Document ID: SEC-2022-1407-0001
Agency: sec
Document Type: Notice
Title: Self-Regulatory Organizations; Proposed Rule Changes: Nasdaq MRX, LLC
Posted Date: 2022-10-27T04:00Z

[Federal Register Volume 87, Number 207 (Thursday, October 27, 2022)]
[Notices]
[Pages 65105-65108]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-23354]

[[Page 65105]]

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SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-96120; File No. SR-MRX-2022-21]

Self-Regulatory Organizations; Nasdaq MRX, LLC; Notice of Filing 
and Immediate Effectiveness of Proposed Rule Change To Amend Options 7 
in Connection With a Technology Migration

October 21, 2022.
    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 October 12, 2022, Nasdaq MRX, LLC (``MRX'' or ``Exchange'') filed 
with the Securities and Exchange Commission (``SEC'' or ``Commission'') 
the proposed rule change as described in Items I, II, and III, 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

    The Exchange proposes to amend MRX's Pricing Schedule at Options 
7.\3\
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    \3\ The Exchange initially filed the proposed pricing changes on 
September 30, 2022 as SR-MRX-2022-17. On October 12, 2022, the 
instant filing replaced SR-MRX-2022-17.
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    The text of the proposed rule change is available on the Exchange's 
website at https://listingcenter.nasdaq.com/rulebook/mrx/rules, at the 
principal office of the Exchange, 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
    MRX proposes to amend its Pricing Schedule at Options 7. 
Specifically, MRX proposes to: (1) add the defined term ``Exposed 
Order'' within Options 7, section 1(c); and (2) amend Options 7, 
section 6 to offer certain free ports in connection with an upcoming 
technology migration. Each change is described below.
Options 7, Section 1
    The Exchange proposes to define an Exposed Order for purposes of 
pricing within Options 7. The Exchange introduced the concept of an 
``exposure'' in a recent rule change amending MRX's routing rules.\4\ 
In that rule change, the Exchange noted that for purposes of MRX's 
Options 5, section 4 routing rule, ``exposure'' or ``exposing'' an 
order means a notification sent to Members with the price, size, and 
side of interest that is available for execution.\5\ The order exposure 
will apply to both routed orders and non-routed or ``DNR Orders.'' The 
order exposure process permits the Exchange to apply a Route Timer \6\ 
prior to the initial and subsequent routing of an order and allows 
routing of the order after exposure occurs (during open trading) every 
time an order becomes marketable against the ABBO.\7\
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    \4\ See Securities Exchange Act Release No. 94897 (May 12, 
2022), 87 FR 30294 (May 18, 2022) (SR-ISE-2022-11) (Notice of Filing 
and Immediate Effectiveness of Proposed Rule Change To Amend Routing 
Functionality in Connection With a Technology Migration). MRX's 
Options 5 rules are incorporated by reference to Nasdaq ISE, LLC 
Options 5 rules. This rule change was done in connection with a 
technology migration. SR-ISE-2022-11 will become operative for MRX 
prior to December 23, 2022. The Exchange proposes to announce the 
exact date when it will commence a limited symbol migration in an 
Options Trader Alert.
    \5\ See MRX Options 5, section 4(a) which is effective but not 
yet operative. See also Securities Exchange Act Release No. 94897 
(May 12, 2022), 87 FR 30294 (May 18, 2022) (SR-ISE-2022-11) (Notice 
of Filing and Immediate Effectiveness of Proposed Rule Change To 
Amend Routing Functionality in Connection With a Technology 
Migration).
    \6\ For purposes of Options 5, section 4, a Route Timer shall 
not exceed one second and shall begin at the time orders are 
accepted into the System, and the System will consider whether an 
order can be routed at the conclusion of each Route Timer.
    \7\ See MRX Options 5, section 4 which is effective but not yet 
operative. See also Securities Exchange Act Release No. 94897 (May 
12, 2022), 87 FR 30294 (May 18, 2022) (SR-ISE-2022-11) (Notice of 
Filing and Immediate Effectiveness of Proposed Rule Change To Amend 
Routing Functionality in Connection With a Technology Migration).

