs and 
Benefits of Bank Capital in the United States, 101 Federal Reserve 
Bank of St. Louis Rev. 203, 203-30 (2019) (``Firestone et al. 
(2019)''), <a href="https://doi.org/10.20955/r.101.203-30">https://doi.org/10.20955/r.101.203-30</a>; B. Soederhuizen, 
et al., Optimal Capital Ratios for Banks in the Euro Area, 69 J. 
Fin. Stability, Art. No. 101164 (Dec. 2023) (``Soederhuizen et al. 
(2023)''), <a href="https://doi.org/10.1016/j.jfs.2023.101164">https://doi.org/10.1016/j.jfs.2023.101164</a>; J. Barth & S. 
Matteo Miller, Benefits and Costs of a Higher Bank `Leverage 
Ratio','' 38 J. Fin. Stability 37, 37-52 (Oct. 2018) (``Barth and 
Miller (2018)''), <a href="https://doi.org/10.1016/j.jfs.2018.07.001">https://doi.org/10.1016/j.jfs.2018.07.001</a>; J. 
Dagher et al., Benefits and Costs of Bank Capital, IMF Staff 
Discussion Note SND/16/04 (Mar. 2016) (``Dagher et al. (2016)''), 
<a href="https://www.imf.org/external/pubs/ft/sdn/2016/sdn1604.pdf">https://www.imf.org/external/pubs/ft/sdn/2016/sdn1604.pdf</a>.
    \84\ Ratios are based on the aggregate of all FR Y-9C filers as 
of Q1 2025, which generally excludes holding companies with less 
than $3 billion in consolidated assets and depository institutions 
without parent holding companies. The aggregate CET1 ratio 
additionally excludes holding companies that have opted in to the 
Community Bank Leverage Ratio requirement, and reflects standardized 
risk-weighted assets.
---------------------------------------------------------------------------

    Based on this analysis, the proposed model changes are expected to 
result in more risk-sensitive capital requirements, independent of 
their effect on the level of requirements. Specifically, implementation 
of the proposed model changes would render the models more stable, 
likely reducing misalignment between firms' losses under stress and 
their respective stress capital buffer requirements. To the extent that 
the stress capital buffer requirements are affected by these proposed 
model changes and are a part of firms' most-binding capital 
constraint,\85\ the proposed model

[[Page 51876]]

changes would thereby improve the risk sensitivity--and efficiency and 
effectiveness--of capital requirements.
---------------------------------------------------------------------------

    \85\ The capital requirements of firms with stress losses plus 
dividend add-ons reliably below the 2.5 percent capital conservation 
buffer would be unaffected by the proposed model changes.
---------------------------------------------------------------------------

    This analysis recognizes that the limited overall effect on 
stressed CET1 capital ratios masks significant variation across the 
different loss drivers. As shown in Table 2 below, the proposed model 
changes could result in less severe credit, market, and operational 
loss estimates--which would be driven by overhauling the wholesale 
corporate probability of default model and discontinuing the 
macroeconomic regression approach for operational risk loss estimation, 
as described further in the Corporate Model and Operational Risk Model 
descriptions. However, the proposed changes to the Pre-provision Net 
Revenue Model would offset these loss reductions. By reducing the 
reliance of net revenue projections on recent outcomes and relying more 
on firm projections of net noninterest income, the projections of net 
revenue would be more consistent with a stress scenario and would 
better align with firms' projections.
[GRAPHIC] [TIFF OMITTED] TP18NO25.037

    Table 3 below provides a separate analysis of estimates of stress 
losses across firm types that are subject to the stress capital buffer 
requirement. The analysis shows the reduction in hypothetical stress 
losses is concentrated at larger firms.
[GRAPHIC] [TIFF OMITTED] TP18NO25.038

IX. Proposed Changes to the Scenario Design Policy Statement

    The Board is also proposing to make several changes to the Scenario 
Design Policy Statement. While many of these proposed changes are 
technical in nature, this section identifies substantive changes and 
requests comment on those proposed changes.
    Question 33: The Board invites comment on all aspects of the 
technical and substantive proposed revisions to the Scenario Design 
Policy Statement. What are the advantages and disadvantages of these 
proposed changes? What would be the advantages and disadvantages if the 
Board were to consider describing the Board's expectations for 
additional components of the scenario design framework?

A. Changes to the Background and Overview and Scope Sections

    The Board is proposing to make limited changes to the first two 
sections of the Scenario Design Policy Statement, which address 
background and overview and scope topics, respectively. In the 
background section, the Board would clarify that the stress tests 
primarily focus on credit risk, operational risk, and market risk. The 
inclusion of operational risk in this list helps clarify the Board's 
continued focus on designing a supervisory tool that makes a valuable 
forward-looking assessment of large financial companies' capital 
adequacy under hypothetical economic and financial market conditions. 
The Board would also clarify that it expects to provide only two 
different sets of macroeconomic scenarios for both the supervisory and 
company-run stress tests. These two sets of macroeconomic scenarios are 
the baseline and severely adverse scenario. This change would clarify 
the quantity of macroeconomic scenarios the Board expects to provide, 
consistent with the removal of a separate adverse scenario.\86\
---------------------------------------------------------------------------

    \86\ 84 FR 59032, 59061 (Nov. 1, 2019).
---------------------------------------------------------------------------

    In the overview and scope section, the Board would make conforming 
edits to the description of the organization of the Scenario Design 
Policy Statement to reflect the changes discussed earlier in this 
proposal.
    Question 34: What additional changes, if any, should the Board 
consider making to these sections, and why? What would be the 
advantages and disadvantages of providing more than two scenarios? What 
are the

[[Page 51877]]

advantages and disadvantages of the Board's continued focus on credit, 
operational, and market risk?

