Notice2025-13801

Self-Regulatory Organizations; MEMX LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Rule 2.3, To Adopt Rule 2.12 (MEMX Execution Services as Inbound Router), To Make a Corresponding Update in Rule 2.11 (MEMX Execution Services as Outbound Router), and To Remove Obsolete Rule Text in Rule 2.4(c)

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Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
July 23, 2025

Issuing agencies

Securities and Exchange Commission

Full Text

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<title>Federal Register, Volume 90 Issue 139 (Wednesday, July 23, 2025)</title>
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[Federal Register Volume 90, Number 139 (Wednesday, July 23, 2025)]
[Notices]
[Pages 34697-34700]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-13801]


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SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-103496; File No. SR-MEMX-2025-22]


Self-Regulatory Organizations; MEMX LLC; Notice of Filing and 
Immediate Effectiveness of a Proposed Rule Change To Amend Rule 2.3, To 
Adopt Rule 2.12 (MEMX Execution Services as Inbound Router), To Make a 
Corresponding Update in Rule 2.11 (MEMX Execution Services as Outbound 
Router), and To Remove Obsolete Rule Text in Rule 2.4(c)

July 18, 2025.
    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 July 15, 2025, MEMX LLC (``MEMX'' or the ``Exchange'') filed 
with the Securities and Exchange Commission (the ``Commission'') the 
proposed rule change as described in Items I and II below, which Items 
have been prepared by the Exchange. The Exchange filed the proposal as 
a ``non-controversial'' proposed rule change pursuant to

[[Page 34698]]

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).
    \4\ 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

    The Exchange is filing with the Commission a proposal to amend Rule 
2.3 to clarify that a broker or dealer must be a member of another 
national securities exchange or association other than MX2 LLC 
(``MX2'') in order become or remain a Member of the Exchange, to adopt 
Rule 2.12 (MEMX Execution Services LLC as Inbound Router), and to make 
a relevant corresponding update in Rule 2.11 (MEMX Execution Services 
LLC as Outbound Router). The Exchange also proposes to remove the text 
of Rule 2.4(c) because this section of the Rule is now obsolete given 
it references a calendar year that has passed. The text of the proposed 
rule change is provided in Exhibit 5 and is available on the Exchange's 
website at <a href="https://info.memxtrading.com/regulation/rules-and-filings/">https://info.memxtrading.com/regulation/rules-and-filings/</a>.