    At this time, the Exchange proposes to amend Options 7, section 
1(c) to provide, An ``Exposed Order'' is an order that is broadcast 
via an order exposure alert as described within Options 5, section 4 
(Order Routing). Unless otherwise noted in Options 7, section 3 
pricing, Exposed Orders will be assessed the applicable ``Taker'' 
Fee and any order or quote that executes against an Exposed Order 
during a Route Timer will be paid/assessed the applicable ``Maker'' 
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Rebate/Fee.

    As proposed, the defined term would apply a Taker Fee, where 
applicable, to an executed Exposed Order. If an order or quote 
allocates against the Exposed Order during the Route Timer described 
within Options 5, section 4, the Exchange would pay/assess the 
applicable Maker Rebate and/or Maker Fee. The Exchange believes that 
its proposal should provide increased opportunities for participation 
in executions on the Exchange, facilitating the ability of the Exchange 
to bring together participants and encourage more robust competition 
for orders.
Options 7, Section 6
    In connection with a technology migration,\8\ Members may request 
new FIX Ports,\9\ SQF Ports,\10\ SQF Purge

[[Page 65106]]

Ports,\11\ OTTO Ports,\12\ CTI Ports,\13\ and FIX DROP Ports,\14\ at no 
additional cost, from November 1, 2022 through December 30, 2022 
(``Transition Period'') which are duplicative of the type and quantity 
of their legacy ports. These second set of new ports would allow 
Members time to test ports to the new environment as well as provide 
continuous connection to the Exchange's match engine during the 
Transition Period.\15\ During the Transition Period, Members will be 
required to utilize their new ports on the new MRX platform for symbols 
that have migrated to the new platform, while continuing to leverage 
legacy ports for symbols that have not yet migrated to the new 
platform.\16\ For example, an MRX Member with 3 legacy SQF Ports, 1 
legacy SQF Purge Port, 1 legacy FIX DROP Port, 1 legacy OTTO Port, and 
1 legacy CTI Port on November 1, 2022 could request the equivalent 
quantity and type of new ports (3 SQF Ports, 1 SQF Purge Port, 1 FIX 
DROP Port, 1 OTTO Port, and 1 CTI Port) for the new MRX environment 
during the Transition Period at no additional cost. During the 
Transition Period, the MRX Member would be assessed only for legacy 
ports and would not be assessed for the new ports, which are 
duplicative of the legacy ports.
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    \8\ MRX is migrating its technology to an enhanced Nasdaq, Inc. 
functionality which results in higher performance, scalability, and 
more robust architecture. The technology migration would commence in 
November 2022.
    \9\ ``Financial Information eXchange'' or ``FIX'' is an 
interface that allows Members and their Sponsored Customers to 
connect, send, and receive messages related to orders and auction 
orders to the Exchange. Features include the following: (1) 
execution messages; (2) order messages; (3) risk protection triggers 
and cancel notifications; and (4) post trade allocation messages. 
See Supplementary Material .03(a) to Options 3, section 7.
    \10\ ``Specialized Quote Feed'' or ``SQF'' is an interface that 
allows Market Makers to connect, send, and receive messages related 
to quotes, Immediate-or-Cancel Orders, and auction responses to the 
Exchange. Features include the following: (1) options symbol 
directory messages (e.g., underlying and complex instruments); (2) 
system event messages (e.g., start of trading hours messages and 
start of opening); (3) trading action messages (e.g., halts and 
resumes); (4) execution messages; (5) quote messages; (6) Immediate-
or-Cancel Order messages; (7) risk protection triggers and purge 
notifications; (8) opening imbalance messages; (9) auction 
notifications; and (10) auction responses. The SQF Purge Interface 
only receives and notifies of purge requests from the Market Maker. 
Market Makers may only enter interest into SQF in their assigned 
options series. See Supplementary Material .03(c) to Options 3, 
section 7.
    \11\ SQF Purge is a specific port for the SQF interface that 
only receives and notifies of purge requests from the Market Maker. 
Dedicated SQF Purge Ports enable Market Makers to seamlessly manage 
their ability to remove their quotes in a swift manner.
    \12\ ``Ouch to Trade Options'' or ``OTTO'' is an interface that 
allows Members and their Sponsored Customers to connect, send, and 
receive messages related to orders, auction orders, and auction 
responses to the Exchange. Features include the following: (1) 
options symbol directory messages (e.g., underlying and complex 
instruments); (2) system event messages (e.g., start of trading 
hours messages and start of opening); (3) trading action messages 
(e.g., halts and resumes); (4) execution messages; (5) order 
messages; (6) risk protection triggers and cancel notifications; (7) 
auction notifications; (8) auction responses; and (9) post trade 
allocation messages. See Supplementary Material .03(b) to Options 3, 
section 7.
    \13\ Clearing Trade Interface (``CTI'') is a real-time cleared 
trade update message that is sent to a Member after an execution has 
occurred and contains trade details specific to that Member. The 
information includes, among other things, the following: (i) The 
Clearing Member Trade Agreement (``CMTA'') or The Options Clearing 
Corporation (``OCC'') number; (ii) badge or mnemonic; (iii) account 
number; (iv) information which identifies the transaction type 
(e.g., auction type) for billing purposes; and (v) market 
participant capacity. See Option 3, section 23(b)(1).
    \14\ FIX DROP is a real-time order and execution update message 
that is sent to a Member after an order been received/modified or an 
execution has occurred and contains trade details specific to that 
