Notice2026-05555

Self-Regulatory Organizations; Cboe BZX Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Adopt Rules 11.29 and 11.30 Relating the Regulatory and Operations Trading Halts, Integrate Several Definitions and Concepts From the Amended CTA/CQ Plan, Reorganize Existing Rule 11.18, and To Make Conforming Changes to Related Rules

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Published
March 23, 2026

Issuing agencies

Securities and Exchange Commission

Full Text

<html>
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<title>Federal Register, Volume 91 Issue 55 (Monday, March 23, 2026)</title>
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[Federal Register Volume 91, Number 55 (Monday, March 23, 2026)]
[Notices]
[Pages 13873-13883]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-05555]


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SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-105038; File No. SR-CboeBZX-2026-017]


Self-Regulatory Organizations; Cboe BZX Exchange, Inc.; Notice of 
Filing and Immediate Effectiveness of a Proposed Rule Change To Adopt 
Rules 11.29 and 11.30 Relating the Regulatory and Operations Trading 
Halts, Integrate Several Definitions and Concepts From the Amended CTA/
CQ Plan, Reorganize Existing Rule 11.18, and To Make Conforming Changes 
to Related Rules

March 18, 2026.
    Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 
(the ``Act''),\1\ and Rule 19b-4 thereunder,\2\ notice is hereby given 
that on March 6, 2026, Cboe BZX Exchange, Inc. (the ``Exchange'' or 
``BZX'') filed with the Securities and Exchange Commission (the 
``Commission'') the proposed rule change as described in Items I, II, 
and III below, which Items have been prepared by the Exchange. The 
Exchange filed the proposal as a ``non-controversial'' proposed rule 
change pursuant to Section 19(b)(3)(A)(iii) of the Act \3\ and Rule 
19b-4(f)(6) thereunder.\4\ The Commission is publishing this notice to 
solicit comments on the proposed rule change from interested persons.
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    \1\ 15 U.S.C. 78s(b)(1).
    \2\ 17 CFR 240.19b-4.
    \3\ 15 U.S.C. 78s(b)(3)(A)(iii).
    \4\ 17 CFR 240.19b-4(f)(6).
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I. Self-Regulatory Organization's Statement of the Terms of Substance 
of the Proposed Rule Change

    Cboe BZX Exchange, Inc. (the ``Exchange'' or ``BZX'') is filing 
with the Securities and Exchange Commission (``Commission'') a proposal 
to adopt Rules 11.29 and 11.30 to integrate several definitions and 
concepts from the Amended CTA/CQ Plan and to reorganize existing Rule 
11.18 in light of the Exchange's experience with applying the rule 
during its time as a national securities exchange and to make 
conforming changes to related rules. The text of the proposed rule 
change is provided in Exhibit 5.
    The text of the proposed rule change is also available on the 
Commission's website (<a href="https://www.sec.gov/rules/sro.shtml">https://www.sec.gov/rules/sro.shtml</a>), the 
Exchange's website (<a href="https://www.cboe.com/us/equities/regulation/rule_filings/bzx/">https://www.cboe.com/us/equities/regulation/rule_filings/bzx/</a>), and at the principal office of the Exchange.

[[Page 13874]]

II. Self-Regulatory Organization's Statement of the Purpose of, and 
Statutory Basis for, the Proposed Rule Change

    In its filing with the Commission, the Exchange included statements 
concerning the purpose of and basis for the proposed rule change and 
discussed any comments it received on the proposed rule change. The 
text of these statements may be examined at the places specified in 
Item IV below. The Exchange has prepared summaries, set forth in 
sections A, B, and C below, of the most significant aspects of such 
statements.

A. Self-Regulatory Organization's Statement of the Purpose of, and 
Statutory Basis for, the Proposed Rule Change

1. Purpose
    In conjunction with adoption of amended CTA/CQ Plans proposed by 
its participants (``Amended CTA/CQ Plan''),\5\ the Exchange proposes to 
adopt Rules 11.29 and 11.30 to integrate several definitions and 
concepts from the Amended CTA/CQ Plan and to reorganize existing Rule 
11.18 in light of the Exchange's experience with applying the rule 
during its time as a national securities exchange.\6\ Current Rule 
11.18 would be reorganized to include only the Limit Up-Limit Down 
Mechanism.\7\ Proposed Rule 11.29 would be entitled ``Trading Halts'' 
and would set forth the Exchange's authority to halt trading under 
various circumstances. Proposed Rule 11.30 would be entitled ``Trading 
Halts Due to Extraordinary Market Volatility'' and would contain the 
rule text related to Market-Wide Circuit Breakers currently codified in 
Rule 11.18(a)--(d), (g)--(j). In addition, the Exchange is updating 
cross references in other rules that are affected by the proposed 
changes and making non-substantive formatting changes in related 
rules.\8\
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    \5\ On February 23, 2021, the participants of the CTA/CQ Plans 
filed Amendment 36 to the CTA Plan and Amendment 27 to the CQ Plan, 
to revise provisions governing regulatory and operational halts. See 
Letter from Robert Books, Chairman, Operating Committee, CTA/CQ 
Plans, to Vanessa Countryman, Secretary, Securities and Exchange 
Commission, dated February 3, 2021. The SEC approved the amendments 
on May 28, 2021. See Securities Exchange Act Release No. 34-92070 
(May 28, 2021), 86 FR 29849 (June 3, 2021) (SR-CTA/CQ-2021-01). The 
Amended CTA/CQ Plans includes provisions requiring participant self-
regulatory organizations (``SROs'') to honor a Regulatory Halt 
declared by the Primary Listing Market. The provisions in the CTA/CQ 
Plans, and the plan for consolidation of data for NASDAQ-listed 
securities, The Joint Self-Regulatory Organization Plan Governing 
The Collection, Consolidation and Dissemination of Quotation and 
Transaction Information For NASDAQ-Listed Securities Traded on 
Exchanges on an Unlisted Trading Privilege Basis (``UTP Plan''), 
include provisions similar to the changes proposed by the Exchange 
in this filing.
    \6\ The Exchange notes that it is a participant of the 
transaction reporting plan governing Tape B securities. Each 
transaction reporting plan has a securities information processor 
(``SIP'') responsible for consolidation of information for the 
plan's securities, pursuant to Rule 603 of Regulation NMS. The 
transaction reporting plans for BZX-listed securities are known as 
the ``Consolidated Tape System and Consolidated Quotations System 
Plan (collectively, the ``CTA/CQ Plans''). Pursuant to the CTA/CQ 
Plans, the Securities Industry Automation Corporation (``SIAC'') 
consolidates order and trade data from all markets trading BZX-
listed securities. The Exchange uses the term ``CTA/CQ SIP'' herein 
when referring specifically to the SIP responsible for consolidation 
of information in BZX-listed securities.
    \7\ See Securities Exchange Act Release No. 88704 (April 21, 
2020), 85 FR 23383 (April 27, 2020) (File No. 4-631) (approving the 
Twentieth Amendment to the National Market System Plan to Address 
Extraordinary Market Volatility).
    \8\ The Exchange notes that this proposed rule change is based 
on a similar rule change filed by the NYSE Arca, Inc. (``Arca'') 
that was approved by the SEC in 2025. See Securities Exchange Act 
Release No. 103476 (July 16, 2025), 90 FR 34314 (July 21, 2025), SR-
NYSEARCA-2025-50. In addition, the Exchange's affiliate exchanges, 
Cboe BYX Exchange, Inc. (``BYX''), Cboe EDGA Exchange, Inc. 
(``EDGA''), and Cboe EDGX Exchange, Inc. (``EDGX''), which do not 
operate Primary Listing Markets will file similar rule changes. 
Several exchanges that do not operate Primary Listing Markets have 
also filed similar rule changes. See Securities Exchange Act Release 
No. 96574 (December 22, 2022), 87 FR 80213 (December 29, 2022), SR-
PHLX-2022-49; Securities Exchange Act Release No. 97093 (March 9, 
2023), 88 FR 16045 (March 15, 2023), SR-PEARL-2023-11; and 
Securities Exchange Act Release No. 97824 (June 29, 2023), 88 FR 
43159 (July 6, 2023), SR-MEMX-2023-11.
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Background
    The Exchange has been working with other SROs to establish common 
criteria and procedures for halting and resuming trading in equity 
securities in the event of regulatory or operational issues. These 
common standards are designed to ensure that events which might impact 
multiple exchanges are handled in a consistent manner that is 
transparent. The Exchange believes that implementation of these common 
standards will assist the SROs in maintaining fair and orderly markets. 
Notwithstanding the development of these common standards, the Exchange 
will retain discretion in certain instances as to whether and how to 
handle halts, as is described below.
    Every U.S.-listed equity security has its primary listing on a 
specific stock exchange that is responsible for a number of regulatory 
functions (``Primary Listing Market'').\9\ These include confirming 
that the security continues to meet the exchange's listing standards, 
monitoring trading in that security and taking action to halt trading 
in the security when necessary to protect investors and to ensure a 
fair and orderly market. While these core responsibilities remain with 
the primary listing venue, trading in the security can occur on 
multiple exchanges that have unlisted trading privileges for the 
security \10\ or in the over-the-counter market, regulated by the 
Financial Industry Regulatory Authority, Inc. (``FINRA''). The 
exchanges and FINRA are responsible for monitoring activity on the 
markets over which they have oversight, but also must abide by the 
regulatory decisions made by the Primary Listing Market. For example, a 
venue trading a security pursuant to unlisted trading privileges must 
halt trading in that security during a Regulatory Halt, which is a 
defined term under the proposed rules,\11\ and may only trade the 
security once the Primary Listing Market has cleared the security to 
resume trading.
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    \9\ The Exchange is proposing to adopt Primary Listing Market as 
a new term, defined in the CTA/CQ Plan, Section XI(a)(i)(H), as 
follows: ``[T]he national securities exchange on which an Eligible 
Security is listed. If an Eligible Security is listed on more than 
one national securities exchange, Primary Listing Market means the 
exchange on which the security has been listed the longest.''
    \10\ In addition, securities may also be listed on the New York 
Stock Exchange or the Nasdaq Stock Market (``dually listed''). See 
Rules 14.1(a)(7), 14.3(d) and Interpretation and Policy .01 
thereunder.
    \11\ See proposed Rule 11.29(a)(12).
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    All SROs have rules that require them to honor a Regulatory Halt. 
The Exchange, as a Primary Listing Market, also has rules outlining the 
circumstances in which it will halt trading in its listed securities, 
including situations in which such halts are for regulatory purposes--
and therefore are applicable to all markets trading the security--or 
for operational purposes, which would not halt trading on other 
markets.\12\ However, the trading halt rules are not consistent across 
SROs. Consequently, events that might constitute a Regulatory Halt for 
securities listed on one Primary Listing Market theoretically might not 
be grounds for a Regulatory Halt in securities listed on another 
Primary Listing Market. Such inconsistency among exchange rules could 
lead to confusion in circumstances such as a cross-market event, 
including, for example ``Extraordinary Market Activity.'' \13\
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    \12\ See e.g., Rules 11.1(c), 11.18, and 14.6.
    \13\ The proposed definition of Extraordinary Market Activity 
encompasses a market event that affects multiple markets. See 
proposed Rule 11.29(a)(2) (incorporating by reference Amended CTA/CQ 
Plan, Section XI(a)(i)). Thus, such cross-market events could be 
considered Extraordinary Market Activity.

