[Federal Register Volume 90, Number 242 (Friday, December 19, 2025)]
[Notices]
[Pages 59608-59617]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-23331]


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SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-104410; File No. SR-CboeBZX-2025-158]


Self-Regulatory Organizations; Cboe BZX Exchange, Inc.; Notice of 
Filing and Immediate Effectiveness of a Proposed Rule Change To Adopt 
Fees for New Logical Ports in Connection With a New Connectivity 
Offering on Its Equity Options Platform

December 16, 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 December 4, 2025, 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 
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 BZX Exchange, Inc. (the ``Exchange'' or ``BZX'') proposes to 
adopt fees for new logical ports in connection with a new connectivity 
offering on its equity options platform. 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 (https://www.sec.gov/rules/sro.shtml), the 
Exchange's website (https://www.cboe.com/us/equities/regulation/rule_filings/bzx/), and at the principal office of the Exchange.

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 Exchange proposes to amend its fee schedule to adopt fees for 
Unitized Logical Ports, a new connectivity offering for its equity 
options platform (``BZX Options'') and adopt new Average Daily Quote 
and Average Daily Order fees.\3\
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    \3\ The Exchange initially submitted the proposed rule change on 
August 30, 2024 and was effective September 3, 2024 (SR-CboeBZX-
2024-082). On September 13, 2024, the Exchange withdrew that filing 
and submitted SR-CboeBZX-2024-088. On November 12, 2024, the 
Exchange withdrew that filing and submitted SR-CboeBZX-2024-113. On 
December 20, 2024, the Exchange withdrew that filing and submitted 
SR-CboeBZX-2024-131. On February 3, 2025, the Exchange withdrew that 
filing and submitted SR-CboeBZX-2025-016. On April 4, the Exchange 
withdrew that filing and submitted SR-Cboe-BZX-2025-052. On June 2, 
2025, the Exchange withdrew that filing and submitted SR-Cboe-BZX-
2025-075. On July 31, 2025, the Exchange withdrew that filing and 
submitted SR-CboeBZX-2025-107. On September 26, 2025, the Exchange 
submitted SR-CboeBZX-2025-134. On November 24, 2025, the Exchange 
withdrew that filing and submitted SR-CboeBZX-2025-152. On December 
4, 2025, the Exchange withdrew that filing and submitted this 
filing.

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[[Page 59609]]

Unitized Port Fees
    By way of background, Exchange Members may interface with the 
Exchange's Trading System \4\ (hereinafter, ``System'') by utilizing 
either the Financial Information Exchange (``FIX'') protocol or the 
Binary Order Entry (``BOE'') protocol. The Exchange further offers a 
variety of logical ports,\5\ which provide users of these ports with 
the ability within the Exchange's System to accomplish a specific 
function through a connection, such as order entry, data receipt or 
access to information. For example, such ports include Logical 
Ports,\6\ Purge Ports,\7\ and Ports with Bulk Quoting Capabilities \8\ 
(``Bulk Ports''). By way of further background, each of these ports 
corresponds to a single running order handler. Each order handler 
processes the messages it receives from these ports from the connected 
Members. This processing includes determining whether the message 
contains the required information to enter the System, whether the 
message parameters satisfy port-level (i.e., pre-trade) risk controls, 
and where to send that message within the System (i.e., to which 
matching engine.\9\) Once an order handler completes the processing of 
a message, it sends that message to the appropriate matching engine.
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    \4\ The terms ``Trading System'' and ``System'' mean the 
automated trading system used by BZX Options for the trading of 
options contracts. See Chapter XVI. General Provisions--BZX Options, 
Rule 16.1 Definitions.
    \5\ See Exchange Rule 21.1 (l)(2), definition of ``logical 
port.'' Logical ports include FIX and BOE ports (used for order 
entry), drop logical port (which grants users the ability to receive 
and/or send drop copies) and ports that are used for receipt of 
certain market data feeds.
    \6\ The term ``Logical Ports'' used herein shall refer to FIX 
and BOE ports (used for order entry). See Cboe BZX Options Fee 
Schedule, Options Logical Port Fees, ``Logical Ports'' (which 
exclude Purge Port, Multicast PITCH Spin Server Port or GRP Port).
    \7\ Purge Ports provide users the ability to cancel a subset (or 
all) of open orders across Executing Firm ID(s) (``EFID(s)''), 
Underlying symbol(s), or CustomGroupID(s), across multiple logical 
ports/sessions. See Securities Exchange Act Release 79956 (February 
3, 2017), 82 FR 10102 (February 9, 2017) (SR-BatsBZX-2017-05). See 
also https://cdn.cboe.com/resources/membership/US_Options_BOE_Specification.pdf and https://cdn.cboe.com/resources/membership/__FIX_Specification.pdf.
    \8\ See Exchange Rule 21.1 (l)(3), definition of ``bulk port.'' 
Bulk Ports provide users with the ability to submit and update 
multiple quote bids and offers in one message through logical ports 
enabled for bulk-quoting.
    \9\ A matching engine is a part of the Exchange's System that 
processes options quotes and trades on a symbol-by-symbol basis. 
Some matching engines will process option classes with multiple root 
symbols, and other matching engines will be dedicated to one single 
option root symbol (for example, options on SPY will be processed by 
one single matching engine that is dedicated only to SPY). A 
particular root symbol may only be assigned to a single designated 
matching engine. A particular root symbol may not be assigned to 
multiple matching engines.
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    Historically, all order handlers connect to all matching engines. 
That is, under the BOEv2 and FIX protocols,\10\ Members were able to 
access all symbols from a single logical port since each port 
corresponds to a single order handler that conveniently connects to all 
matching engines (``convenience layer''). Although the Exchange 
configures the software and hardware for its order handlers in the same 
manner, there can be a natural variance in the amount of time it takes 
individual order handlers to process messages of the same type under 
this architecture. Factors that contribute to this differentiation in 
processing times include the availability of shared resources (such as 
memory), which is impacted by (among other things) then-current message 
rates, the number of active symbols (i.e., classes), and recent 
messages for a symbol. This natural differentiation in processing times 
inherently may cause some messages to be sent from an order handler to 
a matching engine ahead of other messages that the Exchange's System 
may have received earlier on a different order handler.
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    \10\ The Exchange notes for clarity that while BOEv2 has been 
decommissioned, Members can still access the convenience layer 
through BOEv3 protocol.
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    The Exchange recently implemented a new architecture and protocol 
which includes, among other things, a single gateway per matching 
engine (``unitized layer''), which renders the above-described natural 
variance of order handler processing irrelevant for Members that 
connect to the unitized order handler.\11\ More specifically, effective 
August 19, 2024, the Exchange implemented this new unitized access 
architecture and a new version of its Binary Order Entry (BOE) protocol 
\12\ (``BOEv3''), which also resulted in the adoption of new logical 
port types (``Unitized Logical Ports''), for which the Exchange is now 
seeking to establish fees.\13\ Under the new unitized BOEv3 
architecture, a single BOEv3 order handler corresponds to a single 
matching engine and all message traffic (including FIX and BOEv3 
convenience layer port traffic) \14\ passes through this unitized BOEv3 
order handler before reaching that order handler's corresponding 
matching engine.\15\ If a Member desires to access this unitized layer 
of the BOEv3 architecture, the Member would need to obtain a Unitized 
Logical Port for each corresponding matching engine(s) that process the 
symbol(s) that Member desires to trade.\16\
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    \11\ See Securities Exchange Act Release 100582 (July 23, 2024), 
89 FR 60958 (July 29, 2024) (SR-CboeBZX-2024-071).
    \12\ The BOE protocol is a proprietary order entry protocol used 
by Members to connect to the Exchange. The current version is BOEv3.
    \13\ See Securities Exchange Act Release No. 100582 (July 23, 
2024) 89 FR 60958 (July 29, 2024) (SR-CboeBZX-2024-071).
    \14\ The Exchange decommissioned BOEv2 in March 2025.
    \15\ The Exchange notes that this improved infrastructure 
improves the prior noted natural variance in the amount of time it 
takes individual order handlers to process messages of the same type 
for all Members due to the improved infrastructure, even if a 
participant chooses to not utilize Unitized Logical Ports.
    \16\ Members will be able to purchase Unitized Logical Ports 
individually or may purchase a ``set,'' which will provide the total 
number of ports needed to connect to each available matching engine.
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    BOEv3 Unitized Logical Ports provide an expedited processing path 
to a single matching engine over that of other inbound paths on a best-
efforts basis. Under routine circumstances, the System will process 
pending purge messages from BOEv3 Unitized Logical Ports before 
processing other inbound paths. Exceptions to this approach exist with 
regard to various message traffic and rate controls that are 
incorporated into the BOEv3 architecture. To illustrate how BOEv3 
processes inbound messages, consider the following simplified example: 
(1) process pending purge messages from BOEv3 Unitized Logical Ports; 
(2) process all other pending messages from BOEv3 Unitized Logical 
Ports; (3) process pending messages from convenience ports.
    As noted above, to access the BOEv3 architecture a Member must 
obtain a Unitized Logical Port for each corresponding matching 
engine(s) that processes the symbol(s) the Member desires to trade. The 
three new port types that have been adopted are: (1) BOE Unitized 
Logical Ports,\17\ (2) Bulk
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    \17\ Similar to the Exchange's preexisting Logical Ports, the 
new Unitized Logical Ports allow Members to submit orders and 
quotes.