Member. The information includes, among other things, the following: 
(i) executions; (ii) cancellations; (iii) modifications to an 
existing order; and (iv) busts or post-trade corrections. See 
Options 3, section 23(b)(3).
    \15\ Members would contact Market Operations to acquire new 
duplicative ports.
    \16\ Options Trader Alert #2022-34 describes the symbol 
migration schedule which will begin in November 2022.
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    A Member may acquire additional legacy ports during the Transition 
Period and would be assessed the charges indicated in the current 
Pricing Schedule at Options 7, section 6, respectively, for those 
additional legacy ports.
    The technology migration does not require a Member to acquire any 
additional legacy ports or any specific number of new ports, rather the 
technology migration requires a new port to connect to the new MRX 
environment. As is the case today, a Member may decide the number of 
ports they desire to subscribe to on the new technology platform.\17\
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    \17\ The technology migration is 1:1 and therefore would not 
require a Member to acquire an additional quantity of new ports, nor 
would it reduce the total number of ports needed to connect to the 
match engine.
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    Of note, only MRX Members may utilize ports on MRX and only one 
port is necessary to submit orders to MRX. Similarly, a Market Maker 
quoting on MRX only requires 1 SQF Port.\18\ A Member may also obtain 
any number of order and execution ports, such as a SQF Purge Ports, FIX 
DROP Ports and CTI Ports and any number of market data ports.\19\ 
Members are able to elect the quantity and type of ports they purchase 
based on that Member's business model.\20\
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    \18\ SQF Ports are utilized solely by Market Makers who are the 
only Members permitted to quote on MRX.
    \19\ MRX does not assess fees for the market data ports within 
Options 7, section 6(iii). Members may acquire any number of market 
data ports at no cost.
    \20\ For example, a Member may desire to utilize multiple FIX or 
OTTO Ports for accounting purposes, to measure performance, for 
regulatory reasons or other determinations that are specific to that 
Member.
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    This proposal is not intended to impose any additional fees on any 
MRX Member. Rather, this proposal is intended to permit an MRX Member 
to utilize the new environment with the same type and quantity of 
legacy ports, at no additional cost, during the Transition Period.
    MRX will sunset legacy FIX Ports, SQF Ports, SQF Purge Ports, OTTO 
Ports, CTI Ports and FIX DROP Ports on December 30, 2022. After 
December 30, 2022, each Member would only be able to utilize the new 
ports for the new environment. Starting in January 2023, the port fees 
in Options 7, section 6 would apply to any substituted ports that a 
Member continues to subscribe to after the Transition Period.
2. Statutory Basis
    The Exchange believes that its proposal is consistent with section 
6(b) of the Act,\21\ in general, and furthers the objectives of 
sections 6(b)(4) and 6(b)(5) of the Act,\22\ in particular, in that it 
provides for the equitable allocation of reasonable dues, fees, and 
other charges among members and issuers and other persons using any 
facility, and is not designed to permit unfair discrimination between 
customers, issuers, brokers, or dealers.
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    \21\ See 15 U.S.C. 78f(b).
    \22\ See 15 U.S.C. 78f(b)(4) and (5).
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    The proposed changes to the Pricing Schedule are reasonable in 
several respects. As a threshold matter, the Exchange is subject to 
significant competitive forces in the market for order flow, which 
constrains its pricing determinations. The fact that the market for 
order flow is competitive has long been recognized by the courts. In 
NetCoalition v. Securities and Exchange Commission, the D.C. Circuit 
stated, ``[n]o one disputes that competition for order flow is 
`fierce.' . . . As the SEC explained, `[i]n the U.S. national market 
system, buyers and sellers of securities, and the broker-dealers that 
act as their order-routing agents, have a wide range of choices of 
where to route orders for execution'; [and] `no exchange can afford to 
take its market share percentages for granted' because `no exchange 
possesses a monopoly, regulatory or otherwise, in the execution of 
order flow from broker dealers'. . . .'' \23\
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    \23\ See NetCoalition, 615 F.3d at 539 (D.C. Cir. 2010) (quoting 
Securities Exchange Act Release No. 59039 (December 2, 2008), 73 FR 
74770, 74782-83 (December 9, 2008) (SR-NYSEArca-2006-21)).
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    The Commission and the courts have repeatedly expressed their 
preference for competition over regulatory intervention to determine 
prices, products, and services in the securities markets. In Regulation 
NMS, while adopting a series of steps to improve the current market 
model, the Commission highlighted the importance of market forces in 
determining prices and SRO revenues, and also recognized that current 
regulation of the market system ``has been remarkably successful in 
promoting market competition in its broader forms that are most 
important to investors and listed companies.'' \24\
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    \24\ See Securities Exchange Act Release No. 51808 (June 9, 
2005), 70 FR 37496, 37499 (June 29, 2005) (``Regulation NMS Adopting 
Release'').
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    Congress directed the Commission to ``rely on `competition, 
whenever possible, in meeting its regulatory responsibilities for 
overseeing the SROs