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
    On March 13, 2025, the Commission approved the application of MX2, 
an affiliate of the Exchange, to register as a national securities 
exchange.\5\ Included in the approved rules of MX2 are: (1) MX2 Rule 
2.3, which notes that a broker or dealer must be a member of another 
national securities exchange or association other than or in addition 
to MEMX in order to become or remain a Member of MX2, and (2) MX2 Rule 
2.12, which governs the routing of orders by MX2's (and the Exchange's) 
affiliated broker-dealer, MEMX Execution Services LLC (``MEMX Execution 
Services'') to MX2 as inbound router in its capacity as a routing 
facility of the Exchange. Accordingly, the Exchange is proposing: (1) 
to amend its Rule 2.3 to clarify that a broker or dealer must be a 
member of another national securities exchange or association other 
than or in addition to MX2 in order to become or remain a Member of the 
Exchange, and (2) to adopt the same inbound routing rule, also numbered 
Rule 2.12, which will govern MEMX Execution Services' status as an 
inbound router that sends orders to the Exchange in its capacity as a 
routing facility of MX2, and to make a relevant corresponding update in 
Rule 2.11 (MEMX Execution Services LLC as Outbound Router). Lastly, the 
Exchange proposes to remove the text of Rule 2.4(c) because this 
section of the Rule is now obsolete given it references a calendar year 
that has passed.
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    \5\ See Securities Exchange Act Release No. 102650 (March 13, 
2025) 90 FR 12590 (March 18, 2025) (File No.10-247) (order approving 
application of MX2, LLC for registration as a national securities 
exchange).
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Amend Rule 2.3 To Reflect Existence of MX2
    As noted above, pursuant to Rule 2.3, the Exchange requires all of 
its Members to be a member of at least one other national securities 
association or national securities exchange in order to become and 
remain a Member of the Exchange. Given the recent approval of the 
Exchange's affiliate, MX2, the Exchange is now proposing to make clear 
that this requirement is not satisfied simply by joining MX2. Rather, 
as the proposed language indicates, each Member that is a registered 
broker or dealer must be a member of another registered national 
securities exchange or association other than or in addition to MX2. 
The Exchange notes that this language aligns with that of MX2's Rule 
2.3, which indicates that each Member of MX2 must be a member of 
another registered national securities exchange or association other 
than or in addition to MEMX.
Adoption of Rule 2.12 and Corresponding Edit to Rule 2.11
    Also in light of the approval of MX2, the Exchange is proposing to 
adopt Rule 2.12, which is substantively identical to the same MX2 rule 
and which will govern MEMX Execution Services' status as an inbound 
router that sends orders to the Exchange in its capacity as a routing 
facility of MX2. Pursuant to proposed Rule 2.12, MEMX Execution 
Services' inbound routing services from MX2 to the Exchange would be 
subject to the following conditions and limitations:
    (1) The Exchange must enter into (1) a plan pursuant to Rule 17d-2 
under the Act with a non-affiliated self-regulatory organization 
(``SRO'') to relieve the Exchange of regulatory responsibilities for 
MEMX Execution Services with respect to rules that are common rules 
between the Exchange and the non-affiliated SRO, and (2) a regulatory 
services contract with a non-affiliated SRO to perform regulatory 
responsibilities for MEMX Execution Services for unique Exchange rules.
    (2) The regulatory services contract must require the Exchange to 
provide the non-affiliated SRO with information, in an easily 
accessible manner, regarding all exception reports, alerts, complaints, 
trading errors, cancellations, investigations, and enforcement matters 
(collectively ``Exceptions'') in which MEMX Execution Services is 
identified as a participant that has potentially violated Exchange or 
Commission Rules, and requires that non-affiliated SRO provide a 
report, at least quarterly, to the Exchange quantifying all Exceptions 
in which MEMX Execution Services is identified as a participant that 
has potentially violated Exchange or Commission rules.
    (3) The Exchange, on behalf of the holding company owning the 
Exchange and MEMX Execution Services, must establish and maintain 
procedures and internal controls reasonably designed to ensure that 
MEMX Execution Services does not develop or implement changes to its 
system based on non-public information obtained as a result of its 
affiliation with the Exchange, until such information is available 
generally to similarly situated members of the Exchange in connection 
with the provision of inbound order routing to the Exchange.
    (4) The Exchange may furnish to MEMX Execution Services the same 
information on the same terms that the Exchange makes available in the 
normal course of business to any other User.
    Proposed Rule 2.12(b) also notes that provided the above conditions 
are complied with, and provided further that MEMX Execution Services 
operates as an outbound router on behalf of MX2 on the same terms and 
conditions it does for the Exchange, and in accordance with the rules 
of MX2, MEMX Execution Services may provide inbound routing services to 
the Exchange from MX2.
    In addition to the adoption of an inbound routing rule, the 
Exchange proposes minor modifications to its existing rule applicable 
to MEMX

[[Page 34699]]