B. Changes to the Content of the Stress Test Scenarios Section

    The Board is proposing to make two general changes to this section, 
which describes the Board's expectations for the content of the 
published stress test scenarios.
    First, as described below, this section would be amended to clarify 
that the Board expects to generally publish two different macroeconomic 
scenarios: the baseline and severely adverse scenarios. This section 
would also be revised to clarify that the Board expects to invite 
comment on severely adverse scenarios.
    Second, as described in Section IX.H of this Supplementary 
Information, the Board is proposing to make certain changes related to 
the global market shock component. See Section IX.H of this 
Supplementary Information for a discussion of those changes.
    Question 35: What additional changes, if any, should the Board 
consider making to these sections, and why?

C. Approach for Formulating Macroeconomic Assumptions in the Baseline 
Scenario

    The Board is proposing to provide additional details describing the 
process by which the Board would set the paths of the variables in the 
baseline and severely adverse scenarios. In particular, the amendments 
reflect that the Board would post on the Board's website a description 
of the macroeconomic model utilized to support the construction of the 
baseline and severely adverse scenarios in the annual stress test. By 
posting a description of this model (the ``macroeconomic model for 
stress testing'') on the Board's website, the Board expects to improve 
the transparency, public accountability, and predictability around the 
Board's scenario design framework, particularly with respect to the 
baseline scenario and certain variables in the severely adverse 
scenario. The Board recognizes that, while these enhancements are 
consistent with the Board's goal of increased transparency in the 
supervisory stress test, they may constrain the design of the scenario 
paths for some variables to follow those prescribed by the 
macroeconomic model for stress testing. Nevertheless, the Board expects 
that other aspects of the proposed changes to the Scenario Design 
Policy Statement will preserve sufficient flexibility to allow the 
Board to adjust the severity of the annual scenario based on relevant 
indicators of economic and financial conditions and other emergent 
procyclical factors. Importantly, the Board uses these models to 
generate paths for the scenario variables only. These models are used 
solely for stress testing purposes and the output is not a forecast of 
the Board.
    Question 36: What are the advantages and disadvantages of adopting 
a macroeconomic model for stress testing to guide the selection of 
certain variables in the baseline and severely adverse scenarios?
    Question 37: What additional changes, if any, should the Board 
consider making to this section, and why?

D. Scenario Narrative: Refinement to the Recession Approach

    A number of considerations contribute to the Board's formulation of 
the severely adverse scenario. As a starting point, the basic approach 
adopted by the Board is the recession approach--the notion that the 
Board will construct a scenario informed by the historical paths of 
macroeconomic and financial market variables across post-war U.S. 
recessions. However, different recessions have differed in important 
respects, and a simple recreation of a given episode or an average over 
all recessions would fail to reproduce important potential stressors to 
firms' balance sheets. Hence, in applying the recession approach, the 
Board develops a specific narrative characterizing the hypothetical 
recession represented by the scenario to help inform the specific paths 
for scenario variables. This narrative combined with data are then 
modified to account for the Board's stress testing principle of 
conservatism alongside other considerations offered by the literature 
on stress testing including a goal to develop sufficient severity and 
credibility of the scenarios, and a goal to not add sources of 
procyclicality to the financial system, as described below.\87\ This 
section gives an overview of these considerations and other details, 
providing a common structure for the discussion outlined in the guides 
for individual variables under this framework, in Section IX.G of this 
Supplementary Information.
---------------------------------------------------------------------------

    \87\ 12 CFR 252, Appendix B.
---------------------------------------------------------------------------