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[[Page 59610]]

Unitized Logical Ports,\18\ and (3) Purge Unitized Logical Ports \19\ 
(collectively, ``Unitized Logical Port''). With the exception of 
Exchange Options Market Makers \20\ (hereinafter, ``Market Makers'') 
who may only quote via a BOE Bulk Unitized Logical Port,\21\ use of the 
unitized architecture and purchase of a Unitized Logical Port is 
completely voluntary, and Members (i.e., non-Market Makers) are not 
required, or under any regulatory obligation, to utilize them.
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    \18\ Similar to the Exchange's preexisting Bulk Ports, the new 
Bulk Unitized Logical Ports allow Members to submit and update 
multiple quote bids and offers in one message and are particularly 
useful for Members that provide quotations in many different 
options.
    \19\ Similar to the Exchange's preexisting Purge Ports, the new 
Purge Unitized Logical Ports are dedicated logical ports that 
provide the ability to cancel/purge all open orders, or a subset 
thereof, across multiple logical ports through a single cancel/purge 
message. They also solely process purge messages and are designed to 
assist Members, including Market Makers, in the management of, and 
risk control over, their orders and quotes, particularly if the 
Member is dealing with a large number of options.
    \20\ The terms ``Options Market-Maker'' and ``Market-Maker'' 
mean an Options Member registered with the Exchange for the purpose 
of making markets in options contracts traded on the Exchange and 
that is vested with the rights and responsibilities specified in 
Chapter XXII of these Rules. See Chapter XVI. General Provisions--
BZX Options, Rule 16.1 Definitions.
    \21\ Market Makers may provide liquidity using either FIX, BOE 
convenience ports, BOE Unitized Logical Ports, or BOE Bulk Unitized 
sessions using either order or quote messages. Only the BOE Bulk 
Unitized sessions support the quote messages. BOE Bulk convenience 
sessions were not created due to lack of demand from MMs.
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    The Exchange proposes to establish fees for the new Unitized 
Logical Ports, which can be purchased on an individual basis (i.e., 
capable of accessing a specified matching engine (``Matching Unit'')) 
\22\ and/or as a set (``Unitized Logical Port Set'') (i.e., will 
include the total number of ports needed to connect to each available 
Matching Unit). The proposed fees for Unitized Logical Ports purchased 
individually and as sets are as follows:
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    \22\ The Exchange notes that it operates 32 separate matching 
units.

------------------------------------------------------------------------
 
------------------------------------------------------------------------
BOE Unitized Logical Port.........  $350/port/month.
Bulk Unitized Logical Port........  $550/port/month.
Purge Unitized Logical Port.......  $400/port/month.
BOE Unitized Logical Port (Set)...  $2,500/month for 1st and 2nd port
                                     set, $3,000/month for 3rd-14th port
                                     set, $3,500/month for 15th-30th
                                     port set.
Bulk Unitized Logical Port (Set)..  $5,500/month for 1st and 2nd port
                                     set, $6,000/month for 3rd-14th port
                                     set, $6,500/month for 15th-30th
                                     port set.
Purge Unitized Logical Port (Set).  $2,500/month for 1st and 2nd port
                                     set, $3,000/month for 3rd-14th port
                                     set, $3,500/month for 15th-30th
                                     port set.
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    The proposed fees for Unitized Logical Port Sets are progressive. 
For example, if a User were to purchase 11 BOE Unitized Logical Port 
Sets, it will be charged a total of $32,000 per month ($2,500 * 2 + 
$3,000 * 9). As is the case today for existing logical ports, the 
monthly fees are assessed and applied in their entirety and are not 
prorated. The Exchange notes the current standard fees assessed for 
existing logical ports will remain applicable and unchanged,\23\ and 
Members are still able to purchase and utilize such ports if they 
choose to do so. The proposed fees for Unitized Logical Port Sets will 
be assessed per set, per Port Type. As an example, if a Member requests 
three BOE Unitized Logical Port Sets, one Bulk Unitized Logical Port 
Set, and one Purge Unitized Logical Port Set, the firm would be charged 
$8,000 ($2,500 + $2,500 + $3,000) for the three BOE Unitized Logical 
Port Sets, $5,500 for the one Bulk Unitized Logical Port Set, and 
$2,500 for the one Purge Unitized Logical Port Set.\24\
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    \23\ For example, the Exchange currently assesses a monthly per 
port fee of $750 for Logical Ports and Purge Ports. It also assesses 
$1,500 per port month for the 1st and 2nd Bulk Ports and $2,500 for 
the 3rd or more Bulk Ports. See Cboe BZX Options Fee Schedule, 
Options Logical Port Fees.
    \24\ The Exchange proposes to include this example in the Fee 
Schedule to provide further clarity as to the application of the 
proposed fees.
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    Since the Exchange has a finite amount of capacity, it also 
proposes to prescribe a maximum limit on the number of Unitized Logical 
Ports that may be purchased and used on a per Member, per Matching Unit 
basis. The purpose of establishing these limits is to manage the 
allotment of Unitized Logical Ports in a fair and reasonable manner 
while preventing the Exchange from being required to expend large 
amounts of resources in order to provide an unlimited capacity to its 
matching engines. The Exchange previously proposed to provide that the 
two structures (i.e., individual unitized ports or unitized port sets) 
can be combined for up to a maximum of 20 Unitized Logical Ports per 
Member, per Matching Unit, per type of Unitized Logical Port.\25\ The 
Exchange noted at the time it adopted this maximum that it would 
continue monitoring interest by all Members and system capacity 
availability with the goal of increasing these limits to meet Members' 
needs if and when the demand is there and/or the Exchange is able to 
accommodate such demand.\26\ Since then, the Exchange has determined 
that it is able to accommodate an increased cap relative to current 
demand and available to the Exchange's matching engine and order 
handler capacity. As such, the Exchange proposes to increase the 
maximum to 30 Unitized Logical Ports per Member, per Matching Unit, per 
port type. As an example, a Member may request 12 BOE Unitized Logical 
Port Sets and 18 individual BOE Unitized Logical Ports for Matching 
Unit 1, providing a total max of 30 BOE Unitized Logical Ports on 
Matching Unit 1 specifically. This would result in having 30 BOE 
Unitized Logical Ports on Matching Unit 1 and 12 BOE Unitized Ports on 
all additional Matching Units as part of the 12 BOE Unitized Logical 
Port Sets requested. Additionally, a firm may request 30 Bulk Unitized 
Logical Port Sets and 30 Purge Unitized Logical Port Sets as those 
would constitute different port types.\27\ The Exchange believes the 
proposed cap will be sufficient for the vast majority of Members, as 
the Exchange understands that at this time, no Member desires more than 
the current cap. The Exchange notes that it will continue to monitor 
interest in Unitized Logical Ports and system capacity availability 
with the goal of further increasing these limits to meet Members needs 
if and when the demand is there, and the Exchange is able to 
accommodate it. Additionally, Members