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[[Page 13875]]

    While the existing rule generally has worked as intended to afford 
the Exchange authority to initiate a Regulatory Halt in appropriate 
cases, the Exchange proposes to amend its rules to conform to the 
Amended CTA/CQ Plan.
    The complex and interconnected market structure in the United 
States also relies on consolidated market data processed and 
disseminated by the SIPs. In certain circumstances, the loss of this 
information or issues with the accuracy or timeliness of the 
information might cause a Primary Listing Market to determine that a 
trading halt is appropriate. The Exchange believes that providing 
further guidance in its rules will assist market participants in better 
understanding how various scenarios could be handled.
    As noted above, the proposed changes that would be uniformly 
applied across SROs are those that relate to cross-market events as set 
forth in the Amended CTA/CQ Plan. However, there will still be 
situations where personnel at the Primary Listing Market will need to 
determine the impact of the cross-market event on the securities listed 
on its market and use discretion in deciding whether to halt trading in 
some or all securities during a cross-market event that affects 
securities listed on different markets. In making a determination as to 
whether to declare a Regulatory Halt, the Primary Listing Market will 
consider the totality of information available concerning the severity 
of the issue, its likely duration, and potential impact on Members \14\ 
and other market participants, and it will make a good-faith 
determination that the criteria for declaring a Regulatory Halt have 
been satisfied and that a Regulatory Halt is appropriate. Moreover, the 
Primary Listing Market will consult, if feasible, with the affected 
Trading Center(s), other Plan Participants, or the Processor, as 
applicable, regarding the scope of the issue and what steps are being 
taken to address the issue. Once a Regulatory Halt has been declared, 
the Primary Listing Market would continue to evaluate the circumstances 
to determine when trading may resume in accordance with its rules.
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    \14\ See Rule 1.5(n). The term ``Member'' shall mean any 
registered broker or dealer that has been admitted to membership in 
the Exchange.
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    While the Exchange and the other SROs intend to harmonize certain 
aspects of their trading halt rules, other elements of the rules will 
continue to be unique to each market. The Exchange believes that this 
is appropriate to reflect different products listed or traded on each 
market and the unique relationship of the Primary Listing Market to its 
listed companies. It is anticipated that these unique rules would most 
likely be invoked in cases where the Primary Listing Market's decision 
on whether to institute a Regulatory Halt turns on specific information 
related to an individual security or issuer, such as the dissemination 
of material news and the issuer's ability to meet listing standards, 
rather than broader market issues stemming from Extraordinary Market 
Activity or loss of consolidated market data from a SIP.
    In addition to the changes noted above, the Exchange proposes non-
substantive changes to modify certain rules that cross reference 
existing Rule 11.18 in order to reflect proposed Rules 11.29 and 11.30. 
The Exchange will implement all of the changes proposed herein in 
conjunction with other SROs implementing the necessary rule changes. 
The Exchange will publish a Trade Desk Notice at least 30 business days 
prior to implementing the proposed changes.
Proposed Exchange Rule Changes
    The Exchange proposes to introduce Rule 11.29 and Rule 11.30 to 
integrate several definitions and concepts from the Amended CTA/CQ Plan 
and to reorganize existing Rule 11.18 in light of the Exchange's 
experience with applying the rule during its time as a national 
securities exchange. Proposed Rule 11.29 would be entitled ``Trading 
Halts'' and would set forth the Exchange's authority to halt trading 
under various circumstances. Proposed Rule 11.30 would be entitled 
``Trading Halts Due to Extraordinary Market Volatility'' and would 
contain the rule text related to Market-Wide Circuit Breakers currently 
codified in Rule 11.18(a)-(d), (g)-(j). The Exchange proposes to re-
name current Rule 11.18 as ``Limit Up-Limit Down Mechanism'' and 
renumber the existing rule text related to the Limit Up-Limit Down 
Mechanism following the removal of the rule text related to Market-Wide 
Circuit Breakers. In addition, the Exchange is updating cross 
references in other rules that are affected by the proposed changes and 
making non-substantive formatting changes in related rules.
Definitions
    The Exchange proposes adding a definitions section as Rule 11.29(a) 
to consolidate the various definitions that will be used in the Rule, 
some of which are taken from the Amended CTA/CQ Plan. The Exchange is 
adopting the following terms from the Amended CTA/CQ Plan: 
``Extraordinary Market Activity,'' ``Material SIP Latency,'' 
``Operating Committee,'' ``Operational Halt,'' ``Primary Listing 
Market,'' ``Processor,'' \15\ ``Regulatory Halt,'' ``Trading Center,'' 
``SIP Halt,'' ``SIP Halt Resume Time,'' ``SIP Outage,'' ``Limit Up 
Limit Down'' and ``Market-Wide Circuit Breaker.'' The definitions of 
``After Hours Trading Session,'' ``Pre-Opening Session,'' ``Regular 
Trading Hours,'' ``UTP Security,'' and ``UTP Derivative Security'' are 
currently defined in Rules 1.5(c), (r), (w), and (ee), respectively, 
and have been cross-referenced in the definitions section.\16\ The 
Exchange also proposes to adopt a definition for ``Derivative 
Securities Products'' that is unique to proposed Rule 11.29.
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    \15\ The Exchange proposes to also define the term ``SIP'' to 
have the same meaning as the term ``Processor'' as set forth in the 
Amended CTA/CQ Plan. Because the terms ``Processor'' and ``SIP'' are 
also used throughout the Rules, at time, to apply to processors of 
information furnished pursuant to the Nasdaq UTP Plan (``UTP 
Plan''), the term ``Processor'' may, in those applicable 
circumstances, refer to the processor of transactions in Tape C 
securities, as set forth in the UTP Plan.
    \16\ As noted above, the Exchange is adopting several new terms 
that have the same meaning as those terms are defined in the Amended 
CTA/CQ Plans. Each of the national market system plans governing the 
single plan processors have identical definitions of these terms, 
thus there will be uniformity in the meaning of the terms among such 
plans as well as among the rules of the SROs.
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    First, the Exchange proposes to add the definition of ``Primary 
Listing Market'' \17\ to Rule 11.29(a), which will have the same 
meaning as in the Amended CTA/CQ Plan, Section XI(a)(i)(H). As is 
currently the case under Rule 14.3, Interpretation and Policy .01 and 
under the Amended CTA/CQ Plan, all Regulatory Halt decisions are made 
by the market on which the security has its primary listing. This 
reflects the regulatory responsibility that the Primary Listing Market 
has for fair and orderly trading in the securities that list on its 
market and its direct access to its listed companies, which are 
required to advise it of certain events and maintain lines of 
communication with the Primary Listing Market. The proposed definition 
makes clear that if a security is listed on more than one market (a 
dually-listed security), the Primary Listing Market means the exchange 
on which the security has been listed the longest. This provision 
matches the language used in the definition of ``Primary Listing 
Exchange'' in the Limit Up-Limit Down Plan and will avoid conflict in 
the event of dually-listed securities.
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    \17\ See proposed Rule 11.29(a)(10).
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    Second, the Exchange proposes to add a definition for the term 
``Extraordinary Market Activity'' as found in Section