[[Page 65107]]

and the national market system.' '' \25\ As a result, the Commission 
has historically relied on competitive forces to determine whether a 
fee proposal is equitable, fair, reasonable, and not unreasonably or 
unfairly discriminatory. ``If competitive forces are operative, the 
self-interest of the exchanges themselves will work powerfully to 
constrain unreasonable or unfair behavior.'' \26\ Accordingly, ``the 
existence of significant competition provides a substantial basis for 
finding that the terms of an exchange's fee proposal are equitable, 
fair, reasonable, and not unreasonably or unfairly discriminatory.'' 
\27\
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    \25\ See NetCoalition, 615 F.3d at 534-35; see also H.R. Rep. 
No. 94-229 at 92 (1975) (``[I]t is the intent of the conferees that 
the national market system evolve through the interplay of 
competitive forces as unnecessary regulatory restrictions are 
removed.'').
    \26\ See Securities Exchange Act Release No. 59039 (December 2, 
2008), 73 FR 74,770 (December 9, 2008) (SR-NYSEArca-2006-21).
    \27\ Id.
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Options 7, Section 1
    The Exchange's proposal to define an Exposed Order for purposes of 
pricing within Options 7, section 1(c) is reasonable because it will 
provide Members information as to the manner in which pricing will be 
applied to both the Exposed Order as well as an order or quote that 
allocates against the Exposed Order.\28\ As proposed, the applicable 
Taker Fee would apply to an executed Exposed Order and the applicable 
Maker Rebate and/or Maker Fee would apply to an order or quote that 
allocated against the Exposed Order during the Route Timer. The 
Exchange believes the proposed pricing should provide increased 
opportunities for participation in executions on the Exchange, 
facilitating the ability of the Exchange to bring together participants 
and encourage more robust competition for orders. Order exposure has 
the potential to result in more efficient executions for participants 
as responses to exposed orders could result in faster executions. Order 
exposure assures that such exposed orders will only receive executions 
at a price at least as good as the price disseminated by the best away 
market at the time the order was received.
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    \28\ See Option 5, section 4.
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    The Exchange's proposal to define an Exposed Order for purposes of 
pricing within Options 7, section 1(c) is equitable and not unfairly 
discriminatory as the proposed pricing for Exposed Orders would be 
uniformly applied to all orders subject to the Exchange's Route Timer, 
as described in Options 5, section 4.
Options 7, Section 6
    The proposed amendments to Options 7, section 6 to permit Members 
to acquire a second set of FIX Ports, SQF Ports, SQF Purge Ports, OTTO 
Ports, CTI Ports and FIX DROP Ports, at no cost, as part of the 
technology migration are reasonable because they will permit MRX 
Members to migrate to the new platform without a pricing impact. 
Specifically, the proposal is intended to permit MRX Members to migrate 
their legacy FIX Ports, SQF Ports, SQF Purge Ports, OTTO Ports, CTI 
Ports and FIX DROP Ports to new ports at no additional cost during the 
Transition Period. This proposal will allow Members to test their ports 
and maintain continuous connection to the Exchange's match engine 
during the Transition Period.
    The proposed amendments to Options 7, section 6 to permit Members 
to acquire a second set of FIX Ports, SQF Ports, SQF Purge Ports, OTTO 
Ports, CTI Ports and FIX DROP Ports, at no cost, as part of the 
technology migration are equitable and not unfairly discriminatory 