[[Page 59611]]

will still be able to utilize the existing logical port connectivity 
offerings with no maximum limit in addition to their Unitized Logical 
Port allocation.\28\ As further discussed below, the Exchange's pricing 
for these new Unitized Logical Ports are less than or comparable to 
similar offerings from other exchanges.\29\
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    \25\ See Securities Exchange Act Release 101212 (September 27, 
2024), 89 FR 80614 (October 3, 2024) (SR-CboeBZX-2024-088).
    \26\ Id.
    \27\ The Exchange proposes to include this example in its Fee 
Schedule to provide clarity as to how Unitized Logical Port fees 
will be assessed. The Exchange further notes that in its prior 
filing (SR-CboeBZX-2025-016), it increased the cap to 30 and noted 
as such in its fee schedule; however, the Exchange will now include 
a clarifying update in its fee schedule to update the max tier 
amount from 20 to 30 for consistency and clarity.
    \28\ The Exchange notes that it does not support conversion of 
any one port type to another. Members and Market Makers would need 
to request new port and delete existing their port to transition 
from convenience ports to a Unitized Logical Port.
    \29\ See MIAX Express Interface for Quoting and Trading Options, 
MEI Interface Specification, Section 1.2 (MEI Architecture) 
available at: MIAX_Express_Interface_MEI_v2.10a.pdf (miaxglobal.com) 
which indicates firms can connect directly to one or more matching 
engines depending on which symbols they wish to trade and states 
``MIAX trading architecture is highly scalable and consists of 
multiple trade matching environments (clouds). Each cloud handles 
trading for all options for a set of underlying instruments'' and 
provides that ``Market Maker firms can connect to one or more pre-
assigned servers on each cloud. This will require the firm to 
connect to more than one cloud in order to quote in all underlying 
instruments they are approved to make markets in'' See also MIAX 
Emerald Options Order Management Using FIX Protocol, FIX Interface 
Specification, available at https://www.miaxglobal.com/sites/default/files/page-files/FIX_Order_Interface_FOI_v2.6c.pdf. MIAX 
describes its FIX Order Interface Gateway as ``a high-speed FIX 
Order Interface gateway [that] conveniently routes orders to our 
trading engines through a common entry point to our trading 
platform.'' See https://www.miaxglobal.com/markets/us-options/miax-options/interface-specifications.
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Average Daily Quotes and Average Daily Order Fees
    The Exchange also proposes to adopt Average Daily Order (``ADO'') 
and Average Daily Quote (``ADQ'') fees. ``ADO'' represents the total 
number of orders for the month, divided by the number of trading days. 
``ADQ'' represents the total number of quotes for the month, divided by 
the number of trading days. When measuring a Member's ADO and ADQ, 
orders, quotes, cancel/replace modify orders, and quote updates which 
submit a bid or offer and do not include cancels, are included. 
Further, ADO and ADQ will include orders and quotes submitted by a 
Member from all logical port types (i.e., non-unitized logical ports 
and Unitized Logical Ports). Each Member may submit up to 2,000,000 
average daily orders or up to 250,000,000 average daily quotes per 
calendar month without incurring any ADO or ADQ fees. In the event that 
the average number of quotes per trading day during a calendar month 
submitted exceeds 250,000,000, each incremental usage of up to 20,000 
average daily quotes will incur an additional fee as set forth in the 
table below. Similarly, in the event that the average number of orders 
per trading day during a calendar month submitted exceeds 2,000,000, 
each incremental usage of up to 1,000 average daily orders will incur 
an additional ADO fee as set forth in the table below.\30\ A Member's 
ADO and ADQ will be aggregated together with any affiliated Member 
sharing at least 75% common ownership.
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    \30\ The term ``quote'' refers to bids and offers submitted in 
bulk messages. A bulk message means a single electronic message a 
user submits with an M (Market-Maker) capacity to the Exchange in 
which the User may enter, modify, or cancel up to an Exchange-
specified number of bids and offers. A User may submit a bulk 
message through a bulk port as set forth in Exchange Rule 
21.1(j)(3). See Rule 16.1 (definition of bulk message).

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                                                                                                          Fee
                                                             -------------------------------------------------------------------------------------------
                                                                   Tier 1            Tier 2            Tier 3             Tier 4             Tier 5
                                                                <=250,000,000     >250,000,000      >500,000,000      >1,000,000,000     >3,500,000,000
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ADQ Fee Rate per 20,000 ADQ.................................            $0.00             $0.05            $0.075              $0.10              $0.20
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                                                                       Tier 1            Tier 2            Tier 3             Tier 4             Tier 5
                                                                  <=2,000,000        >2,000,000        >2,500,000         >3,000,000         >3,500,000
--------------------------------------------------------------------------------------------------------------------------------------------------------
ADO Fee Rate per 1,000 ADO..................................            $0.00             $1.00             $1.50              $2.00              $2.50
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    As an example, a Member that has 510,000,000 ADQ would subsequently 
have 25,500 ``ADQ increments'' (510,000,000 ADQ/20,000 ADQ increments). 
While 12,500 of the 25,500 ADQ increments are free within Tier 1, 
12,500 of the ADQ increments would be fee liable at $0.050 within Tier 
2, while the remaining 500 ADQ increments would be fee liable at $.075 
within Tier 3, resulting in a total ADQ fee of $662.50 for that 
month.\31\
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    \31\ The Exchange proposes to include this example in the Fees 
Schedule to provide further clarity as to the application of the 
proposed fees.
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    The Exchange notes that market participants with incrementally 
higher ADO or ADQ are likely to require more of the Exchange's Trading 
System resources, bandwidth, and capacity. In this regard, higher ADO 
or ADQ may, in turn, create System latency and potentially impact other 
Members' ability to receive timelier executions. The proposed fee 
structure has multiple thresholds, and the proposed fees are 
incrementally greater at higher ADO and ADQ rates because the potential 
impact on Exchange Systems, bandwidth, and capacity becomes greater 
with increased ADO and ADQ rates. As noted above, the proposal 
contemplates that a Member would have to exceed the high ADO rate of 
2,000,000 and a Member would have to exceed the high ADQ rate of 
250,000,000 before that market participant would be charged a fee under 
the proposed respective tiers. The Exchange believes that it is in the 
interests of all Members and market participants who access the 
Exchange to not allow other market participants to strain System 
resources, but rather encourage efficient usage of network capacity. 
The Exchange also believes this proposal (and in particular the 
proposed incrementally higher fee amounts associated with higher ADO 
and ADQ) will help to moderate excessive order/quote and trade activity 
from Members that may require the Exchange to otherwise increase its 
storage capacity and will encourage such activity to be submitted in 
good faith for legitimate purposes.
    The Exchange also represents that the proposed fees are not 
intended to raise profits; rather, as noted above, it is intended to 
encourage efficient behavior so that market participants do not exhaust 
System resources. Moreover, the Exchange provides Members with daily 
reports, free of charge, which details their order and trade activity 
in order for those firms to be fully aware of all order and trade 
activity they (and their affiliates) are sending to the Exchange. This 
will allow Members to monitor their behavior and determine whether it 
is approaching any of the ADO or ADQ thresholds that trigger the 
proposed fees.
    Lastly, the Exchange notes that other exchanges have adopted 
various fee programs that assess incrementally higher fees to Members 
that have incrementally higher order and/or

