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 Securities and Exchange Commission [Release No. 34-101212; File No. SR-CboeBZX-2024-088]
 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 
                    ( print page 80615)
                    September 13, 2024, 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. 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 Exchange's website (
                    *http://markets.cboe.com/​us/​equities/​regulation/​rule_​filings/​BZX/​*), at the Exchange's Office of the Secretary, and at the Commission's Public Reference Room. II. Self-Regulatory Organization's Statement of the Purpose of, and Statutory Basis for, the Proposed Rule Change In its filing with the Commission, the Exchange included statements concerning the purpose of and basis for the proposed rule change and discussed any comments it received on the proposed rule change. The text of these statements may be examined at the places specified in Item IV below. The Exchange has prepared summaries, set forth in sections A, B, and C below, of the most significant aspects of such statements. A. Self-Regulatory Organization's Statement of the Purpose of, and Statutory Basis for, the Proposed Rule Change 1. Purpose The 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] Unitized Port Fees By way of background, Exchange Members may interface with the Exchange's Trading 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,[4]
                    
                     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,[5]
                    
                     Purge Ports,[6]
                    
                     and Ports with Bulk Quoting Capabilities [7]
                    
                     (“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 [8]
                    
                    ). Once an order handler completes the processing of a message, it sends that message to the appropriate matching engine. Historically, all order handlers connect to all matching engines. That is, under the BOEv2 and FIX protocols, 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. 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.[9]
                    
                     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 [10]
                    
                     (“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.[11]
                    
                     Under the new unitized BOEv3 architecture, a single BOEv3 order handler corresponds to a single matching engine and all message traffic (including FIX and current BOEv2 [12]
                    
                     port traffic) pass through this unitized BOEv3 order handler before reaching that order handler's corresponding matching engine. If a Member desires to access this optional unitized layer of the BOEv3 architecture (which it is not required to do), the Member would need to obtain a Unitized Logical Port for each unitized BOEv3 order handler and corresponding matching engine(s) that process the symbol(s) that Member 
                    ( print page 80616)
                    desires to trade.[13]
                    
                     The three new port types that have been adopted are: (1) BOE Unitized Logical Ports,[14]
                    
                     (2) Bulk Unitized Logical Ports,[15]
                    
                     and (3) Purge Unitized Logical Ports.[16]
                    
                     As noted above, use of Unitized Logical Ports is completely voluntary, and no Member is required, or under any regulatory obligation, to utilize them. 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”)) 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: 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-20th 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-20th 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-20th port set.
 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.[17]
                    
                     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.[18] 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 firm, 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. Particularly, the Exchange proposes 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 port type. As an example, a Member may request 2 BOE Unitized Logical Port Sets and 18 individual BOE Unitized Logical Ports for Matching Unit 1, providing a total max of 20 BOE Unitized Logical Ports on Matching Unit 1 specifically. This would result in having 20 BOE Unitized Logical Ports on Matching Unit 1 and 2 BOE Unitized Ports on all additional Matching Units as part of the 2 BOE Unitized Logical Port Sets requested. Additionally, a firm may request 20 Bulk Unitized Logical Port Sets and 20 Purge Unitized Logical Port Sets as those would constitute different port types.[19]
                    
                     The Exchange believes the proposed cap will be sufficient for the vast majority of Members.[20]
                    
                     The Exchange notes that it will monitor interest in Unitized Logical Ports and system capacity availability with the goal of increasing these limits to meet Members needs if and when the demand is there, and the Exchange is able to accommodate it. Additionally, Members will still be able to utilize the existing logical port connectivity offerings with no maximum limit in addition to their Unitized Logical Port allocation. 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 
                    ( print page 80617)
                    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.[21]
                    
                     A Member's ADO and ADQ will be aggregated together with any affiliated Member sharing at least 75% common ownership. FeeTier 1
Tier 2
Tier 3
Tier 4
Tier 5ADQ Fee Rate per 20,000 ADQ
≤250,000,000
>250,000,000
>500,000,000
>1,000,000,000
>3,500,000,000$0.00
$0.05
$0.075
$0.10
$0.20ADO Fee Rate per 1,000 ADO
≤2,000,000
>2,000,000
>2,500,000
>3,000,000
>3,500,000$0.00
$1.00
$1.50
$2.00
$2.50
 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.[22] The Exchange notes that market participants with incrementally higher ADO or ADQ have the potential residual effect of exhausting system resources, bandwidth, and capacity. Higher ADO or ADQ may therefore, in turn, create latency and impact other Members' ability to receive timely 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 Market Maker would have to exceed the high ADQ rate of 250,000,00 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 exhaust System resources, but to encourage efficient usage of network capacity. The Exchange also believes this proposal (and in particular the proposed fee amounts associated with higher ADO and ADQ) will reduce the incentive for market participants to engage in excessive order/quote and trade activity 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 revenue; rather, as noted above, it is intended to encourage efficient behavior so that market participants do not exhaust System resources. Moreover, the Exchange intends to provide Members with daily reports, free of charge, which will detail 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. The Exchange lastly notes that other exchanges have adopted various fee programs that assess incrementally higher fees to Members that have incrementally higher order and/or quoting trading activity for similar reasons.[23] 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.[24]
                    