[[Page 13876]]

XI(a)(i)(A) of the Amended CTA/CQ Plan.\18\ The Exchange notes that the 
three scenarios included in the proposed new definition would not be 
exhaustive. This enables the Primary Listing Market to act in the best 
interests of the market when confronted with unexpected events. 
However, the Exchange believes that the three scenarios included in the 
rule cover many of the events that are most likely to occur.
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    \18\ ``Extraordinary Market Activity'' means a disruption or 
malfunction of any electronic quotation, communication, reporting, 
or execution system operated by, or linked to, the Processor or a 
Trading Center or a member of such Trading Center that has a severe 
and continuing negative impact, on a market-wide basis, on quoting, 
order, or trading activity or on the availability of market 
information necessary to maintain a fair and orderly market. For 
purposes of this definition, a severe and continuing negative impact 
on quoting, order, or trading activity includes (i) a series of 
quotes, orders, or transactions at prices substantially unrelated to 
the current market for the security or securities; (ii) duplicative 
or erroneous quoting, order, trade reporting, or other related 
message traffic between one or more Trading Centers or their 
members; or (iii) the unavailability of quoting, order, or 
transaction information for a sustained period.
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    The third set of new proposed definitions would be specific to 
events involving the SIP. While the Exchange recognizes that many 
events involving the SIP would also meet the definition of 
``Extraordinary Market Activity'' as defined in the Amended CTA/CQ 
Plan, the Exchange believes that the critical role of the SIPs in 
market infrastructure factors in favor having the Exchange's rules 
specify how such events would be handled. The definitions of ``SIP 
Outage,'' \19\ ``Material SIP Latency,'' \20\ ``SIP Halt Resume Time,'' 
\21\ and ``SIP Halt'' \22\ are intended to provide specificity to 
address this subset of potential market issues. In addition, the 
Exchange is proposing to define terms related to SIP governance needed 
in order to understand these definitions:
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    \19\ See proposed Rule 11.29(a)(16).
    \20\ See proposed Rule 11.29(a)(7).
    \21\ See proposed Rule 11.29(a)(15).
    \22\ See proposed Rule 11.29(a)(14).
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    <bullet> ``Processor'' or ``SIP'' \23\ have the same meaning as the 
term ``Processor'' set forth in the Nasdaq UTP Plan or the CTA Plan, as 
applicable.\24\
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    \23\ See proposed Rule 11.29(a)(11).
    \24\ See, e.g., Amended CTA Plan, Section I(x), which provides: 
``'Processor' means the organization designated as recipient and 
processor of last sale price information furnished by Participants 
pursuant to this CTA Plan, as Section V describes.''
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    <bullet> ``SIP Plan'' \25\ would be defined as ``the national 
market system plan governing the SIP, as applicable.''
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    \25\ See proposed Rule 11.29(a)(17).
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    <bullet> ``Operating Committee'' \26\ is defined as having the same 
meaning as in the CTA/CQ Plan, namely the committee charged with 
administering the CTA/CQ Plan.
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    \26\ See proposed Rule 11.29(a)(8).
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    <bullet> ``Trading Center'' would have the same meaning as in Rule 
600(b)(95) of Regulation NMS.
    The Exchange is proposing to adopt a category of Regulatory Halt, 
called a ``SIP Halt,'' \27\ which will have the same meaning as that 
term is defined in Section XI(a)(i)(K) of the CTA/CQ Plan, namely ``a 
Regulatory Halt to trading in one or more securities that a Primary 
Listing Market declares in the event of a SIP Outage or Material SIP 
Latency.'' This new category of Regulatory Halt will address situations 
where the Primary Listing Market declares a Regulatory Halt in one or 
more securities as a result of a SIP Outage \28\ or Material SIP 
Latency.\29\
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    \27\ See proposed Rule 11.29(a)(14).
    \28\ See Amended CTA/CQ Plan, Section XI(a)(i)(M). ``SIP 
Outage'' means ``a situation in which the Processor has ceased, or 
anticipates being unable, to provide updated and/or accurate 
quotation or last sale price information in one or more securities 
for a material period that exceeds the time thresholds for an 
orderly failover to backup facilities established by mutual 
agreement among the Processor, the Primary Listing Market for the 
affected securities, and the Operating Committee unless the Primary 
Listing Market, in consultation with the Processor and the Operating 
Committee, determines that resumption of accurate data is expected 
in the near future.''
    \29\ See Amended CTA/CQ Plan, Section XI(a)(i)(E). ``Material 
SIP Latency'' means ``a delay of quotation or last sale price 
information in one or more securities between the time data is 
received by the Processor and the time the Processor disseminates 
the data over the Processors vendor lines, which delay the Primary 
Listing Market determines, in consultation with, and in accordance 
with, publicly disclosed guidelines established by the Operating 
Committee, to be (a) material and (b) unlikely to be resolved in the 
near future.''
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    The Exchange proposes to add a definition of ``Regulatory Halt,'' 
\30\ which would be a new defined term that incorporates the Exchange's 
existing regulatory halt authority as well as the proposed new 
regulatory halt authority. The Exchange proposes that the term would 
have the same meaning as in Section XI(a)(i)(J) of the Amended CTA/CQ 
Plan, as follows:
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    \30\ See proposed Rule 11.29(a)(12).

a halt declared by the Primary Listing Market in trading in one or 
more securities on all Trading Centers for regulatory purposes, 
including for the dissemination of material news, news pending, 
suspensions, or where otherwise necessary to maintain a fair and 
orderly market. A Regulatory Halt includes a trading pause triggered 
by Limit Up Limit Down,\31\ a halt based on Extraordinary Market 
Activity, a trading halt triggered by a Market-Wide Circuit 
Breaker,\32\ and a SIP Halt.
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    \31\ The Exchange proposes to incorporate the Amended CTA Plan's 
definition of ``Limit Up Limit Down.'' See proposed Rule 
11.29(a)(5).
    \32\ The Exchange proposes to incorporate the Amended CTA Plan's 
definition of ``Market-Wide Circuit Breaker.'' See proposed Rule 
11.29(a)(6).

    The term ``Regulatory Halt'' would include the various existing 
reasons for a Regulatory Halt that are currently enumerated in the 
Exchange's rules, as well as the proposed new categories of Regulatory 
Halt from the Amended CTA/CQ Plan: (1) a SIP Halt (due to a SIP Outage 
or Material SIP Latency), (2) a halt based on Extraordinary Market 
Activity, and (3) a halt in the event of a national, regional, or 
localized disruption that necessitates a Regulatory Halt to maintain a 
fair and orderly market. The Exchange proposes to move the Market-Wide 
Circuit Breaker rules in their entirety from Rule 11.18 to proposed 
Rule 11.30, in order to improve clarity.
    Next, the Exchange proposes to add a definition of ``Operational 
Halt,'' \33\ which would be a new definition for the Exchange. The 
Exchange proposes that this term would have the same meaning as the 
Amended CTA/CQ Plans.\34\ An Operational Halt is effective only on BZX; 
other markets are not required to halt trading in the impacted 
securities. In practice, the Exchange has always had the capacity to 
implement operational halts in specified circumstances, but such halts 
are not currently referred to as ``operational halts'' in the 
Exchange's rules.\35\ The proposed change would provide greater clarity 
on when an Operational Halt may be implemented and the process for 
halting and resuming trading in the event of an Operational Halt. An 
Operational Halt is not a Regulatory Halt.
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    \33\ See proposed Rule 11.29(a)(9).
    \34\ See Amended CTA/CQ Plan, Section XI(a)(i)(G). An 
``Operational Halt'' means a halt in trading in one or more 
securities only on a Market declared by such Participant and is not 
a Regulatory Halt.
    \35\ See Rule 11.1(c).
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    Finally, the Exchange proposes to introduce a definition of 
``Derivative Securities Product.'' \36\ The Exchange notes that this 
term is similar to the term ``Derivative Security'' in Rule 1.5(dd), 
but provides additional specificity as to the exact products under 
Chapter XIV that the Exchange would classify as a Derivative Securities 
Product for purposes of proposed Rule 11.29. The term ``Derivative 
Securities Product'' means a series of Portfolio Depositary Receipts, 
Index Fund Shares, Managed Fund Shares, Trust Issued Receipts, Managed 
Portfolio Shares, Exchange-Traded Fund Shares, Tracking

[[Page 13877]]