[[Page 59612]]

quoting trading activity for similar reasons.\32\
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    \32\ See, e.g., Securities Exchange Act Release No. 60102 (June 
11, 2009), 74 FR 29251 (June 19, 2009) (SR-NYSEArca-2009-50) 
(adopting fees applicable to Members based on the number of orders 
entered compared to the number of executions received in a calendar 
month). It appears that Nasdaq similarly assesses a penalty charge 
to its members that exceed certain ``weighted order-to-trade 
ratios''. See Price List--Trading Connectivity, NASDAQ, available at 
https://www.nasdaqtrader.com/trader.aspx?id=pricelisttrading2. See 
also Securities Exchange Act Release No. 91406 (March 25, 2021), 86 
FR 16795 (March 31, 2023) (SR-EMERALD-2021-10) (adopting an 
``Excessive Quoting Fee'' to ensure that Market Makers do not over 
utilize the exchange's System by sending messages to the MIAX 
Emerald, to the detriment of all other Members of the exchange).
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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.\33\ Specifically, the 
Exchange believes the proposed rule change is consistent with the 
Section 6(b)(5) \34\ 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) \35\ requirement that the rules of an exchange not be 
designed to permit unfair discrimination between customers, issuers, 
brokers, or dealers. The Exchange also believes the proposed rule 
change is consistent with Section 6(b)(4) \36\ of the Act, which 
requires that Exchange rules provide for the equitable allocation of 
reasonable dues, fees, and other charges among its Members and other 
persons using its facilities.
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    \33\ 15 U.S.C. 78f(b).
    \34\ 15 U.S.C. 78f(b)(5).
    \35\ Id.
    \36\ 15 U.S.C. 78f(b)(4).
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    The Exchange believes the proposed fees are reasonable because 
Unitized Logical Ports provide a valuable service in that Unitized 
Logical Ports are intended to create a more consistent, and more 
deterministic experience for messages once received within the 
Exchange's System under the recently adopted unitized BOEv3 
architecture. As discussed above, the new architecture (and thereby the 
new Unitized Logical Ports) was designed to create a more consistent 
and more deterministic experience for messages once received within the 
System, which the Exchange believes improves the overall access 
experience on the Exchange and will enable future system enhancements. 
As noted, the BOEv3 protocol and architecture, along with the three new 
corresponding Unitized Logical Ports, are intended to reduce the 
natural variance of order handler processing times for messages, and as 
a result reduce the potential resulting ``reordering'' of messages when 
they are sent from order handlers to matching engines. The adoption of 
the unitized BOEv3 structure (including the corresponding new Unitized 
Ports) was a technical solution that is intended to reduce the 
potential of this reordering and increase determinism.\37\ The Exchange 
believes the proposed fees are also reasonable to offset costs incurred 
in order to build out an entirely new unitized architecture.
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    \37\ See Securities Exchange Act Release 100582 (July 23, 2024), 
89 FR 60958 (July 29, 2024) (SR-CboeBZX-2024-071).
---------------------------------------------------------------------------

    Furthermore, the Exchange also notes that it believes the proposed 
fees are similar to or less than fees assessed by other exchanges, for 
analogous connections as explained in further detail below.\38\ The 
Exchange notes that other exchanges that offer similar pricing for 
similar connections have a comparable, or even lower, market share as 
the Exchange, as also detailed further below. Indeed, the Exchange has 
reviewed the U.S. options market share for each of the eighteen options 
markets utilizing total options contracts traded year-to-date as of the 
end of June 2025, as set forth in the following graph: \39\
---------------------------------------------------------------------------

    \38\ See e.g. MIAX Pearl Options Fee Schedule.
    \39\ Market share is the percentage of volume on a particular 
exchange relative to the total volume across all exchanges, and 
indicates the amount of order flow directed to that exchange. High 
levels of market share enhance the value of trading and ports. Total 
contracts include both multi-list options and proprietary options 
products. Proprietary options products are products with 
intellectual property rights that are not multi-listed. The Exchange 
does not currently list proprietary products.
[GRAPHIC] [TIFF OMITTED] TN19DE25.000


[[Page 59613]]


    The Exchange (market share of 4.30%) notes that the proposed Purge 
Unitized Logical Port fee of $400 to connect to a matching engine is 
lower than fees charged by at least two other exchanges with comparable 
(indeed, even lower) market share, particularly by MIAX Emerald (3.90% 
market share) and MIAX Pearl (2.7% market share). The Exchange does 
note that both MIAX Emerald and MIAX Pearl offer two purge ports for a 
matching engine connection at a cost of $600,\40\ while the Exchange 
offers the primary Purge Unitized Logical Port as well as a secondary 
Purge Unitized Logical Port for its redundant secondary data center 
ports for $400. The Exchange believes that the bulk of the value 
customers derive is not within the quantity of Purge Unitized Logical 
Ports a Member purchases, but the ability to connect to the specific 
matching engine.\41\ For instance, a Member may need to purchase 
several convenience ports to minimize the natural variance of order 
handler processing times for messages, but by comparison the same 
Member may only need to purchase a single Unitized Logical Port to 
achieve the same results. For this reason, the Exchange still believes 
it is better priced than MIAX Emerald's and MIAX Pearl's comparable 
offerings.
---------------------------------------------------------------------------

    \40\ See e.g., MIAX Emerald Options Fee Schedule.
    \41\ Due to the higher performance that offers higher throughput 
with more deterministic outcomes for participants, the revised 
architecture leads to a decreased demand in ports generally.
---------------------------------------------------------------------------

    Furthermore, even when comparing the costs of purchasing Purge 
Unitized Logical Ports to connect to all matching engines, the Exchange 
still assesses a lower fee than MIAX Pearl or MIAX Emerald. Connecting 
to all matching engines on MIAX Emerald or MIAX Pearl would cost 
$7,200, while connecting to all matching engines on BZX Options costs 
$2,500.\42\ As noted above, while the Exchange believes the bulk of the 
value customers derive is the ability to connect to specific matching 
engines, and in this case, all matching engines, if a customer did want 
to have two Purge Unitized Logical Ports for all matching engines (in 
addition to the included secondary purge ports provided), it would cost 
the participant $5,000 ($2,500/set x 2)--still lower than the cost of 
$7,200 for two purge ports for all matching engines that MIAX Emerald 
and MIAX Pearl offer.
---------------------------------------------------------------------------

