Notice2025-11874

Self-Regulatory Organizations; Cboe BYX Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Rule 4.10 of the Exchange's Compliance Rule To Be Consistent With the Exemptive Relief Granted by the Commission From Certain Provisions Related to Timestamp Granularity

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Published
June 27, 2025

Issuing agencies

Securities and Exchange Commission

Full Text

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<title>Federal Register, Volume 90 Issue 122 (Friday, June 27, 2025)</title>
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[Federal Register Volume 90, Number 122 (Friday, June 27, 2025)]
[Notices]
[Pages 27734-27737]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-11874]


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SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-103305; File No. SR-CboeBYX-2025-015]


Self-Regulatory Organizations; Cboe BYX Exchange, Inc.; Notice of 
Filing and Immediate Effectiveness of a Proposed Rule Change To Amend 
Rule 4.10 of the Exchange's Compliance Rule To Be Consistent With the 
Exemptive Relief Granted by the Commission From Certain Provisions 
Related to Timestamp Granularity

June 24, 2025.
    Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 
(``Act''),\1\ and Rule 19b-4 thereunder,\2\ notice is hereby given that 
on June 18, 2025, Cboe BYX Exchange, Inc. (``BYX'' or the ``Exchange'') 
filed with the Securities and Exchange Commission (``Commission'') the 
proposed rule change as described in Items I and II below, which Items 
have been prepared by the Exchange. 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.
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I. Self-Regulatory Organization's Statement of the Terms of Substance 
of the Proposed Rule Change

    Cboe BYX Exchange, Inc. (the ``Exchange'' or ``BYX'') proposes to 
amend Rule 4.10 of the Exchange's compliance rule (``CAT Compliance 
Rule'') regarding the National Market System Plan Governing the 
Consolidated Audit Trail (the ``CAT NMS Plan'' or ``Plan'') \3\ to be 
consistent with the exemptive relief granted by the Securities and 
Exchange Commission (the ``Commission'') from certain provisions of the 
CAT NMS Plan related to timestamp granularity (``2025 Timestamp 
Granularity Exemption'').\4\ Specifically, the Exchange proposes to 
update the expiration date of the exemption in Rule 4.10(a)(2) from 
April

[[Page 27735]]

8, 2025 to April 8, 2030. The text of the proposed rule change is 
provided in Exhibit 5.
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    \3\ Unless otherwise specified, capitalized terms used in this 
rule filing are defined as set forth in the CAT Compliance Rule. See 
Chapter IV, Rules 4.5--4.17 of the Exchange's Rulebook.
    \4\ Securities Exchange Act Rel. No. 102980 (May 2, 2025), 90 FR 
19334 (May 7, 2025).
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    The text of the proposed rule change is also available on the 
Exchange's website (<a href="http://markets.cboe.com/us/equities/regulation/rule_filings/byx/">http://markets.cboe.com/us/equities/regulation/rule_filings/byx/</a>), at the Exchange's Office of the Secretary, and at 
the Commission's Public Reference Room.

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
    The purpose of this proposed rule change is to amend Rule 4.10 of 
the CAT Compliance Rule to be consistent with the 2025 Timestamp 
Granularity Exemption. Under the 2025 Timestamp Granularity Exemption, 
the Commission extended the existing exemptive relief pursuant to which 
Industry Members that capture timestamps in increments more granular 
than nanoseconds must truncate the timestamps after the nanosecond 
level for submission to CAT, rather than rounding such timestamps up or 
down, from April 8, 2025 to April 8, 2030. Accordingly, the Exchange 
proposes to update the expiration date of the exemption in Rule 
4.10(a)(2) from April 8, 2025 to April 8, 2030.
    On February 3, 2020, the Participants filed with the Commission a 
request for exemptive relief from the requirement in Section 6.8(b) of 
the CAT NMS Plan for each Participant, through its CAT Compliance Rule, 
to require that, to the extent that its Industry Members utilize 
timestamps in increments finer than nanoseconds in their order handling 
or execution systems, such Industry Members utilize such finer 
increment when reporting CAT Data to the Central Repository.\5\ On 
April 8, 2020, the Participants received the requested exemptive 
relief.\6\ As a condition to this exemption, the Participants, through 
their CAT Compliance Rules, required Industry Members that capture 
timestamps in increments more granular than nanoseconds to truncate the 
timestamps after the nanosecond level for submission to CAT, rather 
than rounding up or down in such circumstances. The exemption was to 
remain in effect for five years, until April 8, 2025.
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    \5\ See Letter to Vanessa Countryman, Secretary, Commission, 
from Michael Simon, CAT NMS Plan Operating Committee Chair, re: 
Request for Exemption from Certain Provisions of the National Market 
System Plan Governing the Consolidated Audit Trail related to 
Granularity of Timestamps and Relationship Identifiers (Feb. 3, 
2020).
    \6\ See Securities Exchange Act Release No. 88608 (April 8, 
2020), 85 FR 20743 (April 14, 2020).
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    In 2020, the Exchange amended paragraph (a)(2) of Rule 4.10 to 
reflect this exemptive relief.\7\ Specifically, the Exchange amended 
Rule 4.10(a)(2) to state the following.
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    \7\ See Securities Exchange Act Release No. 89138 (June 23, 
2020), 85 FR 38987 (June 29, 2020) (SR-CboeBYX-2020-019).