The Recession Approach
    The Board intends to continue to use a recession approach to 
develop the severely adverse scenario. Under the recession approach, 
the Board expects to specify the future paths of variables to reflect 
conditions that characterize post-war U.S. recessions, generating 
either a typical or specific recreation of a post-war U.S. recession. 
The Board chose this approach in developing past scenarios, and in the 
Scenario Design Policy Statement, because it has observed that the 
conditions that typically occur in recessions--such as increasing 
unemployment, declining asset prices, and contracting loan demand--can 
put significant stress on firms' balance sheets. This stress can occur 
through a variety of channels, including higher loss provisions due to 
increased delinquencies and defaults, losses on trading positions 
through sharp moves in market prices, and lower bank income through 
reduced loan originations. For these reasons, the Board expects that 
the paths of economic and financial variables in the severely adverse 
scenario should, at a minimum, resemble the paths of those variables 
observed during a recession. The guide for each variable in this 
framework reviews the movements of that variable across past recessions 
and bases the formulation of its scenario path on that analysis. While 
the recession approach provides a starting point for the formulation of 
the scenario, recessions are not all the same. The length and depth of 
recessions differ, as do the parts of the economy and financial markets 
that are most affected, so the Board must include other considerations 
in its scenario design.
The Scenario Narrative
    Because recessions have differed in cause, character, and 
consequence--from oil price shocks and housing slumps to asset-price 
busts and pandemics, from short to long, and from mild to moderate to 
severe--the Board augments the basic recession approach with an annual 
scenario narrative. The annual scenario narrative provides qualitative 
direction on how the Board builds that year's severely adverse 
scenario.
    While some specifics of the narrative may be adjusted on a year-to-
year basis to reflect developments in the macroeconomic and financial 
environment, the overall narrative motivating scenario design will be 
that of a sharp recession triggered by an adverse shock to financial 
markets. Under the proposal, the Board expects that the macroeconomic 
scenario used in the Board's annual supervisory severely adverse 
scenario will begin with a sudden and significant increase in 
uncertainty and associated rapid deterioration in risk appetite that 
cause a spike in financial market volatility and a sharp decline in 
many U.S. and

[[Page 51878]]

foreign financial assets. The resulting turmoil would disrupt funding 
markets and lead to widespread deleveraging, including forced sales of 
illiquid assets at fire sale prices by a range of financial firms and 
some temporary breakdowns in the typical correlations between financial 
asset prices. (Such sharp changes in financial conditions have been 
observed previously in response to the outbreak of COVID-19 or regional 
wars, the failure or distress of a large financial institution, or 
sudden shifts in the economic policies in advanced economies.)
    Under the Board's recession approach, the Board expects that, 
although financial market functioning returns to normal within a few 
months of the initial shock, uncertainty remains high and risk appetite 
remains low for an extended period. The sustained flight to quality 
would be expected to push down risk-free interest rates but keep credit 
conditions tight and financial asset prices depressed for several 
quarters. The market dysfunction would cause a contraction in the 
supply of credit from other types of financial intermediaries that 
would create demands on banks to provide substantial liquidity to 
existing customers with formal credit lines. Banks would also make ad 
hoc decisions to support customers without formal arrangements when 
doing so could lead to lower losses on their existing loans.\88\ This 
shift in demand for credit toward banks from other financial 
intermediaries would lead to banks' balance sheets remaining constant 
even as overall credit demand declines.\89\ This feature of the 
scenario is supported by the stress testing principle of 
conservatism.\90\ To that end, maintaining higher capital requirements 
during periods of economic expansion ensures that stress tested firms 
employ sufficient capital to absorb losses and support the economy 
during a downturn.
---------------------------------------------------------------------------

    \88\ For example, in June 2020 the Federal Financial 
Institutions Examination Council issued interagency guidance to bank 
examiners stating, ``examiners will not subject a . . . modified 
loan to adverse classification solely because the value of the 
underlying collateral has declined . . ., provided that the borrower 
has ability to repay . . .'' See Interagency COVID-19 Examiner 
Guidance, <a href="https://www.federalreserve.gov/newsevents/pressreleases/files/bcreg20200623a1.pdf">https://www.federalreserve.gov/newsevents/pressreleases/files/bcreg20200623a1.pdf</a>.
    \89\ Commercial and industrial loans grew 20 percent in 2007 as 
credit markets seized at the beginning of the 2007-2009 financial 
crisis. See M. Bech & Tara Rice, Profits and Balance Sheet 
Developments at U.S. Commercial Banks in 2008, 95 Fed. Rsrv. Bull. 
A57-97 (2009), <a href="https://www.federalreserve.gov/pubs/Bulletin/2009/articles/bankprofit/default.htm">https://www.federalreserve.gov/pubs/Bulletin/2009/articles/bankprofit/default.htm</a>. For COVID-19, see H. Ennis & A. 
Jarque, Bank Lending in the Time of COVID, Federal Reserve Bank of 
Richmond Economic Brief No. 21-05 (Feb. 2021).
    \90\ 12 CFR 252, Appendix B.
---------------------------------------------------------------------------