    \42\ The pricing amounts for MIAX Pearl and MIAX Emerald are 
based off of $600 per Purge Port fee per matching engine with a 
total of 12 matching engines (see MIAX Pearl Options--Reminder of 
rebalancing of the symbol distribution across Trade Matching 
Environments (Clouds) effective for Trading on May 12, 2025 [verbar] 
MIAX and MIAX Emerald Options Rebalancing of the symbol distribution 
across Trade Matching Environments (Clouds) effective for Trading on 
April 14, 2025 [verbar] MIAX). While the pricing for BZX Options is 
based on connecting to all Matching Engines by purchasing a set.
---------------------------------------------------------------------------

    While not as closely comparable, MIAX Emerald and MIAX Pearl both 
offer Full Service MEI Ports (analogous to the Exchange's Bulk Port 
offering) and Limited Service MEI Ports (analogous to the Exchange's 
BOE Port offering) that are based on the lesser of a participant's per 
class basis or percentage of total national average daily volume 
measurement. For each matching engine a participant connects to (based 
on their activity), they receive two Full Service MEI Ports and four 
Limited Service MEI Ports.\43\ Based on publicly available information, 
MEI ports provide market makers direct connections to each matching 
engine for high-speed mass quoting.\44\ A Full Service MEI Ports 
support all input message types, and Limited Service MEI Ports support 
all message types except bulk quotes.
---------------------------------------------------------------------------

    \43\ See e.g., MIAX Pearl Options Fee Schedule.
    \44\ See MIAX Emerald Options Exchange, Market Access--MIAX 
Express Interface, at 2, available at: https://www.miaxglobal.com/sites/default/files/website_file-files/MIAX_Emerald_Fact_Sheet_03272019.pdf.
---------------------------------------------------------------------------

    Notably, MIAX Emerald and MIAX Pearl offer their Full Service MEI 
Ports and Limited Service MEI Ports only to market makers on those 
respective exchanges, and non-market maker members are not permitted to 
purchase MEI connections. As such, when comparing the Unitized Logical 
Port fees assessed to Market Makers by the Exchange to the Full Service 
MEI and Limited Service MEI Ports assessed to market makers by MIAX 
Emerald and MIAX Pearl, the Exchange believes that its proposed fee for 
Unitized Logical Ports is reasonable and justified by the value derived 
by Options Market Makers purchasing these connections in being able to 
connect directly to a certain matching engine.
    Specifically, presuming a participant is quoting up to 10 classes 
for MIAX Pearl or 5 classes for MIAX Emerald (the lowest available tier 
for each exchange), they are connecting to fewer matching engines than 
another participant who may be quoting over 100 classes (the highest 
tier available for both MIAX Pearl and MIAX Emerald). In comparing the 
monthly cost using the pricing of the lowest tiers for MIAX Pearl and 
MIAX Emerald, the Exchange presumes an estimated comparable connection 
of connecting to 3 different matching engines at a cost of $550 per 
Bulk Port per matching engine and $350 per BOE Port per matching 
engine.\45\ This equates to $7,500 (($350 * 4 Ports * 3 matching 
engines) + ($550 * 2 Ports * 3 matching engines) per month for BZX 
Options, and $5,000 per month for both MIAX Pearl and Emerald. For the 
highest tier, the Exchange presumes that if a participant was quoting 
over 100 classes, they are likely connecting to all matching engines. 
In this case, it costs a participant $12,000 per month for MIAX Pearl, 
$20,500 per month for MIAX Emerald, and $22,000 ($5,500 * 2 Bulk Sets) 
+ ($2,500 * 2 BOE Sets (Tier 1)) + ($3,000 * 2 BOE Sets (Tier 2)) per 
month for BZX Options to connect to all matching engines.
---------------------------------------------------------------------------

    \45\ The Exchange notes that, based on publicly available 
information from MIAX Emerald and MIAX Pearl, a definitive 
comparison is not feasible. Rather, the Exchange could only 
reasonably infer that using the lowest tier for each of MIAX Emerald 
and MIAX Pearl may reasonably equate to connecting to 3 Exchange 
matching engines. The Exchange deduced that 3 Exchange matching 
engines may be a relevant comparison given the number of quoting 
symbols quoted per Exchange matching engine.
---------------------------------------------------------------------------

    While the Exchange is priced higher in these specific examples, it 
again believes the value comes from the ability to connect to 
additional matching engines as opposed to the quantity of ports itself 
and participants of the Exchange are able to determine their number of 
desired ports as opposed to having a set package based on their 
Exchange activity. For example, a participant of BZX Options can have 
similar matching engine connectivity to the lowest tier of MIAX Emerald 
or MIAX Pearl by connecting to three matching engines (using the same 
presumed number as above) by purchasing three Bulk Ports for a cost of 
$1,650 per month, substantially less than the fixed costs of $5,000 per 
month of MIAX Emerald and MIAX Pearl. Additionally, a participant on 
BZX Options is able to connect to all matching engines for a price of 
$5,500 per month by purchasing a Bulk Set as opposed to the fixed cost 
of MIAX Emerald and MIAX Pearl at $20,000 per month and $12,000 per 
month, respectively. Furthermore, MIAX Emerald does allow participants 
to purchase additional Limited Service ports at a price of $420 per 
month, higher than the Exchange's comparable offering of $350 per month 
for a BOE port. While it is challenging to compare the exact pricing on 
these products, the Exchange believes that it is priced comparably, if 
not lower than MIAX Pearl and MIAX Emerald.
    The Exchange acknowledges that the above comparability analysis 
does not consider the fees assessed to non-Options Market Makers on the 
Exchange relative to non-market makers on MIAX Emerald or MIAX Pearl. 
This is due,

[[Page 59614]]