    Subject to paragraph (b), to the extent that any Industry 
Member's order handling or execution systems utilize time stamps in 
increments finer than milliseconds, such Industry Member shall 
record and report Industry Member Data to the Central Repository 
with time stamps in such finer increment up to nanoseconds; 
provided, that Industry Members that capture timestamps in 
increments more granular than nanoseconds must truncate the 
timestamps after the nanosecond level for submission to CAT, rather 
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than rounding such timestamps up or down, until April 8, 2025.

    The language of Rule 4.10(a)(2) has not been changed since that 
time.
    The exemption granted in 2020, however would no longer be in effect 
after April 8, 2025, unless the period the exemption is in effect is 
extended by the Commission. Accordingly, on March 24, 2025, the 
Participants filed with the Commission a request to extend the existing 
exemptive relief for another five years, until April 8, 2030.\8\ On May 
2, 2025, the Participants received the requested exemptive relief from 
the Commission via the 2025 Timestamp Granularity Exemption. As a 
condition to this exemption, the Participants, through their CAT 
Compliance Rules, are required to require Industry Members that capture 
timestamps in increments more granular than nanoseconds to truncate the 
timestamps after the nanosecond level for submission to CAT, rather 
than rounding up or down in such circumstances. The Commission granted 
the 2025 Timestamp Granularity Exemption for a period of five years, 
until April 8, 2030.
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    \8\ See Letter to Vanessa Countryman, Secretary, Commission, 
from Brandon Becker, CAT NMS Plan Operating Committee Chair, re: 
Request for Exemption from Certain Provisions of the National Market 
System Plan Governing the Consolidated Audit Trail related to 
Timestamp Granularity (Mar. 24, 2025).
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    Accordingly, the Exchange proposes to amend its CAT Compliance Rule 
to reflect the extended period set forth in the 2025 Timestamp 
Granularity Exemption, replacing the reference to April 8, 2025 with 
April 8, 2030. Specifically, the Exchange proposes to amend paragraph 
(a)(2) of Rule 4.10 to state:

    Subject to paragraph (b), to the extent that any Industry 
Member's order handling or execution systems utilize time stamps in 
increments finer than milliseconds, such Industry Member shall 
record and report Industry Member Data to the Central Repository 
with time stamps in such finer increment up to nanoseconds; 
provided, that Industry Members that capture timestamps in 
increments more granular than nanoseconds must truncate the 
timestamps after the nanosecond level for submission to CAT, rather 
than rounding such timestamps up or down, until April 8, 2030.
2. Statutory Basis
    The Exchange believes the proposed rule change is consistent with 
the Securities Exchange Act of 1934 (the ``Act'') and the rules and 
regulations thereunder applicable to the Exchange and, in particular, 
the requirements of Section 6(b) of the Act.\9\ Specifically, the 
Exchange believes the proposed rule change is consistent with the 
Section 6(b)(5) \10\ 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) \11\ requirement that the rules of an exchange not be 
designed to permit unfair discrimination between customers, issuers, 
brokers, or dealers.
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    \9\ 15 U.S.C. 78f(b).
    \10\ 15 U.S.C. 78f(b)(5).
    \11\ Id.
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    In particular, the Exchange believes that this proposal is 
consistent with the Act because it is consistent with the exemptive 
relief that has been in place for five years, is consistent with the 
2025 Timestamp Granularity Exemption, and is designed to assist the

[[Page 27736]]