Fund Shares, and Class ETF Shares (as defined in Rule 14.11(b), 
14.11(c), 14.11(i), 14.11(f), 14.11(k), 14.11(l), 14.11(m), and 
14.11(n) respectively), a series of Commodity-Related Securities (as 
defined in Rule 14.11(d)), securities representing interests in unit 
investment trusts or investment companies, Index-Linked Exchangeable 
Notes, Equity Gold Shares, Trust Certificates, Commodity-Based Trust 
Shares, Commodity Index Trust Shares, Commodity Futures Trust Shares, 
Partnership Units, Trust Units, Managed Trust Securities, or Currency 
Warrants (as defined in Rule 14.11(e)(1)-(11)), or any other UTP 
Derivative Security (as described in Rule 14.11(j)).
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    \36\ See proposed Rule 11.29(a)(2).
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Regulatory Halts
    Proposed Rule 11.29(b) would set forth requirements relating to 
Regulatory Halts.
Authority To Initiate a Regulatory Halt
    The Exchange proposes to consolidate the various types of 
situations that form the basis for declaring a Regulatory Halt in 
proposed Rule 11.29(b)(1). In this subsection, the Exchange would 
identify all of the bases for its Regulatory Halt authority, including 
cross-referencing to current rules describing existing halt authority 
and by adding the new Regulatory Halt authority consistent with the 
Amended CTA/CQ Plan.
    Proposed Rule 11.29(b)(1)(A) describes ``Mandatory Halts,'' where 
the Exchange must issue a Regulatory Halt. The proposed rule would 
identify four categories of mandatory Regulatory Halts:
    <bullet> Pursuant to Proposed Rule 11.29(b)(1)(A)(i) regarding the 
Market-Wide Circuit Breakers, which will be retained without 
modification in proposed Rule 11.30 (currently codified in Rule 
11.18(a)-(d); (f)-(j)). This proposed rule would effectuate the 
definition of Regulatory Halt in proposed Rule 11.29(a)(10), which 
cross-references Section XI(a)(i)(J) of the Amended CTA/CQ Plan.
    <bullet> Pursuant to Proposed Rule 11.29(b)(1)(A)(ii) regarding the 
Limit Up-Limit Down Plan (proposed Rule 11.18). This proposed rule 
would effectuate the definition of Regulatory Halt in proposed Rule 
11.29(a)(10), which cross-references Section XI(a)(i)(J) of the Amended 
CTA/CQ Plan.
    <bullet> Pursuant to Proposed Rule 11.29(b)(1)(A)(iii) when the 
Exchange becomes aware that a Derivative Securities Product (or in the 
case of Index Fund Shares, Managed Fund Shares, Managed Trust 
Securities, Managed Portfolio Shares, or Tracking Fund Shares, a 
Disclosed Portfolio, holdings, Fund Portfolio, or Tracking Basket, as 
applicable) is not being disseminated to all participants at the same 
time. The Exchange will maintain the trading halt until such time as 
the Exchange becomes aware that the required value is available to all 
market participants at the same time. This proposed rule text is based 
on authority found in current Rule 14.11, generally, and would 
effectuate Section XI(a)(iii)(1) of the Amended CTA/CQ Plan, which 
provides that a Primary Listing Exchange may declare a Regulatory Halt 
``as provided for in the rules of the Primary Listing Market.''
    <bullet> As provided for elsewhere in the Rules of the Exchange, 
including but not limited to Rules 11.1, 11.23, 14.6, 14.8, 14.9, 
14.10, 14.11(b)-(g), 14.11(i)-(n), and 14.12 concerning requirements 
for listing, delisting, and maintaining listings of certain types of 
securities, and regarding the public dissemination of material 
information (Proposed Rule 11.29(b)(1)(A)(iv). This proposed rule text 
is based on authority found in current Rules 11.1 and 14.11, generally, 
and would effectuate Section XI(a)(iii)(1) of the Amended CTA/CQ Plan, 
which provides that a Primary Listing Exchange may declare a Regulatory 
Halt ``as provided for in the rules of the Primary Listing Market.''
    Proposed Rule 11.29(b)(1)(B) would describe ``Discretionary 
Halts,'' where ``the Exchange may declare a Regulatory Halt in trading 
for any security for which it is the Primary Listing Market.'' The 
proposed rule would list four bases for the Exchange to declare a 
discretionary Regulatory Halt:
    <bullet> Pursuant to Proposed Rule 11.29(b)(1)(B)(i) when the 
Exchange determines that there is Extraordinary Market Activity, a SIP 
Outage, or Material SIP Latency. This proposed rule would effectuate 
Section XI(a)(iii)(2) of the Amended CTA/CQ Plan, which provides this 
authority.
    <bullet> Pursuant to Proposed Rule 11.29(b)(1)(B)(ii), as provided 
for elsewhere in the Rules of the Exchange, including but not limited 
to Rules 11.1, 11.23, 14.6, 14.8, 14.9, 14.10, 14.11(b)-(g), 14.11(i)-
(n), and 14.12 concerning requirements for listing, delisting, and 
maintaining listings of certain types of securities, and regarding the 
public dissemination of material information.
    <bullet> Pursuant to Proposed Rule 11.29(b)(1)(iii), based on a 
consideration of the following factors: (A) trading in the underlying 
securities comprising the index or portfolio applicable to that series 
has been halted in the primary market(s); (B) the extent to which 
trading has ceased in securities underlying the index or portfolio; or 
(C) the presence of other unusual conditions or circumstances 
detrimental to the maintenance of a fair and orderly market. This 
proposed rule text would effectuate Section XI(a)(iii)(1) of the 
Amended CTA/CQ Plan, which provides that a Primary Listing Exchange may 
declare a Regulatory Halt ``as provided for in the rules of the Primary 
Listing Market.''
    <bullet> Pursuant to Proposed Rule 11.29(b)(1)(B)(iv) in the event 
of a national, regional, or localized disruption that necessitates a 
Regulatory Halt to maintain a fair and orderly market. This proposed 
rule would effectuate Section XI(a)(iii)(3) of the Amended CTA/CQ Plan, 
which provides this authority.
Communications
    Proposed Rule 11.29(b)(2) would describe communications, consistent 
with Section XI(a)(viii) of the Amended CTA/CQ Plan. The proposed rule 
would provide that whenever, in the exercise of its regulatory 
functions, the Exchange as Primary Listing Market determines it is 
appropriate to initiate a Regulatory Halt, it will notify all other 
Participants and the Processor of such Regulatory Halt as well as 
provide notice that a Regulatory Halt has been lifted using such 
protocols and other emergency procedures as may be mutually agreed to 
between the Operating Committee and the Exchange. The Processor shall 
disseminate to Participants notice of the Regulatory Halt (as well as 
notice of the lifting of a Regulatory Halt) through the high speed line 
or through the ``high speed line'' under the CQ Plan, and any other 
means the Processor, in its sole discretion, considers appropriate. 
Each Participant shall be required to continuously monitor these 
communication protocols established by the Operating Committee and the 
Processor during market hours, and the failure of a Participant to do 
so shall not prevent the Exchange from initiating a Regulatory Halt in 
accordance with the SIP Plan and the procedures specified in these 
rules.
Initiating a Regulatory Halt
    Proposed Rule 11.29(b)(3) would specify how the Exchange, as a 
Primary Listing Market, would initiate a Regulatory Halt. The proposed 
rule is consistent with the procedures for initiating a Regulatory Halt 
is set forth in Section XI(a)(iv) of the Amended CTA/CQ Plan.
    Proposed Rule 11.29(b)(3)(A) would provide, consistent with Section 
XI(a)(iv)(A) of the Amended CTA/CQ Plan, that the start time of a 
Regulatory

[[Page 13878]]

Halt is the time the Exchange or the Primary Listing Market declares 
the Halt, regardless of whether communications issues impact the 
dissemination of notice of the Halt. This proposal would provide market 
participants with certainty on the official start time of the 
Regulatory Halt. Under the proposed rule, the start time is fixed by 
the Primary Listing Market; it is not dependent on whether notice is 
disseminated immediately. This will avoid possible disagreement if the 
Halt time were tied to dissemination or receipt of notification, which 
may occur at different times. The Exchange recognizes that in 
situations where communication is interrupted, trades may continue to 
occur until news of the Halt reaches all Trading Centers. However, a 
fixed ``official'' Regulatory Halt time will allow SROs to revisit 
trades after the fact and determine in a consistent manner whether 
specific trades should stand.
    Second, proposed Rule 11.29(b)(3)(B) would provide, consistent with 
Section XI(a)(iv)(B) of the Amended CTA/CQ Plan, that if the SIP is 
unable to disseminate notice of a Regulatory Halt or the Exchange is 
not open for trading, the Exchange would take reasonable steps to 
provide notice of a Regulatory Halt in the manner set forth in the 
Amended CTA/CQ Plan. Currently, after receiving notice from the Primary 
Listing Market, the SIP disseminates automated, machine-readable trade 
halt messages to notify Trading Centers to automatically halt their 
order matching and order dissemination systems. Many Trading Centers 
rely solely on such SIP dissemination of a Regulatory Halt. Proposed 
Rule 11.29(b)(3)(B) would provide that the Exchange would take 
additional, reasonable steps to notify Trading Centers of a Regulatory 
Halt. The Amended CTA/CQ Plan provides that if the SIP is unable to 
disseminate notice of a Regulatory Halt, the other available means of 
dissemination that a Primary Listing Market could use would include:
    <bullet> Proprietary data feeds that contain the same quote and 
trade information that the Exchange also sends to the applicable SIP;
    <bullet> Posting on a publicly available Exchange website; or
    <bullet> System status messages that are disseminated to market 
participants who choose to sign up to receive such messages.\37\
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    \37\ See Amended CTA/CQ Plan, Section XI(a)(iv)(B)(1)-(3).
---------------------------------------------------------------------------