however, to the fact that MIAX Emerald and MIAX Pearl do not permit 
non-market makers to purchase MEI ports (the closest comparable product 
to BZX's Unitized Logical Ports). Presumably, MIAX Emerald and MIAX 
Pearl limit such participants to use of only MIAX's FIX ports. 
Importantly, unlike MIAX Emerald and MIAX Pearl, the Exchange permits 
its Members (i.e., non-Market Makers) to purchase a Unitized Logical 
Port, should such Member deem the use of such connection to be 
beneficial to their trading strategy. Additionally, Members (i.e., non-
Market Makers) may instead elect to purchase Exchange BOE convenience 
or FIX Ports, or a combination of Unitized Logical Ports, BOE 
convenience and FIX ports. Furthermore, Members and Market Makers are 
free to choose to purchase Unitized Logical Ports in sets or by 
individual ports (dependent on the firm's matching engine needs, which 
may be based on products it trades, strategies, or other business 
needs). As such, the Exchange's offering is both more widely available 
and provides Members and Market Makers with more flexibility and 
customization in contrast to MIAX's strict matching engine connectivity 
based on the classes a Market Maker is quoting in and its rigid fee 
structure.
    As an additional point of comparison for non-market makers, the 
Exchange notes the FIX port fees it charges it Members, relative to 
those charged by MIAX Emerald and MIAX Pearl for their non-market maker 
members.\46\ Specifically, the Exchange charges its Members $750 per 
month, per convenience port (which may be FIX or BOE). MIAX Emerald 
\47\ utilizes a progressive fee schedule for its FIX ports and charges 
its members a fee of $550 per month, per port, for the first FIX port; 
$350 per month, per port, for ports two through five; and $150 per 
month, per port, for each FIX port above five. MIAX Pearl \48\ also 
utilizes a progressive fee schedule for its FIX ports, and charges its 
members $275 per month, per port, for the first FIX port; $175 per 
month, per port, for FIX ports two through five; and $75 per month, per 
port, for each sixth or more FIX port. While purchasing six FIX ports 
on the Exchange ($4,500) \49\ would cost more than purchasing six FIX 
ports on MIAX Emerald ($3,100) \50\ or MIAX Pearl ($1,225),\51\ the 
Exchange again notes that its Members are, unlike MIAX Emerald and MIAX 
Pearl members, permitted to purchase BOE ports, FIX ports, or Unitized 
Logical Ports, or a combination of the three, depending on their needs 
and strategy. In this regard, unlike MIAX Emerald and MIAX Pearl the 
Exchange's Unitized Logical Port solution and its related benefits are 
available to all Members, and at a lower cost than that assessed to 
Members for a single FIX port ($750 for one FIX port, per month vs. 
$350 for one BOE Unitized Logical Port). Therefore, while FIX ports on 
the Exchange are more expensive than those on MIAX Emerald and MIAX 
Pearl, the Exchange's port offerings as a whole provide Members and 
Market Makers with more flexibility in how to manage their Exchange 
access and better configure their connectivity costs based on their 
needs The Exchange also emphasizes that the use of the Unitized Logical 
Ports is not necessary for trading on the Exchange and, as noted above, 
is entirely optional (other than Market Makers which must utilize a 
Unitized Logical Port for quoting). The Exchange notes the following 
usage stats, current as of September 25, 2025:
---------------------------------------------------------------------------

    \46\ For the sake of clarity, the Exchange notes that Options 
Market Makers are also permitted to purchase convenience ports 
(which may be FIX or BOE).
    \47\ Supra note 40.
    \48\ Supra note 38.
    \49\ $750 * 6 = $4,500.
    \50\ $750 + $550 + $550 + $550 + $550 + $550 + $150 = $3,100.
    \51\ $275 + $175 + $175 + $715 + $175 + $715 + $75 = $1,225.
---------------------------------------------------------------------------

     Convenience Ports (FIX or BOEv3):
    [cir] 57% of Members still utilize a convenience layer port (FIX or 
BOEv3), in addition to or in lieu of Unitized Ports. On average, Market 
Makers utilize 44 convenience ports.
     BOEv3 Unitized Logical Port:
    [cir] Market Makers constitute 71% of all BOEv3 Unitized Logical 
Port usage, compared to 29% of Members (i.e., non-Market Makers).
    [cir] Market Makers constitute 70% of all BOEv3 Unitized Logical 
Port sets usage, while Members (i.e., non-Market Makers) constitute 30% 
of BOEv3 Unitized Logical Port sets usage.
     BOEv3 Unitized Logical Purge Port:
    [cir] Market Makers constitute 100% of all BOEv3 Unitized Logical 
Purge Port usage, and 100% of BOEv3 Unitized Logical Purge Port set 
usage.
     BOEv3 Unitized Logical Bulk Port:
    [cir] Market Makers constitute 99% of all BOEv3 Unitized Logical 
Bulk Port Usage, while Members (i.e., non-Market Makers) constitute 1%.
    [cir] Market Makers constitute 99% of all BOEv3 Unitized Logical 
Bulk Port set usage, while Members (i.e., non-Market Makers) constitute 
1% of BOEv3 Unitized Logical Bulk Port set usage.
    The Exchange believes that the above statistics demonstrate that 
the use of Unitized Logical Ports and their associated fees are not 
mandatory per se. Indeed, Market Makers and Members alike are free to 
continue to utilize convenience ports for their message traffic as they 
best see fit, and may continue to access the Exchange through existing 
logical port offerings at existing rates. The Exchange believes that it 
is a Member's specific business needs that will drive its decision 
whether to use Unitized Logical Ports in lieu of, or in addition to, 
existing logical ports (or, as emphasized, not use them at all). If a 
Member finds little benefit in having these ports based on its business 
model and trading strategies, or determines the Unitized Logical ports 
are not cost-efficient for its needs, or does not provide sufficient 
value to the firm, such Member may continue connecting to the Exchange 
in the manner it does today, unchanged. Moreover, the Exchange believes 
that providing Members the option of purchasing Unitized Logical Ports 
individually or in sets provides Members further flexibility and an 
opportunity for cost savings for those Members that wish to only trade 
a subset of classes. The Exchange has seen firms take advantage of 
individually priced Unitized Logical Ports when their needs do not 
require connectivity to all matching engines--further allowing its 
Members to pay reduced fees relative to a Unitized Logical Port set.
    Furthermore, the Exchange notes that undertaking a technological 
innovation, such as offering a new connectivity option for Members (of 
which, 57% still utilize at least one FIX or BOEv3 Port through the 
convenience layer), requires costs and resource allocation. In fact, as 
the Exchange previously noted, such innovation has improved the 
infrastructure for all Members of the Exchange. Such innovation is a 
part of what allows the Exchange to continue to provide access to 
markets in times of heightened volatility with zero downtime. The new 
Chairman of the Securities Exchange Commission, Paul Atkins, even 
recently heighted the importance of innovation by stating ``. . . we 
are getting back to our roots of promoting, rather than stifling, 
innovation. The markets innovate, and the SEC should not be in the 
business of telling them to stand still.'' \52\ In order for exchanges 
to continue to provide greater options through technological

[[Page 59615]]

innovation and, in turn, work to improve the resiliency of markets, 
exchanges must have reasonable certainty around their ability to set 
fees.
---------------------------------------------------------------------------

    \52\ See Chairman Atkins ``Prepared remarks before SEC Speaks,'' 
May 19, 2025, available at: https://www.sec.gov/newsroom/speeches-statements/atkins-prepared-remarks-sec-speaks-051925.
---------------------------------------------------------------------------

    The Exchange also believes that the proposed Unitized Logical Port 
fees are equitable and not unfairly discriminatory because they 
continue to be assessed uniformly to similarly situated users in that 
all Members who choose to purchase Unitized Logical Ports will be 
subject to the same proposed tiered fee schedule. Moreover, Members 
purchasing Unitized Logical Ports will only do so if they find a 
benefit and sufficient value in such ports as all Members can otherwise 
continue to use the preexisting logical connectivity options.\53\ As 
such, Members can choose whether to purchase Unitized Logical Ports 
based on their respective business needs.
---------------------------------------------------------------------------

    \53\ The Exchange notes that Market Makers are required to 
purchase and utilize a Unitized Logical Port for their quoting 
activity.
---------------------------------------------------------------------------