because no Member would have a pricing impact as a result of this 
proposal, provided the Member did not obtain additional new ports to 
connect to the MRX environment beyond the quantity and type the Member 
had on November 1, 2022 or additional legacy ports. No Member would be 
assessed a fee for the new second set of ports, provided they acquired 
a new second set of ports commiserate with the type and quantity of 
ports they subscribed to as of November 1, 2022. A Member obtaining 
additional legacy ports, beyond the current type and quantity of ports 
they have as of November 1, 2022, would be assessed the fees noted in 
Options 7, section 6 as applicable. MRX will sunset legacy FIX Ports, 
SQF Ports, SQF Purge Ports, OTTO Ports, CTI Ports and FIX DROP Ports on 
December 30, 2022, so no Member would have a second type or quantity of 
a particular port as of December 30, 2022. Starting in January 2023, 
the port fees in Options 7, section 6 would apply to any substituted 
ports that a Member continues to subscribe to after the Transition 
Period.
    The technology migration does not require a Member to acquire any 
additional quantity of new ports, nor would it reduce the total number 
of ports needed to connect to the match engine. Rather the technology 
migration requires a new port to replace any legacy port provided the 
Member desired to maintain the same number of ports on the new MRX 
technology platform. Of note, only MRX Members may utilize ports on MRX 
and only one port is necessary to submit orders to MRX. Similarly, a 
Market Maker quoting on MRX only requires 1 SQF Port.\29\ A Member may 
also obtain any number of order and execution ports, such as a SQF 
Purge Ports, FIX DROP Ports and CTI Ports and any number of market data 
ports.\30\ Members are able to elect the quantity and type of ports 
they purchase based on that Member's business model.\31\
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    \29\ SQF Ports are utilized solely by Market Makers who are the 
only Members permitted to quote on MRX.
    \30\ MRX does not assess fees for the market data ports within 
Options 7, section 6(iii). Members may acquire any number of market 
data ports at no cost.
    \31\ For example, a Member may desire to utilize multiple FIX or 
OTTO Ports for accounting purposes, to measure performance, for 
regulatory reasons or other determinations that are specific to that 
Member.
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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 not necessary or appropriate in 
furtherance of the purposes of the Act.
    The Exchange believes its proposal remains competitive with other 
options markets, and will offer market participants with another choice 
of venue to transact options. The Exchange notes that it operates in a 
highly competitive market in which market participants can readily 
favor competing venues if they deem fee levels at a particular venue to 
be excessive, or rebate opportunities available at other venues to be 
more favorable. Because competitors are free to modify their own fees 
in response, and because market participants may readily adjust their 
order routing practices, the Exchange believes that the degree to which 
fee changes in this market may impose any burden on competition is 
extremely limited.
Intramarket Competition
Options 7, Section 1
    The Exchange's proposal to define an Exposed Order for purposes of 
pricing within Options 7, section 1(c) does not impose an undue burden 
on competition because the proposed pricing for Exposed Orders would be 
uniformly applied to all orders subject to the Exchange's Route Timer, 
as described in Options 4, section 5.
Options 7, Section 6
    The proposed amendments to Options 7, section 6 to permit Members 
to acquire a second set of FIX Ports, SQF Ports, SQF Purge Ports, OTTO 
Ports, CTI