    These additional sources for notice of a Regulatory Halt would 
provide redundancy if either the SIP or the Exchange is unable to 
communicate via the existing automated procedures. Although it may take 
longer for participants to react to messages received in less automated 
formats, the use of multiple forms of dissemination will increase the 
likelihood that participants receive important information. It will 
also assist participants who do not subscribe to the Exchange's 
proprietary feeds in getting regulatory notices. As noted above, in 
situations where communication is interrupted the Exchange and other 
SROs would retain the ability to break trades that occurred after the 
start of the Regulatory Halt in appropriate circumstances, thereby 
lessening the potential impact on participants that were delayed in 
halting trading.
    Proposed Rule 11.29(b)(3)(C) would provide, consistent with Section 
XI(a)(iv)(C) of the Amended CTA/CQ Plan, that except in exigent 
circumstances, the Exchange would not declare a Regulatory Halt 
retroactive to a time earlier than the notice of such halt. Feedback 
from market participants has been that it is very disruptive to trading 
when the Primary Listing Market sets the start of a trading halt for a 
time earlier than the notice of the halt.\38\ Therefore, in almost all 
situations, the trading halt will start at the time of the notice or at 
a point in time thereafter. However, the Exchange retains the authority 
to implement a retroactive halt to deal with unexpected and significant 
situations that represent exigent circumstances. While it is difficult 
in advance to provide an exhaustive list of when retroactive 
application of a trading halt would be in the public interest, one 
situation where a halt was applied retroactively was when the Primary 
Listing Market erroneously lifted a Regulatory Halt. In that case, the 
Primary Listing Market instituted a Regulatory Halt retroactively so 
that it coincided with the time the original halt was lifted in error.
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    \38\ As noted previously, the start time of a Regulatory Halt is 
measured as the point in time when the Primary Listing Market 
declares the halt, regardless of whether there is a delay in 
dissemination of the notice or in receipt of the notice by 
participants.
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    Proposed Rule 11.29(b)(3)(D) would provide, consistent with Section 
XI(a)(iii)(B) of the Amended CTA/CQ Plan, that in making a 
determination to declare a Regulatory Halt in trading any security for 
which the Exchange is the Primary Listing Market, the Exchange will 
consider the totality of information available concerning the severity 
of the issue, its likely duration, and potential impact on Members and 
other market participants and will make a good-faith determination that 
the criteria for declaring the Regulatory halt have been satisfied and 
that a Regulatory Halt is appropriate. The Exchange will consult, if 
feasible, with the affected Trading Center(s), other SIP Plan 
Participants, or the Processor, as applicable, regarding the scope of 
the issue and what steps are being taken to address the issue. Once a 
Regulatory Halt has been declared, the Exchange will continue to 
evaluate the circumstances to determine when trading may resume in 
accordance with its Rules.
UTP Regulatory Halt
    Proposed Rule 11.29(b)(4) would specify how the Exchange would 
respond to Regulatory Halts declared by other Primary Listing Markets, 
referred to by the Exchange as a ``UTP Regulatory Halt.'' Proposed Rule 
11.29(b)(4)(A) would provide that the Exchange would halt trading in 
any UTP Securities when the Primary Listing Market declares a 
Regulatory Halt for any such securities. The proposed rule text is 
based on current Rule 14.11(j)(3) and Section XI(a)(iii) of the Amended 
CTA/CQ Plan. Proposed Rule 11.29(b)(4)(B)(i)-(iii) would set forth 
rules for trading halts in UTP Derivative Securities Products.\39\ This 
proposed rule text is based on current authority to halt Derivative 
Securities pursuant to Rules 14.11(b)-(g); (i)-(m).
---------------------------------------------------------------------------

    \39\ See Rule 1.5(ee). The term ``UTP Derivative Security'' 
shall mean any one of a list of Derivative Securities that trades on 
the Exchange pursuant to unlisted trading privileges. The term 
``Derivative Security'' is defined in Rule 1.5(dd) and means a 
security that meets the definition of ``new derivative securities 
product'' in Rule 19b-4(e) under the Exchange Act.
---------------------------------------------------------------------------

Resumption of Trading After a Regulatory Halt
    The SROs have jointly developed processes to govern the resumption 
of trading in the event of a Regulatory Halt. While the actual process 
of re-launching trading will remain unique to each exchange (for 
example, BZX-listed securities resume trading on the Exchange in most 
cases through a Halt Auction pursuant to Rule 11.23(d)), the proposed 
rule would harmonize certain common elements of the reopening process 
that would benefit from consistency across markets. These common 
elements include the primacy of the Primary Listing Market in 
resumption decisions, the requirement that the Primary Listing Market 
make its determination to resume trading in good faith, and certain 
parts of the complex process of reopening trading after a SIP Halt. 
With respect to a SIP Halt,

[[Page 13879]]

common elements of the reopening process include the interaction among 
SROs (including the Primary Listing Market with the SIP), the 
requirement that the Primary Listing Market terminate a SIP Halt with a 
notification that specifies a SIP Halt Resume Time, the minimum quoting 
times before resumption of trading, the cutoff time after which trading 
would not resume during Regular Trading Hours, and the time when 
trading may resume if the Primary Listing Market does not open a 
security within the amount of time specified in its rules after the SIP 
Halt Resume Time.
    Proposed Rule 11.29(b)(5)(A) provides the process to be followed 
when resuming trading upon the conclusion of Regulatory Halts other 
than SIP Halts. The new rule would effectuate Section XI(a)(v) of the 
Amended CTA/CQ Plan.
    Proposed rule 11.29(b)(5)(A)(i) would make clear that BZX, as the 
Primary Listing Market, is responsible for declaring a resumption of 
trading when it makes a good faith determination that trading may 
resume in a fair and orderly manner and in accordance with its rules.
    The resumption process incorporating the Halt Auction would be 
described under Proposed Rule 11.29(b)(5)(A)(ii), and states that the 
Exchange will release the security for trading pursuant to its Halt 
Auction process under Rule 11.23(d), except as provided in 
subparagraphs (a) through (d). Proposed Rule 11.29(b)(5)(A)(ii) also 
provides that during any trading halt or pause for which a Halt Auction 
under Rule 11.23(d) will not occur, orders entered during the 
Regulatory Halt or pause will be accepted pursuant to Rule 11.24(e).
    Subparagraph (a) would specify that the Exchange would resume 
trading after a Limit Up Limit Down trading pause as specified in Rule 
11.18.
    Subparagraph (b) would specify that the Exchange would resume 
trading after a Market-Wide Circuit Breaker halt as specified in 
proposed Rule 11.30.
    Subparagraph (c) would provide that the Exchange would resume 
trading as specified in Rule 11.23(e) when the start time of a 
Regulatory Halt would begin between 3:50 p.m. and 4:00 p.m. or the 
Quote-Only Period (as described in Rule 11.23(d)) of a Halt Auction for 
a security subject to a Regulatory Halt would otherwise be extended by 
the Exchange after 3:50 p.m.
    Subparagraph (d) would provide that the Exchange would resume 
trading after a UTP Regulatory Halt other than a SIP Halt by starting 
to accept orders after the Exchange receives notification \40\ from the 
UTP Listing Market that the Regulatory Halt has been terminated. 
Subparagraph (d) would further provide that the Exchange would not 
conduct a Halt Auction to resume trading after a Regulatory Halt in a 
UTP Security, including a UTP Derivative Security.
---------------------------------------------------------------------------

    \40\ The manner and timing of such notice would be determined by 
the Primary Listing Market.
---------------------------------------------------------------------------

    Proposed Rule 11.29(b)(5)(B) would address the resumption of 
trading following a SIP Halt. This new rule would effectuate Section 
XI(a)(vi) of the Amended CTA/CQ Plan.
    Proposed Rule 11.29(b)(5)(B)(i) would establish the rules for the 
resumption of trading following a SIP Halt initiated by the Exchange. 
Proposed Rule 11.29(b)(5)(B)(i)(a), which is based on Section 
XI(a)(vi)(A) of the Amended CTA/CA Plan, would provide that the 
Exchange would determine when a SIP Halt would end, which would be 
defined as the ``SIP Halt Resume Time,'' which is also defined in the 
Amended CTA/CQ Plan.\41\ As further proposed, in making this 
determination, the Exchange would make a good-faith determination and 
consider the totality of information to determine whether resuming 
trading would promote a fair and orderly market.
---------------------------------------------------------------------------

    \41\ See Amended CTA/CQ Plan, Section XI(a)(i)(L).
---------------------------------------------------------------------------