    The proposed ascending tier structure for Unitized Logical Port 
Sets is reasonable, equitable and not unfairly discriminatory as it is 
designed to encourage market participants to be efficient with their 
respective Unitized Logical Port usage. It also is designed so that 
Members that use a higher allotment of the Exchange's system resources 
pay higher rates, rather than placing that burden on market 
participants that have more modest needs. The Exchange believes the 
proposed ascending fee structure is therefore another appropriate 
means, in conjunction with an established Unitized Logical Port limit, 
to manage this finite resource (system capacity) and ensure it is 
apportioned fairly.
    In contrast, MIAX's structure limits its offering to a specific 
subset of participants, Market Makers, and allocates its ports based on 
quoting. In contrast, the Exchange and its participants are free to 
utilize this product at their required level of consumption. 
Furthermore, the Exchange already assesses higher fees to those that 
consume more Exchange resources for the existing non-Unitized Bulk 
Ports.\54\ The proposed limit on Unitized Logical Ports is also 
reasonable, equitable and not unfairly discriminatory as the Exchange 
believes that it is in the interests of all Members and market 
participants who access the Exchange to not allow Members to exhaust 
System resources, but to encourage efficient usage of network capacity. 
The Exchange also notes that the new BOEv3 unitized architecture is 
subject to software limitations on the number of sessions that can be 
created on any one unitized process. Consideration was given to this 
limitation as well as to the amount of ports firms had indicated they 
would need prior to the implementation of Unitized Logical Ports.
---------------------------------------------------------------------------

    \54\ See Cboe U.S. Options Fees Schedule, BZX Options, Options 
Logical Port Fees, Ports with Bulk Quoting Capabilities.
---------------------------------------------------------------------------

    The Exchange believes the proposed ADO and ADQ fees are reasonable 
as Members that do not exceed the high thresholds of 2,000,000 ADO and 
250,000,000 ADQ will not be charged any fee under the proposed tiers. 
The Exchange notes that in establishing the proposed thresholds, it 
evaluated average ADO and ADQ rates over several months and the 
thresholds were designed to protect the Exchange's Matching Engines 
from being adversely impacted from sustained and excessive orders/
quotes throughout the course of a given month. Further, the Exchange 
considered the highest levels of ADO and ADQ rates amongst firms and 
from there, reviewed what would be considered an unreasonable threshold 
even at the highest levels. The ADQ thresholds are also designed to 
ensure Market Makers quoting activity, which acts as an important 
source of liquidity, is not impeded by the proposal.\55\ In fact, when 
setting these thresholds, the Exchange reviewed to ensure that these 
levels would not prohibit Market Makers from meetings quoting 
obligations.
---------------------------------------------------------------------------

    \55\ Since the implementation of the proposal on September 3, 
2024, the Exchange notes that it has not received any feedback from 
Market Maker participants that the proposal has impeded their 
ability to meet their quoting obligations.
---------------------------------------------------------------------------

    The Exchange also believes it is reasonable, equitable and not 
unfairly discriminatory to assess higher fees when a Member has higher 
ADO and ADQ rates because the potential impact on exchange systems, 
bandwidth and capacity becomes greater with increased ADO and ADQ 
rates. In this regard, the fees are designed to apply only to those 
Members whose message traffic is noticeably beyond the proposed ADO and 
ADQ rates. In particular, the proposed fee amounts that correspond to 
higher ADO and ADQ rates are designed to incentivize Members to reduce 
excessive order and quoting trade activity that the Exchange believes 
can be detrimental to all market participants at those levels and 
encourage such activity to be made in good faith and for legitimate 
purposes. As of the end of August 2025, the Exchange notes that all but 
one Member fell within the proposed ADO Tier 1, resulting in that one 
single Member being assessed additional ADO fees. With regards to ADQ, 
9 Members fell into Tier 1 and were not assessed any additional ADQ 
fees. Additionally, 4 Members fell into Tier 2, 2 Members fell into 
Tier 3, 2 Members fell into Tier 4, and 1 Member fell into Tier 5, and 
were assessed related ADQ fees.\56\
---------------------------------------------------------------------------

    \56\ The Exchange notes that a Member's ADO and ADQ rates will 
naturally vary based on options trading volume on the Exchange. In 
its initial filing the Exchange noted that while it could not 
predict with certainty any Member's actual ADO and ADQ rates, that 
it believed approximately 74% of Members would fall into Tier 1, and 
the remaining 26% would fall outside of Tier 1. In this filing, the 
stated ADO and ADQ rates are from August 2025, and represent that 
approximately 50% of Members fell out of Tier 1. While this 
percentage is greater than the 26% of Members noted in the 
Exchange's initial filing, the Exchange notes that average daily 
volume (``ADV'') in August 2025 across Cboe's four U.S. options 
exchange was at an all-time high of 19.2 million contracts, 
comprised of: record multi-listed options ADV of 14.3 millions 
contracts, which surpassed the ADV record of 13.6 million contracts 
set in February 2025; and S&P 500 Index (SPX) options ADV of 3.8 
million contracts, the second-best month of all time, with zero-
days-to-expiry (0DTE) trading representing a record ADV of 2.4 
million contracts. See ``Cboe Global Markets Reports Trading Volume 
for August 2025,'' available at: https://ir.cboe.com/news/news-
details/2025/Cboe-Global-Markets-Reports-Trading-Volume-for-August-
2025/
default.aspx#:~:text=record%20multi%2Dlisted%20options%20ADV,ADV%20of
%202.4%20million%20contracts.
---------------------------------------------------------------------------

    Importantly, as noted above, the Exchange believes that it is in 
the interests of all Members and market participants who access the 
Exchange to not allow Members to exhaust System resources, but to 
encourage efficient usage of network capacity. The Exchange therefore 
also believes that the proposed fees are one method of facilitating the 
Commission's goal of ensuring that critical market infrastructure has 
``levels of capacity, integrity, resiliency, availability, and security 
adequate to maintain their operational capability and promote the 
maintenance of fair and orderly markets.'' \57\ Furthermore, the 
Exchange believes adopting the proposed ADO and ADQ fees are reasonable 
as unfettered usage of System capacity and network resource consumption 
can have a detrimental effect on all market participants who access and 
use the Exchange. As discussed above, high ADO and ADQ rates may 
adversely impact system resources, bandwidth, and capacity which may, 
in turn, create latency and impact other Members' ability to receive 
timely executions.
---------------------------------------------------------------------------

    \57\ See Securities Exchange Act Release No. 73639 (November 19, 
2014), 79 FR 72251 (December 5, 2014) (File No. S7-01-13) 
(Regulation SCI Adopting Release).
---------------------------------------------------------------------------

    Moreover, the Exchange believes that the proposed ADO and ADQ fees 
are equitable and not unfairly discriminatory because they will be 
assessed uniformly to similarly situated

[[Page 59616]]

users in that all Members that exceed the thresholds in connection with 
ADO and ADQ will be assessed the proposed ADO and ADQ rates. Regarding 
ADO and ADQ, no market participant is assessed any fees unless it 
exceeds the proposed thresholds. The Exchange also believes it is 
equitable and not unfairly discriminatory to assess incrementally 
higher fees to Members that have higher ADO and ADQ rates because the 
potential impact on exchange systems, bandwidth and capacity becomes 
greater with increased ADO and ADQ.
    Furthermore, the Exchange believes it is equitable and not unfairly 
discriminatory to aggregate Members trading activity with any 
affiliated Member sharing at least 75% common ownership \58\ in order 
to prevent members from shifting their order flow or quoting activity 
to other affiliates in order to circumvent the ADO and ADQ thresholds.
---------------------------------------------------------------------------