[[Page 65108]]

Ports and FIX DROP Ports, at no cost, as part of the technology 
migration do not impose an undue burden on competition because no 
Member would have a pricing impact as a result of this proposal, 
provided the Member did not obtain additional new ports to connect to 
the MRX environment beyond the quantity and type the Member had on 
November 1, 2022 or additional legacy ports. No Member would be 
assessed a fee for the new second set of ports, provided they acquired 
a new second set of ports commiserate with the type and quantity of 
ports they subscribed to as of November 1, 2022. A Member obtaining 
additional legacy ports, beyond the current type and quantity of ports 
they have as of November 1, 2022, would be assessed the fees noted in 
Options 7, section 6 as applicable. MRX will sunset legacy FIX Ports, 
SQF Ports, SQF Purge Ports, OTTO Ports, CTI Ports and FIX DROP Ports on 
December 30, 2022, so no Member would have a second type or quantity of 
a particular port as of December 30, 2022. Starting in January 2023, 
the port fees in Options 7, section 6 would apply to any substituted 
ports that a Member continues to subscribe to after the Transition 
Period.

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

    No written comments were either solicited or received.

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

    The foregoing rule change has become effective pursuant to section 
19(b)(3)(A)(ii) of the Act.\32\ 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: (i) necessary or appropriate in the public 
interest; (ii) for the protection of investors; or (iii) otherwise in 
furtherance of the purposes of the Act. If the Commission takes such 
action, the Commission shall institute proceedings to determine whether 
the proposed rule should be approved or disapproved.
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    \32\ 15 U.S.C. 78s(b)(3)(A)(ii).
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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

     Use the Commission's internet comment form (http://www.sec.gov/rules/sro.shtml); or
     Send an email to [email protected]. Please include 
File Number SR-MRX-2022-21 on the subject line.

Paper Comments

     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-MRX-2022-21. 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 (http://www.sec.gov/rules/sro.shtml). 
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 10:00 a.m. and 
3:00 p.m. Copies of the filing also will be available for inspection 
and copying at the principal office of the Exchange. All comments 
received will be posted without change. Persons submitting comments are 
cautioned that we do not redact or edit personal identifying 
information from comment submissions. You should submit only 
information that you wish to make available publicly. All submissions 
should refer to File Number SR-MRX-2022-21 and should be submitted on 
or before November 17, 2022.

    For the Commission, by the Division of Trading and Markets, 
pursuant to delegated authority.\33\
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    \33\ 17 CFR 200.30-3(a)(12).
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J. Matthew DeLesDernier,
Deputy Secretary.
[FR Doc. 2022-23354 Filed 10-26-22; 8:45 am]
BILLING CODE 8011-01-P