Execution Services' status as an outbound router. Specifically, Rule 
2.11 currently states that MEMX Execution Services will not engage in 
any business other than its outbound router function and any other 
activities it may engage in as approved by the Commission. The Exchange 
proposes to add acting as inbound router to the list of activities in 
which MEMX Execution Services will engage.
Deletion of Obsolete Rule 2.4(c)
    Lastly, the Exchange is proposing to delete section (c) under Rule 
2.4, Mandatory Participation in Testing of Backup Systems. This 
provision specifies the Exchange's procedure for testing MEMX Options' 
backup systems during the calendar year 2023, which has passed, and as 
such, this provision is obsolete. Accordingly, the Exchange proposes to 
delete this provision under Rule 2.4.
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.\6\ Specifically, the Exchange believes the proposed rule change is 
consistent with the Section 6(b)(5) \7\ 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) \8\ requirement that the rules of 
an exchange not be designed to permit unfair discrimination between 
customers, issuers, brokers, or dealers.
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    \6\ 15 U.S.C. 78f(b).
    \7\ 15 U.S.C. 78f(b)(5).
    \8\ Id.
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    In particular, the Exchange believes that the proposed rule change 
will 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 by aligning the Exchange's rules with 
the same rules in the rulebook of MX2, which is affiliated with the 
Exchange. Specifically, the adoption of Rule 2.3 provides clarity to 
Members regarding the requirement that each Member that is a registered 
broker or dealer must be a member of another registered national 
securities exchange or association other than or in addition to MX2. 
With respect to the adoption of Rule 2.12 and the associated added 
reference in Rule 2.11, the proposed rule change will allow the 
Exchange to receive inbound routed orders from MEMX Execution Services 
acting in its capacity as a facility of MX2 in a manner consistent with 
prior approvals and established protections. The proposed deletion of 
Rule 2.4(c) is to help avoid any potential confusion resulting from 
retaining outdated provisions in the Exchange's rulebook. For these 
reasons, the Exchange believes such amendments would enable the 
Exchange to be so organized as to have the capacity to carry out the 
purposes of the Act and to comply with the provisions of the Act, the 
rules and regulations thereunder, and the rules of the Exchange, 
promote just and equitable principles of trade, remove impediments to 
and perfect the mechanism of a free and open market, and protect 
investors and the public interest.

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 proposed changes are not 
designed to address any competitive issues, but rather to update the 
Exchange's rules in light of the recent approval of MX2's application 
for registration as a national securities exchange, including 
clarification under Rule 2.3 that a Member must be registered with 
another national securities exchange other than MX2 in order to retain 
its membership or become a Member the Exchange, as well as the adoption 
of relevant rule text regarding the routing of orders from MX2 via MEMX 
Execution Services. As noted above, MX2 has the same rules in place, 
and those rules ensure that MEMX Execution Services cannot use any 
information that it may have because of its affiliation with the 
Exchange to its advantage, thus preventing an unfair burden on 
competition.
    The Exchange does not believe that the proposed rule change to 
delete obsolete rule text in Rule 2.4 imposes any burden on 
competition, as it is a non-substantive change concerned solely with 
the removal of rule text that is no longer applicable.

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

    The proposed rule change is filed for immediate effectiveness 
pursuant to Section 19(b)(3)(A) of Act \9\ and Rule 19b-4(f)(6) \10\ 
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; and (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)(iii) of the Act \11\ and 
subparagraph (f)(6) of Rule 19b-4 thereunder.\12\
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    \9\ 15 U.S.C. 78s(b)(3)(A).
    \10\ 17 CFR 240.19b-4(f)(6).
    \11\ 15 U.S.C. 78s(b)(3)(A)(iii).
    \12\ 17 CFR 240.19b-4(f)(6). In addition, Rule 19b-4(f)(6)(iii) 
requires a self-regulatory organization 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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    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#97e5e2fbf2baf4f8fafaf2f9e3e4d7e4f2f4b9f0f8e1"><span class="__cf_email__" data-cfemail="c0b2b5aca5eda3afadada5aeb4b380b3a5a3eea7afb6">[email&#160;protected]</span></a>. Please include 
file number SR-MEMX-2025-22 on the subject line.

[[Page 34700]]

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-MEMX-2025-22. 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 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-MEMX-2025-22 and should be submitted on 
or before August 13, 2025.

    For the Commission, by the Division of Trading and Markets, 
pursuant to delegated authority.\13\
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    \13\ 17 CFR 200.30-3(a)(12).
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Sherry R. Haywood,
Assistant Secretary.
[FR Doc. 2025-13801 Filed 7-22-25; 8:45 am]
BILLING CODE 8011-01-P


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