    \58\ The Exchange notes that its usage of 75% of common 
ownership is standard practice and utilized by the Exchange's 
affiliated exchanges. For instance, Cboe EDGX Exchange, Inc. options 
Market Maker Order-to-Trade Ratio fees provide that Order-to-Trade 
Ratio fees will apply only to participants registered as Market 
Makers on EDGX Options. The Order-to-Trade ratio will be calculated 
monthly based on the total number of orders (including messages to 
modify orders) submitted to EDGX Options, regardless of capacity, 
divided by the total number of trades occurring on orders. The 
calculation of the ration will not include quotes or trades 
resulting from such quotes. A Market Maker's order flow will be 
aggregated together with any affiliated Members sharing at least 75% 
common ownership.'' See Cboe U.S. Options Fee Schedule, EDGX 
Options, available at: https://www.cboe.com/us/options/membership/fee_schedule/edgx/; see also Nasdaq BX Options 7 Pricing Schedule, 
``The term ``Common Ownership'' shall mean participants under 75% 
common ownership or control. . .,'' available at: https://listingcenter.nasdaq.com/rulebook/bx/rules/bx-options-7.
---------------------------------------------------------------------------

    The Exchange lastly believes that its proposal is reasonable, 
equitably allocated and not unfairly discriminatory because it is not 
intended to raise revenue for the Exchange; rather, it is intended to 
encourage efficient behavior so that Members do not exhaust System 
resources. Moreover, as noted above, competing options exchanges 
similarly assess fees to deter Members from over utilizing their 
respective systems by having excessive order and/or quoting trading 
activity.\59\
---------------------------------------------------------------------------

    \59\ See supra note 32.
---------------------------------------------------------------------------

    Finally, the Exchange notes that it operates in a highly 
competitive market in which market participants can readily direct 
order flow to competing venues if they deem fee levels at a particular 
venue to be excessive or incentives to be insufficient. The Exchange is 
only one of 18 options exchanges which market participants may direct 
their order flow and/or participate on, and it represents a small 
percentage of the overall market.\60\ When determining reasonable 
prices, the Exchange must ensure these are competitive prices in order 
to maintain market share, as uncompetitive pricing, or prices that 
Members deem to be excessive, can lead Members to take their order flow 
to other exchanges.
---------------------------------------------------------------------------

    \60\ See Cboe Global Markets, U.S. Options Market Volume 
Summary, Month-to-Date (August 27, 2024), available at https://www.cboe.com/us/options/market_statistics/ which reflects the 
Exchange representing only 3.3% of total market share.
---------------------------------------------------------------------------

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

    The Exchange does not believe that the proposed rule change to 
adopt fees for Unitized Logical Ports will impose any burden on 
intramarket competition that is not necessary in furtherance of the 
purposes of the Act because the proposed fees for will apply equally to 
all similarly situated Members. As discussed above, Unitized Logical 
Ports are optional \61\ and Members may choose to utilize Unitized 
Logical Ports or not, based on their views of the additional benefits 
and added value provided by these ports. The Exchange believes the 
proposed fees will be assessed proportionately to the potential value 
or benefit received by Members with a greater number of Unitized 
Logical Ports and notes that Members may determine to cease using 
Unitized Logical Ports should they determine that they are no longer 
receiving value from these ports. As discussed, Members can also 
continue to access the Exchange through existing Logical Ports, which 
fees are not changing. Moreover, while the NYSE Arca Marketplace 
(``Arca'') and Nasdaq Stock Market, LLC (``Nasdaq'') do not have 
offerings directly comparable to Unitized Logical Ports, the Exchange 
notes that Arca's and Nasdaq's port fees are higher than those of the 
Exchange. Specifically, the Exchange notes that Arca charges a fee of 
$621 per quoting/order entry port,\62\ and Nasdaq assess its members a 
fee of $575 per FIX order entry port.\63\ In both cases, Arca and 
Nasdaq's port fees are more expensive than the proposed fees for a 
single BOE Unitized Logical Port ($350/port/month), a single Bulk 
Unitized Logical Port ($550/port/month), and a single Purge Unitized 
Logical Port ($400/port/month).
---------------------------------------------------------------------------

    \61\ The Exchange notes that while use of Unitized Logical Ports 
is optional, Market Makers are required to utilized a Unitized 
Logical Port of their quoting activity.
    \62\ See NYSE Arca Fees and Charges ``Connectivity Fees,'' 
available at: https://www.nyse.com/publicdocs/nyse/markets/nyse-arca/NYSE_Arca_Marketplace_Fees.pdf.
    \63\ See ``Price List--Trading Connectivity,'' available at: 
https://nasdaqtrader.com/Trader.aspx?id=PriceListTrading2.
---------------------------------------------------------------------------

    Similarly, the Exchange does not believe that the proposed rule 
change to adopt ADO and ADQ fees will impose any burden on intramarket 
competition that is not necessary in furtherance of the purposes of the 
Act because such fees will apply equally to all similarly situated 
Members. Particularly, the proposed fees apply uniformly to all 
Members, in that any Member who exceeds the ADO and/or ADQ Tier 1 
thresholds will be subject to a fee under the proposed corresponding 
tiers. The Exchange believes that the proposed change neither favors 
nor penalizes one or more categories of market participants in a manner 
that would impose an undue burden on competition. Rather, the proposal 
seeks to benefit all market participants by encouraging the efficient 
utilization of the Exchange's network while taking into account the 
important liquidity provided by its Members. As discussed above 
potential impact on exchange systems, bandwidth, and capacity becomes 
greater with increased ADO and ADQ rates. Accordingly, the Exchange 
believes that the proposed ADO and ADQ fees do not favor certain 
categories of market participants in a manner that would impose a 
burden on competition.
    Next, the Exchange believes the proposed rule change does not 
impose any burden on intermarket competition that is not necessary or 
appropriate in furtherance of the purposes of the Act. As previously 
discussed, the Exchange operates in a highly competitive market, 
including competition for order flow. Market Participants have numerous 
alternative venues that they may participate on, including 17 other 
options exchanges (including 3 other Cboe-affiliated options 
exchanges), as well as off-exchange venues, where competitive products 
are available for trading. Indeed, participants can readily choose to 
submit their order flow to other exchange and off-exchange venues if 
they deem fee levels at those other venues to be more favorable. 
Moreover, the Commission has repeatedly expressed its preference for 
competition over regulatory intervention in determining prices, 
products, and services in the securities markets. Specifically, in 
Regulation NMS, 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

[[Page 59617]]

investors and listed companies.'' \64\ The fact that this market is 
competitive has also long been recognized by the courts. In 
NetCoalition v. Securities and Exchange Commission, the D.C. Circuit 
stated as follows: ``[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'. . . .''.\65\ Accordingly, the Exchange 
does not believe its proposed change imposes any burden on competition 
that is not necessary or appropriate in furtherance of the purposes of 
the Act.
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    \64\ See Securities Exchange Act Release No. 51808 (June 9, 
2005), 70 FR 37496, 37499 (June 29, 2005).
    \65\ NetCoalition v. SEC, 615 F.3d 525, 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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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 foregoing rule change has become effective pursuant to Section 
19(b)(3)(A) of the Act \66\ and paragraph (f) of Rule 19b-4 \67\ 
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.
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    \66\ 15 U.S.C. 78s(b)(3)(A).
    \67\ 17 CFR 240.19b-4(f).
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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 (https://www.sec.gov/rules/sro.shtml); or
     Send an email to [email protected]. Please include 
file number SR-CboeBZX-2025-158 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-CboeBZX-2025-158. 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 (https://www.sec.gov/rules/sro.shtml). 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-2025-158 and should be submitted 
on or before January 9, 2026.

    For the Commission, by the Division of Trading and Markets, 
pursuant to delegated authority.\68\
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    \68\ 17 CFR 200.30-3(a)(12).
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Sherry R. Haywood,
Assistant Secretary.
[FR Doc. 2025-23331 Filed 12-18-25; 8:45 am]
BILLING CODE 8011-01-P