    In the scenario, the news from financial markets would cause near-
immediate decisions by consumers to curtail spending and by businesses 
to cut payroll and cancel planned investments, leading to a demand-
driven contraction in economic activity putting downward pressure on 
inflation. The initial disruption to spending and employment along with 
tightening credit conditions would trigger a negative feedback loop 
that results in further declines in payrolls, investment, and spending 
in subsequent quarters. With businesses shrinking or failing in the 
scenario, demand for commercial real estate would decrease 
significantly relative to supply, leading to large declines in 
commercial property prices. Meanwhile, rising household financial 
distress would lead to increased supply of homes for sale and reduced 
household formation, which would depress residential real estate 
markets.
    The financial market dysfunction and deepening recession in the 
United States would spill over to its major trading partners, including 
the euro area, United Kingdom, Japan, and Developing Asia. Those areas 
would experience declines in economic activity commensurate with the 
global slowdown running from 2008 to 2010. Consistent with existing 
stress testing principles, this scenario assumes that permanent 
government stabilization programs (e.g., unemployment insurance) and 
monetary policy in the United States and elsewhere would function 
normally, but that there would be no extraordinary measures taken by 
fiscal or financial authorities to support the economy or financial 
markets during this time. The specific implications of this narrative 
for scenario variables are detailed in each guide, but the narrative 
interacts importantly with the recession approach: financial recessions 
often exhibit different properties than other recessions, as they are 
often steeper, deeper, and more drawn-out than typical, non-financial 
recessions.\91\ Adopting this scenario narrative reflects a principle 
of conservatism, and is in line with recommendations from the stress 
testing literature, as discussed in Section IX.F of this Supplementary 
Information.
---------------------------------------------------------------------------

    \91\ See, e.g., C. Reinhart & K. Rogoff, This Time Is Different: 
Eight Centuries of Financial Folly (2009).
---------------------------------------------------------------------------

    Question 38: The Board invites comment on all aspects of how the 
Board designs the scenario narrative in the annual stress test. What 
are the advantages and disadvantages of adopting this financial 
recession approach? What other approaches, if any, should the Board 
consider adopting, and why? What adjustments, if any, to the financial 
recession approach should the Board consider adopting, and why?
Adding Salient Risks to the Severely Adverse Scenario
    Consistent with the Scenario Design Policy Statement, under this 
proposal, the Board expects that the severely adverse scenario would be 
developed to reflect the current level of vulnerabilities or risks to 
the banking sector that are apparent in relevant indicators of economic 
and financial conditions. The Board anticipates that the proposed 
guides for certain scenario variables described below provide an 
appropriate range of values to design the severely adverse scenario in 
most years. The waxing and waning of relevant indicators of economic 
and financial conditions will inform the Board's decisions about where 
to set the value of those parameters within those ranges for each 
variable.
    The Board continues to expect that there will be some important 
instances when it will be appropriate to augment the recession approach 
with salient risks and to set variables values inside of, and in some 
cases, outside of the ranges and values provided in the guides in the 
Scenario Design Policy Statement. As a result, each year, the Board 
will consider particular risks to the financial system and to the 
domestic and international macroeconomic outlook identified by its 
economists, bank supervisors, and financial market experts. The Board, 
using its internal analysis and supervisory information and in 
consultation with the Federal Deposit Insurance Corporation and the 
Office of the Comptroller of the Currency, will then determine whether 
any of those risks appear significantly more elevated than usual or, 
conversely, whether risks are unusually low at a particular time, such 
that they cannot be appropriately reflected by choosing values within 
the ranges of the proposed guides. In those cases, which it expects to 
be infrequent, the Board will make appropriate adjustments to the paths 
of specific economic variables. These adjustments will not always be 
reflected in the general severity of the recession and, thus, all 
macroeconomic variables; rather, the adjustments will sometimes apply 
to a subset of variables to reflect co-movements in these variables 
that are historically less typical.
    To assist the public in assessing the use of salient risks in the 
scenario, the Board considered the following examples. A stress test 
initiated in a

[[Page 51879]]

period of unusually high uncertainty and rapid deterioration in 
economic and financial conditions, such as the first quarter of 2009 or 
the first quarter of 2020, likely would prove challenging for the 
ranges in this proposed framework. In each case, the prevailing 
conditions made it plausible that key variables would settle beyond the 
range of their previous peak or trough values, on which the guides for 
the variables in the severely adverse scenario are calibrated. Although 
the unemployment guide remained flexible enough to respond to the spike 
in the unemployment rate to nearly 15 percent during the first months 
of the COVID-19-related business closures in 2020, the paths of other 
variables may have needed to be adjusted more severely if the economy 
had not recovered as quickly as it did.
    As another example, the Board may become increasingly concerned 
about vulnerabilities related to a particular asset class that was 
experiencing rapid and persistent price increases supported by 
increasingly leveraged investors. Those circumstances existed in the 
housing market in the early 2000s and may have tested the credibility 
of a guide framework based solely on past performance of home prices, 
given that up until then, the price index for homes the Board uses for 
stress testing had rarely experienced a decline.\92\
---------------------------------------------------------------------------

    \92\ The Board uses the Price Index for Owner-Occupied Real 
Estate, Z.1 Release (Financial Accounts of the United States), 
Federal Reserve Board (series FL075035243.Q).
---------------------------------------------------------------------------

    Sometimes, the salient risk may arise within an asset class. The 
Board most recently incorporated this type of salient risk in the 2024 
stress test scenario. That year, the Board noted unusually high 
vulnerabilities in types of commercial properties that could be most at 
risk for a sustained drop in income and asset values due to the 
prevalence of remote work.\93\
---------------------------------------------------------------------------