    The SROs' experience with such events is that communication amount 
SROs, SIPs and market participants is the best way to ensure that the 
Primary Listing Market has access to available information and to 
coordinate the reopening of trading in an orderly manner. In addition, 
the SROs anticipate that market participants and other impacted 
entities will have access to information about the issue causing the 
SIP Halt, the duration of the halt and the resumption process through 
updated communications from the SIP, Operating Committee and Primary 
Listing Market. Accordingly, the proposed Rule 11.29(b)(5)(B)(i)(a) 
would further provide that when determining whether to resume trading, 
the Exchange would include input from the SIP processor, the Operating 
Committee, or the operator of the system in question (as well as any 
Trading Center(s) to which such system is linked), regarding 
operational readiness to resume trading. The rule would further provide 
that the Exchange would retain discretion to delay the SIP Halt Resume 
Time if it believes trading would not resume in a fair and orderly 
manner.
    Under proposed Rule 11.29(b)(5)(B)(i)(b), the Exchange would 
terminate a SIP Halt with a notification that specifies the SIP Halt 
Resume Time. Section XI(a)(vi)(B) of the Amended CTA/CQ Plan directs 
the Primary Listing Market to specify in its rules (a) the minimum 
notice it will provide of a SIP Halt Resume Time, during which period 
market participants may enter orders in the affected securities, and 
(b) the last SIP Halt Resume Time before the end of regular trading 
hours. In accordance with that direction, Proposed Rule 
11.29(b)(4)(B)(i)(b) would state that the Exchange would provide for a 
minimum five-minute notice of a SIP Halt Resume Time, which is 
sufficiently in advance of resumption to permit market participants to 
prepare their systems for trading.
    In addition, proposed Rule 11.29(b)(5)(B)(i)(b) would establish 
that during Regular Trading Hours, the last SIP Halt Resume Time would 
be 20 minutes before the end of Regular Trading Hours, e.g., 3:40 p.m. 
ET. The Exchange believes that a SIP Halt Resume Time after 3:40 p.m. 
ET would interrupt a fair and orderly closing process. Accordingly, in 
such case, the Exchange would not run a Closing Auction and would 
establish Official Closing Prices for securities affected by the SIP 
Halt pursuant to Rule 11.23(i), which sets forth how the Exchange will 
determine the Official Closing Price if the Exchange is unable to 
conduct a closing transaction in one or more securities due to a 
systems or technical issue. In such case, the Exchange would 
disseminate a SIP Halt Resume Time after Regular Trading Hours.
    Proposed Rule 11.29(b)(5)(B)(i)(b) would further provide the 
Exchange, as the Primary Listing Market, with discretion to stagger the 
SIP Halt Resume Times for multiple securities in order to reopen in a 
fair and orderly manner. For example, this discretion could be used to 
open trading in a small number of symbols to ensure that systems are 
operating normally before resuming trading in the remaining symbols.
    Proposed Rule 11.29(b)(5)(B)(i)(c) would provide that for a SIP 
Halt initiated by the Exchange, the Exchange would reopen trading in 
the same manner as a Regulatory Halt as described in proposed Rule 
11.29(b)(5)(A), with the only difference being that the Quote-Only 
Period will be a minimum of five minutes, but may be extended at the 
discretion of the Exchange pursuant to Rule 11.29(b)(5)(B)(i)(a). 
Because a SIP Halt is a Regulatory Halt, such Halt Auction would be 
subject to the extension logic and widened auction collars as described 
in Rule 11.23(d)(2)(C).

[[Page 13880]]

    Proposed Rule 11.29(b)(5)(B)(ii) provides that, for a SIP Halt 
initiated by another exchange that is the Primary Listing Market, 
during Regular Trading Hours, BZX may resume trading after trading has 
resumed on the Primary Listing Market or notice has been received from 
the Primary Listing Market that trading may resume. Proposed Rule 
11.29(b)(5)(B)(ii) provides that, for a SIP Halt initiated by a market 
other than BZX, during Regular Trading Hours, if the Primary Listing 
Market does not open a security within the amount of time listed by the 
rules of the Primary Listing Market, BZX may resume trading in that 
security. Under Proposed Rule 11.29(b)(4)(B)(ii), outside of Regular 
Trading Hours, BZX may resume trading immediately after the SIP Halt 
Resume Time.
Operational Halt
    The Exchange proposes in Rule 11.29(c) to address Operational 
Halts, which are non-regulatory in nature and apply only to the 
exchange that calls the halt. As described above, the Exchange has 
always had the capacity to implement operational halts and local 
trading suspensions in specified circumstances, but such halts are not 
currently referred to as ``operational halts'' in the Exchange's 
rules.\42\ As part of the Exchange's assessment with the other SROs of 
the halting and resumption of trading, the Exchange believes that the 
markets would benefit from greater clarity regarding when an 
Operational Halt may be appropriate. In part, the proposed change is 
designed to cover situations similar to those that might constitute a 
Regulatory Halt, but where the impact is limited to a single market. 
For example, just as a market disruption might trigger a Regulatory 
Halt for Extraordinary Market Activity (as defined in the Amended CTA/
CQ Plan) if it affects multiple markets, so a disruption at the 
Exchange, such as a technical issue affecting trading in one or more 
securities, could impact trading on the Exchange so significantly that 
an Operational Halt is appropriate in one or more securities. In such 
an instance, it would be in the public interest to institute an 
Operational Halt to minimize the impact of a disruption that, if 
trading were allowed to continue, might negatively affect a greater 
number of market participants. An Operational Halt does not implicate 
other trading centers.
---------------------------------------------------------------------------

    \42\ See Rule 11.1(c). The Exchange also notes that its proposed 
Rule 11.29(c) regarding Operational Halts is substantially identical 
to the NYSE Arca, Nasdaq PHLX, MIAX Pearl, and MEMX rules cited in 
note 6 above, and is therefore not novel.
---------------------------------------------------------------------------

    Proposed Rule 11.29(c)(1) would specify the Exchange's authority to 
initiate an Operational Halt, which is discretionary, and provide that 
the Exchange may declare an Operational Halt for any security trading 
on the Exchange if it is experiencing Extraordinary Market Activity on 
the Exchange (proposed Rule 11.29(c)(1)(A)) or when otherwise necessary 
to maintain a fair and orderly market or in the public interest 
(proposed Rule 11.29(c)(1)(B)).
    Under proposed Rule 11.29(c)(2), the Exchange would notify the 
Processor if it has concerns about its ability to collect and transmit 
quotes, orders, or last sale prices, or where it has declared an 
Operational Halt or suspension of trading in one or more Eligible 
Securities (as that term is defined in the Amended CTA/CQ Plan), 
pursuant to the procedures adopted by the Operating Committee.
    Proposed Rule 11.29(c)(3) would set out rules for order processing 
during an Operational Halt. In such case, proposed Rule 11.29(c)(3)(A) 
would provide that the Exchange would cancel all unexecuted orders 
resting on the BZX Book, including Eligible Auction Orders, and 
proposed Rule 11.29(c)(3)(B) would provide that the Exchange would 
reject all other incoming order instructions until the Exchange resumes 
trading. Proposed Rule 11.29(c)(3)(C) would provide that for a BZX-
listed security, a Halt Auction will not be conducted pursuant to Rule 
11.23(d), and the security will resume trading once the Operational 
Halt is lifted by the Exchange. Proposed Rule 11.29(c)(3)(D) provides 
that an Operational Halt in a UTP Security would resume on the Exchange 
pursuant to proposed Rule 11.24(f), which the Exchange proposes to 
introduce. Proposed Rule 11.24(f) would describe the Exchange's current 
practice for re-opening securities that are not subject to a Regulatory 
Halt and states that while a security is subject to an Operational 
Halt, orders will not be accepted for queuing prior to the security's 
resumption of trading and that any open orders on the BZX Book \43\ 
will be cancelled. Proposed Rule 11.24(f)(1) states that a security 
subject to an Operational Halt will return to trading when the Exchange 
declares that trading may resume pursuant to Rule 11.29(c)(3).
---------------------------------------------------------------------------

    \43\ See Rule 1.5(e).
---------------------------------------------------------------------------

    Proposed Rule 11.29(c)(4) would specify how the Exchange resumes 
trading after an Operational Halt. Proposed Rule 11.29(c)(4)(A) would 
provide that the Exchange would resume trading following an Operational 
Halt when it determines that trading may resume in a fair and orderly 
manner consistent with the Exchange's rules. Proposed Rule 
11.29(c)(4)(B) would address ``Communications,'' and provide that 
trading in a halted security shall resume at the time specified by the 
Exchange in a notice. It would further specify that the Exchange will 
notify all other Plan participants and the SIP of such Operational Halt 
as well as provide notice that an Operational Halt has been lifted 
using such protocols and other emergency procedures as may be mutually 
agreed to between the Operating Committee and the Exchange. If the SIP 
is unable to disseminate notice of an Operational Halt or the Exchange 
is not open for trading, the Exchange would take reasonable steps to 
provide notice of an Operational Halt, which shall include both the 
type and start time of the Operational Halt. Each Plan participant 
shall continuously monitor communication protocols established by the 
Operating Committee and the Processor during market hours to 
disseminate notice of an Operational Halt, and the failure of a 
participant to do so shall not prevent the Exchange from initiating an 
Operational Halt.
Conforming Changes to Other Rules
    The Exchange is proposing to modify a number of other rules that 
currently cross reference rules that are being relocated or to add 
cross references to new Rules 11.29 and 11.30. Modifications to the 
citation are proposed for the following rules:
    <bullet> Rule 11.8(d)(2)(D) and Rule 11.8(d)(2)(E), Obligations of 
Market Makers, have been modified to replace a reference to Rule 
11.18(b) with Rule 11.18(a) to reflect the relocation of the original 
rule.
    <bullet> Rule 11.9(a)(2), Orders and Modifiers, has been modified 
to replace a reference to Rule 11.18(e)(5)(B) with Rule 11.18(a)(5)(B) 
to reflect the relocation of the original rule.
    <bullet> Rule 11.13(a)(3) and Rule 11.13(b)(3)(I), Order Execution 
and Routing, have been modified to replace a reference to Rule 11.18(e) 
with Rule 11.18(a) to reflect the relocation of the original rule.
    <bullet> Rules 11.13(b)(3) and 11.13(b)(5) have been modified to 
remove the italic formatting from the title of each subsection in order 
to conform with other subsections of Rule 11.13(b).
    <bullet> Rule 11.23(d), Auctions, has been modified to replace a 
reference to Rule 11.18(b)(2) with Rule 11.30(b)(2) to reflect the 
relocation of the original rule.
    <bullet> Rule 11.23(e), Auctions, has been modified to include 
references to Rules