Exchange and its Industry Members in meeting regulatory obligations 
pursuant to the Plan. In approving the Plan, the Commission noted that 
the Plan ``is necessary and appropriate in the public interest, for the 
protection of investors and the maintenance of fair and orderly 
markets, to remove impediments to, and perfect the mechanism of a 
national market system, or is otherwise in furtherance of the purposes 
of the Act.'' \12\ To the extent that this proposal implements the 
Plan, including the exemptive relief related thereto, and applies 
specific requirements to Industry Members, the Exchange believes that 
this proposal furthers the objectives of the Plan, as identified by the 
Commission, and is therefore consistent with the Act.
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    \12\ See Securities Exchange Act Release No. 79318 (November 15, 
2016), 81 FR 84696, 84697 (November 23, 2016).
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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. The Exchange notes that the 
proposed rule change is consistent with the exemptive relief that has 
been in place for five years, is consistent with the 2025 Timestamp 
Granularity Exemption, and is designed to assist the Exchange in 
meeting its regulatory obligations pursuant to the Plan. The Exchange 
also notes that the amendment to the CAT Compliance Rule will apply 
equally to all Industry Members that trade NMS Securities and OTC 
Equity Securities. In addition, all national securities exchanges and 
FINRA are proposing these amendments to their CAT Compliance Rules. 
Therefore, this is not a competitive rule filing, and, therefore, it 
does not impose a burden on competition.

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 written comments on the 
proposed rule change.

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

    The Exchange has filed the proposed rule change pursuant to Section 
19(b)(3)(A) of the Act \13\ and Rule 19b-4(f)(6) \14\ thereunder. 
Because the foregoing proposed rule change does not: (i) significantly 
affect the protection of investors or the public interest; (ii) impose 
any significant burden on competition; or (iii) 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 \15\ and Rule 19b-4(f)(6) \16\ thereunder.
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    \13\ 15 U.S.C. 78s(b)(3)(A).
    \14\ 17 CFR 240.19b-4(f)(6).
    \15\ 15 U.S.C. 78s(b)(3)(A).
    \16\ 17 CFR 240.19b-4(f)(6). In addition, Rule 19b-4(f)(6)(iii) 
requires the Exchange to give the Commission written notice of its 
intent to file the proposed rule change, along with a brief 
description and text of the proposed rule change, at least five 
business days prior to the date of filing of the proposed rule 
change, or such shorter time as designated by the Commission. The 
Exchange has satisfied this requirement.
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    A proposed rule change filed under Rule 19b-4(f)(6) \17\ normally 
does not become operative prior to 30 days after the date of the 
filing. However, pursuant to Rule 19b-4(f)(6)(iii),\18\ the Commission 
may designate a shorter time if such action is consistent with 
protection of investors and the public interest. The Exchange has asked 
the Commission to waive the 30-day operative delay so that the proposed 
rule change may become operative immediately upon filing. The 
Commission believes that waiving the 30-day operative delay is 
consistent with the protection of investors and the public interest 
because the proposal seeks to amend the Exchange's CAT Compliance Rule 
to reflect the expiration date for exemptive relief relating to 
timestamp granularity approved by the Commission on May 2, 2025, and 
the proposal does not introduce any novel regulatory issues. 
Accordingly, the Commission designates the proposed rule change to be 
operative upon filing.\19\
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    \17\ 17 CFR 240.19b-4(f)(6).
    \18\ 17 CFR 240.19b-4(f)(6)(iii).
    \19\ For purposes only of waiving the 30-day operative delay, 
the Commission also has considered the proposed rule's impact on 
efficiency, competition, and capital formation. See 15 U.S.C. 
78c(f).
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    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.

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#651710090048060a0808000b1116251600064b020a13"><span class="__cf_email__" data-cfemail="6d1f180108400e0200000803191e2d1e080e430a021b">[email&#160;protected]</span></a>. Please include 
file number SR-CboeBYX-2025-015 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-CboeBYX-2025-015. 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 submission, all subsequent amendments, all 
written statements with respect to the proposed rule change that are 
filed with the Commission, and all written communications relating to 
the proposed rule change between the Commission and any person, other 
than those that may be withheld from the public in accordance with the 
provisions of 5 U.S.C. 552, will be available for website viewing and 
printing in the Commission's Public Reference Room, 100 F Street NE, 
Washington, DC 20549, on official business days between the hours of 10 
a.m. and 3 p.m. Copies of the filing also 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-CboeBYX-2025-015 and should 
be submitted on or before July 18, 2025.


[[Page 27737]]


    For the Commission, by the Division of Trading and Markets, 
pursuant to delegated authority.\20\
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    \20\ 17 CFR 200.30-3(a)(12) and (59).
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Sherry R. Haywood,
Assistant Secretary.
[FR Doc. 2025-11874 Filed 6-26-25; 8:45 am]
BILLING CODE 8011-01-P


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