    \93\ See Board, 2024 Stress Test Scenarios, ``Additional Key 
Features of the Severely Adverse Scenario,'' at 12-13 (Feb. 2024), 
<a href="https://www.federalreserve.gov/publications/files/2024-stress-test-scenarios-20240215.pdf">https://www.federalreserve.gov/publications/files/2024-stress-test-scenarios-20240215.pdf</a>.
---------------------------------------------------------------------------

    The Board is proposing two changes to its consideration of salient 
risks in the severely adverse scenario. First, the Board would remove 
paragraph 4.2.4(d) from the Scenario Design Policy Statement. Removing 
this paragraph could help improve the transparency of the scenario 
design process by limiting the Board's expectations for considering 
risks of uncertain significance. While this approach would reduce the 
Board's ability to test for emerging and untested risks in the 
financial system through the severely adverse scenario, the Board 
expects that the remaining components of the Board's supervisory stress 
test should be sufficient to establish a credible severely adverse 
scenario.
    Second, where the Board does consider salient risks in designing 
the severely adverse scenario, the Board will endeavor to disclose and 
explain the Board's reasoning in the Board's publication of the annual 
stress test scenarios, and subsequently adjust those aspects of the 
scenario, if necessary, in response to those comments.
    Question 39: What are the advantages and disadvantages of the 
Board's approach to considering salient risks? What additional or 
alternative approaches, if any, should the Board consider for the 
consideration of salient risks? What additional or alternative 
circumstances should the Board take into account when evaluating 
whether to consider salient risks, if any?

E. Changes to Construction of Certain Variables in the Severely Adverse 
Scenario

    As noted above, the Board finalized changes to the Scenario Design 
Policy Statement in 2019 that established a guide that it would use in 
setting the size of the maximum change in the unemployment rate and the 
timing of its peak. The Scenario Design Policy Statement also 
introduced a guide to govern the size of the maximum decline in house 
prices in the severely adverse scenario. This proposal maintains those 
features of the guides for those two variables, introduces guides that 
will be used to set the changes in the values, and the timing of those 
changes, for more variables in the severely adverse scenario, and 
provides additional context for the path of each variable before it 
reaches the maximum change. In addition, the Board is separately 
disclosing a specific macroeconomic model that it proposes to use to 
translate the paths of certain variables that are set using the 
proposed guides into internally consistent projections for the 
remaining variables, such as the 3-month Treasury bill rate, GDP, 
Disposable Personal Income (DPI), and inflation.
    In addition to updating existing guides for the unemployment rate 
and house prices, the Board is proposing to establish a guide for each 
of the following variables: equity prices; the VIX index; 5-year 
Treasury yields; 10-year Treasury yields; BBB corporate bond yields; 
mortgage rates; commercial real estate prices; and certain 
international scenario values. These include all but one of the 
remaining financial market variables typically included in the domestic 
severely adverse scenario disclosure each year (the exception being the 
3-month Treasury bill rate, as discussed below).
    The Board uses guides to inform its determination of the behavior 
of these financial market variables in the severely adverse scenario, 
rather than model predictions, for several reasons. Although the 
parameters of the guides are calibrated based on an analysis of 
historical changes in those variables during recessions and the 
resulting set of scenario paths typically would be consistent with 
historical co-movements in those variables, using explicit forward-
looking models of these variables to determine scenario paths would be 
inconsistent with several stress testing principles, such as simplicity 
and transparency, as described below.
    Under a model-driven approach to determine the paths of these 
variables, each model would require the Board to identify, design, 
test, explain, and publish additional assumptions, variables, formulas, 
and parameters that would drive the results of the model. Models of 
financial market variables can be particularly unreliable during 
periods of severe stress like the environment envisioned by the 
hypothetical severely adverse scenario.\94\ Thus, the model-driven 
approach to determining these variables would contrast with the stress 
testing principle of using simpler and more transparent approaches, 
where appropriate.
---------------------------------------------------------------------------

    \94\ T.C. Green & S. Figlewski, Market Risk and Model Risk for a 
Financial Institution Writing Options, 54 J. Fin. 1465-99 (Dec. 
1999).
---------------------------------------------------------------------------

    The Board believes that the guide-based approach also better 
achieves the stress testing principle of using a stable process that is 
reliably able to capture the impact of economic stress. These simple, 
transparent guides also will allow the Board to use its judgment at 
times when it is necessary to account for conditions that are plausible 
even if they have not been observed previously, consistent with the 
stress testing principle of conservatism. Finally, the guides better 
preserve the Board's ability to adjust the severity of the stress test 
to avoid adding to procyclical forces, when doing so is appropriate and 
consistent with fostering financial stability. The Board's judgment 
about the appropriateness of the annual stress test scenarios will 
reflect changes in the specific risks or vulnerabilities that the 
Board, in consultation with the other federal banking agencies, 
determines should be considered in the annual stress tests.\95\
---------------------------------------------------------------------------

    \95\ See 84 FR 6651, 6656 (Feb. 28, 2019).