[[Page 13881]]

11.29 and 11.30 to reflect the addition of new rule text and the 
relocation of the Market-Wide Circuit Breaker rule from the original 
rule.
    <bullet> Rule 11.24(e), Opening Process for Non-BZX-Listed 
Securities, has been modified to replace a reference to Rule 
11.18(b)(2) with Rule 11.30(b)(2) to reflect the relocation of the 
original rule. This rule has also been modified to include the word 
``Regulatory'' in order to indicate its applicability only to 
Regulatory Halts.
    <bullet> The preamble to Chapter XIV, Bats BZX Exchange Listing 
Rules, has been modified to include references to Rules 11.29 and 11.30 
to reflect the addition of new rule text and the relocation of the 
Market-Wide Circuit Breaker rule from the original rule.
    <bullet> Interpretation and Policy .01 to Rule 14.3, which covers 
dually-listed securities, has been modified to reflect the changes 
proposed in new Rule 11.29. The proposed rule makes clear that the 
Primary Listing Market is the market on which the security has been 
listed longest. This clear statement has eliminated the need for the 
more specific citations to various subsections currently contained in 
Interpretation and Policy .01 to Rule 14.3.
    <bullet> Interpretation and Policy .01(c) to Rule 14.6, Disclosure 
of Material Information, Trading Halts, has been modified to include 
reference to new Rules 11.29 and 11.30. In addition, Interpretation and 
Policy .01(b) has been modified to display the correct Exchange market 
hours of 7:00 a.m. to 8:00 p.m. ET and to amend a reference to the 
Company rather than the Exchange.
    <bullet> Rule 14.11(c) has been modified to include references to 
Rules 11.29 and 11.30 to reflect the addition of new rule text and the 
relocation of the Market-Wide Circuit Breaker rule from the original 
rule and to remove an extraneous comma.
    <bullet> Rule 14.11(e)(9), Trust Units, has been modified to 
replace a reference to Rule 11.18 with Rule 11.30, to reflect the 
relocation of the original rule.
    <bullet> Rule 14.11(e)(10), Managed Trust Securities, has been 
modified to replace a reference to Rule 11.18 with Rule 11.29, to 
reflect the relocation of the original rule.
    <bullet> Rule 14.11(j) and Rule 14.11(j)(3), UTP Derivative 
Securities, have been modified to include references to Rules 11.29 and 
11.30 to reflect the addition of new rule text and the relocation of 
the Market-Wide Circuit Breaker rule from the original rule.
    The Staff notes that the changes described above are not 
substantive and serve only to update cross references to rules that 
have been relocated.
Implementation
    The Exchange will implement the proposed changes herein in 
conjunction with the Processors and the other SROs implementing the 
necessary rule changes and related technology and procedural changes. 
The Exchange will publish a Trade Desk Notice at least 30 days prior to 
implementing the proposed changes.
2. Statutory Basis
    The Exchange believes the proposed rule change is consistent with 
the Act and the rules and regulations thereunder applicable to the 
Exchange and, in particular, the requirements of Section 6(b) of the 
Act.\44\ Specifically, the Exchange believes the proposed rule change 
is consistent with the Section 6(b)(5) \45\ requirements that the rules 
of an exchange be designed to prevent fraudulent and manipulative acts 
and practices, to promote just and equitable principles of trade, to 
foster cooperation and coordination with persons engaged in regulating, 
clearing, settling, processing information with respect to, and 
facilitating transactions in securities, to remove impediments to and 
perfect the mechanism of a free and open market and a national market 
system, and, in general, to protect investors and the public interest. 
Additionally, the Exchange believes the proposed rule change is 
consistent with the Section 6(b)(5) \46\ requirement that the rules of 
an exchange not be designed to permit unfair discrimination between 
customers, issuers, brokers, or dealers.
---------------------------------------------------------------------------

    \44\ 15 U.S.C. 78f(b).
    \45\ 15 U.S.C. 78f(b)(5).
    \46\ Id.
---------------------------------------------------------------------------

    As described above, the Exchange and other SROs are seeking to 
adopt harmonized rules related to halting and resuming trading in U.S.-
listed equity securities. The Exchange believes that the proposed rules 
will provide greater transparency and clarity with respect to the 
situations in which trading will be halted and the process through 
which that halt will be implemented and terminated. Particularly, the 
proposed changes seek to achieve consistent results for participants 
across U.S. equities exchanges while maintaining a fair and orderly 
market, protecting investors and protecting the public interest. Based 
on the foregoing, the Exchange believes that the proposed rules are 
consistent with Section 6(b)(5) of the Act \47\ because they will 
foster cooperation and coordination with persons engaged in regulating 
and facilitating transactions in securities.
---------------------------------------------------------------------------

    \47\ Id.
---------------------------------------------------------------------------

    As discussed previously, the Exchange believes that the various 
provisions of the proposed rules that will apply to all SROs are 
focused on the type of cross-market event where a consistent approach 
will assist market participants and reduce confusion during a crisis. 
Because market participants often trade the same security across 
multiple venues and trade securities listed on different exchange as 
part of a common strategy, the Exchange believes that the proposed 
rules will lessen the risk that market participants holding a basket of 
securities will have to deal with divergent outcomes depending on where 
the securities are listed or traded. Conversely, the proposed rules 
would still allow individual SROs to react differently to events that 
impact various securities or markets in different ways. This avoids the 
``brittle market'' risk where an isolated event at a single market 
forces all markets trading equities securities to halt or halts trading 
in all securities where the issue impacted only a subset of securities. 
By addressing both concerns, the Exchange believes that the proposed 
rules further the Act's goal of maintaining fair and orderly markets.
    The Exchange believes that the proposed rules' focus of 
responsibility on the Primary Listing Market for decisions related to a 
Regulatory Halt and the resumption of trading is consistent with the 
Act, which itself imposes obligations on exchanges with respect to 
issuers that are listed. As is currently the case, the Primary Listing 
Market would be responsible for the many regulatory functions related 
to its listings, including the determination of when to declare a 
Regulatory Halt. While these core responsibilities remain with the 
Primary Listing Market, trading in the security can occur on multiple 
exchanges that have unlisted trading privileges for the security or in 
the over-the-counter market, regulated by FINRA. These other venues are 
responsible for monitoring activity on their own markets, but also have 
agreed to honor a Regulatory Halt.
    The proposed changes relating to Regulatory Halts would ensure that 
all SROs handle the situations covered therein in a consistent manner 
that would prevent conflicting outcomes in cross-market events and 
ensure that all Trading Centers recognize a Regulatory Halt declared by 
the Primary Listing Market. The changes are consistent with and 
implement the Amended CTA/CQ Plan. While the proposed rules recognize a 
Primary Listing Market for