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[[Page 51880]]

    The paths for the remaining variables in the domestic scenario--
GDP, DPI, inflation, and the 3-month Treasury rate--will be informed by 
the Board's macroeconomic model for stress testing.\96\ In contrast to 
the guide-based approach described above for certain variables, the 
Board uses a model-driven approach for these remaining variables 
because they are particularly suited to model projections that are 
simple to produce and explain. As explained in the model documentation 
available on the Board's website, that model uses a set of well-studied 
longer-run economic relationships that have proven to be useful in a 
variety of economic conditions and modeling frameworks. These include 
Okun's Law, a Phillips Curve, and an inertial Taylor Rule.\97\ The 
Board acknowledges that increasing the predictability of the paths of 
scenario variables in this way could reduce the dynamism of the stress 
test or incent firms to optimize their portfolios in ways that reduce 
capital requirements, perhaps without a commensurate reduction in risk. 
However, the guides and the model are constructed to remain flexible 
enough to ensure that the Board can adjust the severely adverse 
scenario to capture emerging risks and changes in the level of systemic 
risk since the previous stress test in a timely fashion. This 
flexibility includes the ability to increase scenario severity when 
systemic risks may have built up during robust economic expansions or 
periods when risk appetite is high or to avoid adding sources of 
procyclicality through the stress test. The proposal continues to 
ensure that the scenarios maintain a minimum severity level, even when 
economic and financial conditions are strained. Setting a floor for the 
severity of the scenario is appropriate because risks that built up 
during an economic expansion can persist at financial intermediaries 
during downturns and because firms that are under stress sometimes take 
imprudent risks that they believe will facilitate recovery.\98\
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    \96\ This approach is consistent with how the Board has designed 
recent stress test scenarios. See id. at 6659.
    \97\ See <a href="https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm">https://www.federalreserve.gov/supervisionreg/dfa-stress-tests-2026.htm</a>.
    \98\ See J. Peek & E. Rosengren, Unnatural Selection, Perverse 
Incentives and the Misallocation of Credit in Japan, 95 Am. Econ. 
Rev. 1144-66 (2005).
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    The Board also considered that employing the guides or the 
macroeconomic model for stress testing sometimes may reduce the 
severity of some aspects of the scenario relative to what the currently 
less-constrained scenario design process would achieve, and in other 
cases it may result in higher severity for some aspects of the scenario 
than might otherwise be the case. The flexibility in the guides should 
be sufficient for the Board to account for those eventualities by 
choosing offsetting values across multiple guides that create the 
appropriate overall severity of the scenario.
    Question 40: What are the advantages and disadvantages of using 
guides and the macroeconomic model for stress testing to guide the 
setting of scenario variables in the severely adverse scenario? What, 
if any, alternatives to using a macroeconomic model to set the 
projection paths of other variables should the Board consider?

F. Scenario Design Principles Derived from Stress Testing Literature: 
Severity, Credibility, and Procyclicality

    In designing the guides for the construction of the severely 
adverse scenario presented in this framework, the Board is informed by 
the stress testing literature, which provides certain principles for 
scenario design,\99\ which are also reflected in the Board's Stress 
Testing Policy Statement.\100\ First, the literature emphasizes the 
need for adequately severe scenarios, even when the economy and 
financial system are in a stressed condition--complementing the Board's 
principle of conservatism.\101\ Second, the literature offers insights 
on how historical data should inform the design of an adequately severe 
scenario, augmenting the Board's recession approach. Third, the 
literature highlights the need for stress tests to avoid adding to 
other sources of procyclicality in the financial system. In explaining 
the paths for variables in the severely adverse scenario, the guides 
provide specific applications of these principles, while this 
introduction provides an overview of their general meaning and 
rationale.
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    \99\ Some of the well-known contributions are T. Schuermann, 
Stress Testing Banks, 30 International Journal of Forecasting 717-28 
(2014) (``Schermann (2014)''); and N. Liang, Well-Designed Stress 
Test Scenarios Are Important for Financial Stability, Brookings 
Institution Paper (Feb. 2, 2018) (``Liang (2018)''), <a href="https://www.brookings.edu/articles/well-designed-stress-test-scenarios-are-important-for-financial-stability">https://www.brookings.edu/articles/well-designed-stress-test-scenarios-are-important-for-financial-stability</a>.
    \100\ See 12 CFR 252, Appendix B.
    \101\ Id.
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    The first principle derived from the literature concerns the need 
for sufficiently severe scenarios. Plainly, insufficient stress test 
severity can lead to adverse outcomes. Inadequately assessed risks lead 
to an underassessment of the associated credit losses and capital 
needs--the basic source of failures of many financial institutions 
during the 2007-2009 financial crisis which the Board's stress tests 
are meant to avoid. Frame et al. (2015) provide an in-depth analysis of 
how the assessment of risks (or stress test) conducted by the Office of 
the Federal Housing Enterprise Oversight (OFHEO) actually contributed 
to the failures of the Federal National Mortgage Association (Fannie 
Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac).\102\ 
Importantly, stress tests must be adequately severe both in good times 
and in bad.
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    \102\ See S. Frame, C. Gerardi, & P. Willen, The Failure of 
Supervisory Stress Testing: Fannie Mae, Freddie Mac, and OFHEO, 
Federal Reserve Bank of Boston Working Paper No. 15-4 (2015), 
<a href="https://www.bostonfed.org/publications/research-department-working-paper/2015/the-failure-of-supervisory-stress-testing-fannie-mae-freddie-mac-and-ofheo.aspx">https://www.bostonfed.org/publications/research-department-working-paper/2015/the-failure-of-supervisory-stress-testing-fannie-mae-freddie-mac-and-ofheo.aspx</a>. OFHEO was the federal regulator of the 
government-sponsored mortgage agencies, Fannie Mae and Freddie Mac.
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    In the context of stress testing during crises, in particular, 
there are additional arguments against insufficient stress test 
severity. Schuermann (2014) and Judge (2022) argue that insufficiently 
severe stress test scenarios can erode credibility and trust and impede 
timely and adequate policy responses to ongoing crisis developments, 
thereby exacerbating a downturn.\103\ Bernanke (2013) also highlights 
that stress tests in times of crisis should provide anxious investors 
with credible information about prospective losses.\104\ This 
literature points to the importance of sufficiently severe scenarios 
for the health of the financial system, including by maintaining 
credibility with the public and financial markets.
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    \103\ K. Judge, ``Stress Testing During Times of War,'' Handbook 
of Financial Stress Testing (2022) (``Judge (2022)'').
    \104\ B. Bernanke, ``Stress testing banks: What have we 
learned?,'' Speech at the ``Maintaining Financial Stability: Holding 
a Tiger by the Tail'' Conference (2013) (``Bernanke (2013)''), 
<a href="http://www.federalreserve.gov/newsevents/speech/bernanke20130408a.htm">www.federalreserve.gov/newsevents/speech/bernanke20130408a.htm</a>.
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    Further evidence for the importance of sufficiently stressful 
scenarios to maintaining public credibility comes from past U.S. stress 
tests. For example, the rapid deterioration in the U.S. economy in 
early 2009 led to realized unemployment rates that approached the peak 
of the unemployment rate path in the severely adverse scenario used for 
the Supervisory Capital Assessment Program (SCAP) in 2009.\105\ In 
fact, the scenario peak for the unemployment rate hypothesized would 
reach only 8.9 percent at the end of 2009, but as of