[[Page 13882]]

each security, the rules do not prevent an issuer from switching its 
listing to another national securities exchange that would thereafter 
assume the responsibilities of Primary Listing Market for that 
security. Similarly, the proposed rules set forth a fair and objective 
standard to determine which exchange will be the Primary Listing Market 
in the case of dually-listed securities: the exchange on which the 
security has been listed the longest.
    The Exchange believes that the other definitions in the proposed 
rules are also consistent with the Act. For example, the proposed rules 
would define what constitutes Extraordinary Market Activity, consistent 
with the amended definition of that term in the Amended CTA/CQ Plan, 
thereby furthering the Act's goal of promoting fair and orderly 
markets. The Exchange is also proposing to adopt definitions for ``SIP 
Outage,'' ``Material SIP Latency'' and ``SIP Halt,'' to explicitly 
address situations that may disrupt the markets, and these definitions 
are identical to the definitions in the Amended CTA/CQ Plan. The 
proposed rules provide guidance on when the Exchange should seek 
information from the Operating Committee, other SROs and market 
participants as well as means for dissemination of important 
information to the market, consistent with the Amended CTA/CQ Plan. The 
Exchange believes these provisions strike the right balance in 
outlining a process to address unforeseen events without preventing 
SROs from taking action needed to protect the market.
    The Exchange believes that the proposed rules, which make halts 
more consistent across exchange rules, are consistent with the Act in 
that they will foster cooperation and coordination with persons engaged 
in regulating the equities markets. In particular, the Exchange 
believes it is important for SROs to coordinate when there is a 
widespread and significant event, as multiple Trading Centers are 
impacted in such an event. Further, while the Exchange recognizes that 
the proposed rule will not guarantee a consistent result on every 
market in all situations, the Exchange does believe that it will assist 
in that outcome. While the proposed rules relating to Regulatory Halts 
focuses primarily on the kinds of cross-market events that would likely 
impact multiple markets, individual SROs will still retain flexibility 
to deal with unique products or small situations confined to a 
particular market. To that end, the Exchange has retained existing 
elements of Chapter XIV that focus on its unique products and the 
processes it has developed over time to interact with its issuers.
    Also consistent with the Act, and with the Amended CTA/CQ Plan, is 
the Exchange's proposal in Rule 11.29(c) to address Operational Halts, 
which are non-regulatory in nature and apply only to the exchange that 
calls the halt. As noted earlier, the Exchange presently has the 
ability to implement operational halts and local trading suspensions, 
but such halts are not currently referred to as ``operational halts'' 
in the Exchange's rules.\48\ The Exchange also notes that its proposed 
Rule 11.29(c) regarding Operational Halts is substantially identical to 
the revised NYSE Arca, Nasdaq PHLX, MIAX Pearl, and MEMX rules cited 
above,\49\ and is therefore not novel.
---------------------------------------------------------------------------

    \48\ See Rule 11.1(c).
    \49\ Supra note 6.
---------------------------------------------------------------------------

    The Exchange believes that the markets would benefit from greater 
clarity regarding when an Operational Halt may be appropriate. In part, 
the proposed change is designed to cover situations similar to those 
that might constitute a Regulatory Halt, but where the impact is 
limited to a single market. For example, just as a market disruption 
might trigger a Regulatory Halt for Extraordinary Market Activity if it 
affects multiple markets, so could a disruption at the Exchange, such 
as a technical issue affecting trading in one or more securities, 
impact trading on the Exchange so significantly that an Operational 
Halt is appropriate in one or more securities. In such an instance, it 
would be in the public interest to institute an Operational Halt to 
minimize the impact of a disruption that, if trading were allowed to 
continue, might negatively affect a greater number of market 
participants. An Operational Halt does not implicate other Trading 
Centers.
    The Exchange believes that its proposal to introduce Rule 11.24(f) 
is consistent with the Act because it will describe the Exchange's 
ability to accept and process orders during an Operational Halt and 
describe the re-opening process for securities subject to an 
Operational Halt, which will provide clarity to market participants 
about how their orders will behave during an Operational Halt and 
describe how a security subject to an Operational Halt will resume 
trading.
    The Exchange believes that it is consistent with the Act to 
reorganize the text related to Market-Wide Circuit Breakers currently 
codified in Rule 11.18(a)-(d), (f)-(j) into Rule 11.30 as it would 
provide clarity to market participants and better align with how the 
rules of other market centers are currently organized.

B. Self-Regulatory Organization's Statement on Burden on Competition

    The Exchange does not believe that the proposed rule change will 
impose any burden on competition that is not necessary or appropriate 
in furtherance of the purposes of the Act.
    Importantly, the Exchange believes the proposal will not impose a 
burden on intermarket competition but will rather alleviate any burden 
on competition because it is the result of a collaborative effort by 
all SROs to harmonize and improve the process related to the halting 
and resumption of trading in U.S.-listed equity securities, consistent 
with the Amended CTA/CQ Plan. In this area, the Exchange believes that 
all SROs should have consistent rules to the extent possible in order 
to provide additional transparency and certainty to market participants 
and to avoid inconsistent outcomes that could cause confusion and erode 
market confidence. The proposed changes would ensure that all SROs 
handle the situations covered therein in a consistent manner and ensure 
that all Trading Centers handle a Regulatory Halt consistently. The 
Exchange understands that all other Primary Listing Markets intend to 
file proposals that are substantially similar to this proposal.
    The Exchange does not believe that its proposals concerning 
Operational Halts impose an undue burden on competition. Under the 
existing Rules, the Exchange already possesses discretionary authority 
to impose Operational Halts for various reasons, including because of 
an order imbalance or influx that causes another national securities 
exchange to impose a trading halt in a security, or because another 
national securities exchange imposes an operational halt in a security 
that is a derivative or component of a security listed on BZX. As 
described earlier, the proposed Rule change clarifies and broadens the 
circumstances in which the Exchange may impose such Halts, and 
specified procedures for both imposing and lifting them. The Exchange 
does not intend for these proposals to have any competitive impact 
whatsoever. Indeed, the Exchange expects that other exchanges will 
adopt similar rules and procedures to govern operational halts, to the 
extent that they have not done so already.
    The Exchange does not believe that the proposed rule change imposes 
a burden on intramarket competition because the provisions apply to all 
market participants equally. In addition,

[[Page 13883]]

information regarding the halting and resumption of trading will be 
disseminated using several freely accessible sources to ensure broad 
availability of information in addition to the SIP data and proprietary 
data feeds offered by the Exchange and other SROs that are available to 
subscribers.
    In addition, the proposals include several provisions related to 
the declaration and timing of trading halts and the resumption of 
trading designed to avoid any advantage to those who can react more 
quickly than other participants. The proposed rule gives the Exchanges 
the ability to declare the timing of a Regulatory Halt immediately. The 
SROs retain the discretion to cancel trades that occur after the time 
of the Regulatory Halt. The proposals also allow for the staggered 
resumption of trading to assist firms in reentering the market after a 
SIP Halt affecting multiple securities, in order to reopen in a fair 
and orderly manner. In addition, the proposals encourage early and 
frequent communication among the SROs, SIPs and market participants to 
enable the dissemination of timely and accurate information concerning 
the market to market participants.

C. Self-Regulatory Organization's Statement on Comments on the Proposed 
Rule Change Received From Members, Participants, or Others

    The Exchange neither solicited nor received comments on the 
proposed rule change.

III. Date of Effectiveness of the Proposed Rule Change and Timing for 
Commission Action

    Because the foregoing proposed rule change does not:
    A. significantly affect the protection of investors or the public 
interest;
    B. impose any significant burden on competition; and
    C. become operative for 30 days from the date on which it was 
filed, or such shorter time as the Commission may designate, it has 
become effective pursuant to Section 19(b)(3)(A) of the Act \50\ and 
Rule 19b-4(f)(6) \51\ thereunder. At any time within 60 days of the 
filing of the proposed rule change, the Commission summarily may 
temporarily suspend such rule change if it appears to the Commission 
that such action is necessary or appropriate in the public interest, 
for the protection of investors, or otherwise in furtherance of the 
purposes of the Act. If the Commission takes such action, the 
Commission will institute proceedings to determine whether the proposed 
rule change should be approved or disapproved.
---------------------------------------------------------------------------

    \50\ 15 U.S.C. 78s(b)(3)(A).
    \51\ 17 CFR 240.19b-4(f)(6).
---------------------------------------------------------------------------

IV. Solicitation of Comments

    Interested persons are invited to submit written data, views and 
arguments concerning the foregoing, including whether the proposed rule 
change is consistent with the Act. Comments may be submitted by any of 
the following methods:

Electronic Comments

    <bullet> Use the Commission's internet comment form (<a href="https://www.sec.gov/rules/sro.shtml">https://www.sec.gov/rules/sro.shtml</a>); or
    <bullet> Send an email to <a href="/cdn-cgi/l/email-protection#790b0c151c541a1614141c170d0a390a1c1a571e160f"><span class="__cf_email__" data-cfemail="d0a2a5bcb5fdb3bfbdbdb5bea4a390a3b5b3feb7bfa6">[email&#160;protected]</span></a>. Please include 
file number SR-CboeBZX-2026-017 on the subject line.

Paper Comments

    <bullet> Send paper comments in triplicate to Secretary, Securities 
and Exchange Commission, 100 F Street NE, Washington, DC 20549-1090.

All submissions should refer to file number SR-CboeBZX-2026-017. This 
file number should be included on the subject line if email is used. To 
help the Commission process and review your comments more efficiently, 
please use only one method. The Commission will post all comments on 
the Commission's internet website (<a href="https://www.sec.gov/rules/sro.shtml">https://www.sec.gov/rules/sro.shtml</a>). Copies of the filing will be available for inspection and 
copying at the principal office of the Exchange. Do not include 
personal identifiable information in submissions; you should submit 
only information that you wish to make available publicly. We may 
redact in part or withhold entirely from publication submitted material 
that is obscene or subject to copyright protection. All submissions 
should refer to file number SR-CboeBZX-2026-017 and should be submitted 
on or before April 13, 2026.

    For the Commission, by the Division of Trading and Markets, 
pursuant to delegated authority.\52\
---------------------------------------------------------------------------

    \52\ 17 CFR 200.30-3(a)(12).
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Vanessa A. Countryman,
Secretary.
[FR Doc. 2026-05555 Filed 3-20-26; 8:45 am]
BILLING CODE 8011-01-P


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Indexed from Federal Register on March 23, 2026.

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