[[Page 51881]]

March 2009 the unemployment rate measured 8.5 percent and ultimately 
the unemployment rate peaked at 10 percent in October of 2009.\106\ 
Because the results of the SCAP determined the amount of capital that 
firms needed to raise in financial markets or through the Treasury's 
Capital Assistance Program, a scenario that turned out to be 
insufficiently severe could have left some firms undercapitalized and 
failed to achieve the goal of stabilizing the financial system.\107\
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    \105\ See, e.g., E. Andrews & E. Dash, ``Government Offers 
Details of Bank Stress Test,'' N.Y. Times (Feb. 25, 2009), <a href="https://archive.nytimes.com/www.nytimes.com/indexes/2009/02/26/todayspaper/index.html">https://archive.nytimes.com/www.nytimes.com/indexes/2009/02/26/todayspaper/index.html</a>.
    \106\ A similar concern related to insufficient scenario 
severity followed the announcement of the European Union's stress 
tests in 2018, with the criticism that the assumptions were milder 
than conditions in the 2007-2009 financial crisis. See F. Guarascio, 
``EU's 2018 Stress Test too Mild, Spared Weaker States--Auditors'', 
Reuters (Jul. 10, 2019), https://www.reuters.com/article/business/
eus-2018-bank-stress-test-too-mild-spared-weaker-states-auditors-
idUSKCN1U5113/
#:~:text=The%20auditors%20said%20last%20year's,their%20risk%20rather%
20than%20size.
    \107\ An explanation of the synergy between the SCAP and CAP is 
available here: Supervisory Capital Assessment Program & Capital 
Assistance Program (SCAP and CAP), U.S. Department of the Treasury, 
<a href="https://home.treasury.gov/data/troubled-assets-relief-program/bank-investment-programs/scap-and-cap">https://home.treasury.gov/data/troubled-assets-relief-program/bank-investment-programs/scap-and-cap</a>.
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    This example helps demonstrate the importance of the principle of 
severity when considering historical data and current conditions in the 
construction of an adequately severe scenario. While unemployment rates 
are discussed at length in the unemployment guide below, the maximum 
level of 8.9 percent specified in the 2009 SCAP, at the time, was well 
beyond the level reached in most post-war recessions. At the time the 
scenario was issued, a projected increase to 8.9 percent was thus very 
severe compared to outcomes over the past quarter century, but 
nonetheless proved lower than the actual realized peak in 2009.
    That experience reinforces the need for the framework to support 
variable paths that exceed levels observed in the historical data. 
Choosing a historical scenario has a price--``it does not test for 
anything new.'' \108\ While the recession approach dictates that 
variable movements follow historical recessions, when current 
conditions are already extreme, a credible scenario may replicate 
historical recessions in terms of the size of movements previously 
observed, leading to levels of variables that may exceed historical 
levels. Several of the guides in this framework allow, at times, for 
variables to exceed their historical range, either in levels or in 
changes, in order to maintain adequate severity.
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    \108\ See Schuermann (2014), supra note 99.
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    Ultimately, no single scenario can account for all potential 
contingencies. Therefore, the severely adverse scenario used in the 
Board's annual stress test must be sufficiently severe to ensure that 
banks will be resilient to a range of alternative and plausible 
scenarios that could generate net losses that are of similar 
magnitudes.\109\
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    \109\ See Liang (2018), supra note 99.
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    At the same time, the Board recognizes that the severity of the 
annual stress tests potentially can have unintended effects on firms' 
operations. For instance, the academic literature finds that stress 
tests improve financial stability by reducing riskier bank 
lending.\110\ Ensuring that firms are appropriately capitalized for the 
risks they are taking is a goal of stress testing; however, if those 
effects are not well aligned with the true riskiness of a particular 
type of loan, then stress tests could unintentionally reduce banks' 
credit supply. For instance, some evidence exists that counties in 
which stress tested banks had high market share may have experienced a 
lower supply of credit to small and young businesses, which are 
generally considered riskier than established businesses but can 
generate a disproportionate share of growth in employment and 
income.\111\ However, other research concludes that businesses largely 
offset the reduction in loans from banks that participate in the stress 
tests with other sources of credit. Those sources include loans from 
smaller banks not in the stress tests,\112\ debt issuance in capital 
markets, or loans from nonbank financial institutions.\113\ Moreover, 
these potential unintended effects on credit supply by stress tested 
firms must be weighed against the benefits, discussed above, that more 
credible stress tests bring to the economy and the financial system. By 
ensuring that firms have sufficient quantity and quality of loss-
absorbing capital to cover the risks that they are taking, the stress 
tests ensure the resilience and stability of the banking sector even in 
circumstances when stresses take unexpected forms.
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    \110\ V. Acharya, A. Berger, & R. Roman, Lending implications of 
U.S. bank stress tests: Costs or benefits?, 34 J. Fin. 
Intermediation 58-90 (2018).
    \111\ See S. Doerr, Stress Tests, Entrepreneurship, and 
Innovation, 25 Rev. of Fin. 1609-1637 (Sep. 2021), <a href="https://doi.org/10.1093/rof/rfab007">https://doi.org/10.1093/rof/rfab007</a>.
    \112\ See K. Cort[eacute]s et al., Stress tests and small 
business lending, 136 J. Fin. Econ. 260-279 (2021) (``Cort[eacute]s 
(2021)'').
    \113\ See J. Berrospide & R. Edge, Bank capital buffers and 
lending, firm financing and spending: What can be learned from five 
years of stress test results?, 57 J. Fin. Intermediation 1010-61 
(2024) (``Berrospide (2024)''); T. Davydiuk, T. Marchuk, & S. Rosen, 
Direct lenders in the U.S. middle market, 162 J. Fin. Econ. (2024) 
103946 (``Davydiuk (2024)'').
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    The balance of those advantages and disadvantages of scenario 
severity can change over time. Losses at financial institutions are 
more likely to arise when the economy slows. Profits are more robust 
during periods of economic growth, in turn increasing resources 
available to cover future losses. In other words, capital is naturally 
procyclical, having an underlying tendency towards a positive 
correlation with financial conditions. Moreover, when underlying 
conditions are favorable and firm losses are low, firms sometimes 
project forward an expectation for low losses, paving the way to take 
more risk.\114\ Conversely, when conditions are bad, firms may 
overcompensate and restrict credit even to otherwise creditworthy 
borrowers, exacerbating the downturn. Thus, firms' behavior may amplify 
underlying procyclicality.
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    \114\ See A. Berger & G. Udell, The institutional memory 
hypothesis and the procyclicality of bank lending behavior, 13 J. 
Fin. Intermediation 458-495 (2004) (``Berger (2004)''); A. 
Greenspan, ``Challenges facing community banks,'' Remarks before the 
Independent Community Bankers of America (Mar. 8, 2000) (``Greenspan 
(2000)''), <a href="https://www.federalreserve.gov/boarddocs/speeches/2000/20000308.htm">https://www.federalreserve.gov/boarddocs/speeches/2000/20000308.htm</a>.
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    Stress tests could, through different designs, either amplify or 
mitigate this procyclicality. If stress tests are always more severe in 
bad times, despite an expectation that conditions could soon improve, 
then this severity would add undue stress to the financial system, 
reducing financial intermediation with negative implications for the 
macroeconomy. That said, the purpose of the stress test scenarios is 
not to serve as an explicit countercyclical offset to the financial 
system, but rather to ensure that the firms are properly capitalized to 
withstand severe economic and financial conditions. Hence, the Board 
adopts a middle path, seeking to specify the severely adverse scenario 
to avoid adding sources of procyclicality to the financial system, 
neither explicitly mitigating any existing procyclical tendencies nor 
magnifying them. Indeed, Kohn and Liang (2019) argue that the ability 
to adjust elements that potent

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