                     Specifically, the Exchange believes the proposed rule change is consistent with the Section 6(b)(5) [25]
                    
                     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) [26]
                    
                     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) [27]
                    
                     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. The Exchange believes the proposed fees are reasonable because Unitized Logical Ports provide an optional, valuable service in that the ports are intended to create a more consistent, 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, deterministic experience for messages once received within the 
                    ( print page 80618)
                    Exchange's 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.[28]
                    
                     The Exchange believes the proposed fees are also reasonable to offset costs incurred in order to build out an entirely new unitized architecture. 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. Users can also continue to access the Exchange through existing logical port offerings at existing rates. 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 User 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 User may continue connecting to the Exchange in the manner it does today, unchanged. Indeed, the Exchange notes that since the adoption of Unitized Logical Ports on August 19, only approximately 27% of logical ports, bulk ports and purge ports being used are Unitized Logical Ports and approximately 73% are the preexisting Logical Ports, Bulk Ports and Purge Ports. 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 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 Users 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. As such, Members can choose whether or not to purchase Unitized Logical Ports based on their respective business needs. The proposed ascending tier structure for Unitized Logical Port Sets is reasonable, equitable and not unfairly discriminatory as it's 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 its apportioned fairly. 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. Furthermore, the Exchange already assesses higher fees to those that consume more Exchange resources for the existing non-Unitized Bulk Ports.[29] 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 believes it's reasonable, equitable and not unfairly discriminatory to assess higher fees for greater [
                    *sic*
                    ] higher ADO and ADQ rates because the potential impact on exchange systems, bandwidth and capacity becomes greater with increased ADO and ADQ rates. The Exchange believes the proposed fee amounts are reasonable as the Exchange believes them to commensurate with the proposed thresholds. Particularly, 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 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 appropriately reflect the benefits to different firms of being able to send orders and quotes into the Exchange's System and also believes 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.” [30] 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. The Exchange believes the proposed fees are therefore reasonable as they are designed to focus on activity that is truly disproportionate while fairly allocating costs. Further, the Exchange believes that the proposed ADO and ADQ fees are equitable and not unfairly discriminatory because [
                    *sic*] will be assessed uniformly to similarly situated 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 an ADQ, no market participant is assessed any fees unless it exceeds the proposed thresholds. As noted above, the Exchange believes the proposed ADO and ADQ thresholds (
                    *i.e.,*
                     2,000,000 ADO and 250,000,000 ADQ) are appropriately high rates respectively, such that the Exchange expects the vast majority of Members to not exceed them. While the Exchange has no way of predicting with certainty how the proposed changes will impact Member 
                    ( print page 80619)
                    activity, based on trading activity from the prior months the Exchange would expect that, absent any changes to Member behavior, all Members would fall within proposed ADO Tier 1 (and thus not be subject to any new fees) and approximately 74% of Members would fall within proposed ADQ Tier 1 (and thus also not be subject to any new fees). With respect to the remaining Members (approximately 26%) that would exceed the ADQ Tier 1 threshold based on current activity, the Exchange would anticipate, absent any change in behavior, approximately 3 Members to fall within Tier 2, approximately 6 Members to fall within Tier 3, approximately 3 Members to fall within Tier and no Members to fall within Tier 5. The Exchange believes it's 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. The Exchange also believes it's equitable and not unfairly discriminatory to aggregate Members trading activity with any affiliated Member sharing at least 75% common ownership in order to prevent members from shifting their order flow or quoting activity to other affiliates in order to circumvent the proposed fees. 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 the exchange's System by having excessive order and/or quoting trading activity.[31] The Exchange finally 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.[32] 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 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. As discussed, Members can also continue to access the Exchange through existing Logical Ports, which fees are not changing. 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. The Exchange also anticipates that the vast majority of Members on the Exchange will not be subject to any fees under the proposed tiers. 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 exchange memberships. Market Participants have numerous alternative venues that they may participate on, including 17 other options exchanges (including 3 other non-Cboe 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 investors and listed companies.” [33]
                    
                     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'. . . .” [34]
                    
                     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. 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.
                    ( print page 80620) 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 [35]
                    
                     and paragraph (f) of Rule 19b-4 [36]
                    
                     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. 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*rule-comments@sec.gov.*
                     Please include file number SR-CboeBZX-2024-088 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-2024-088. 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 submission, all subsequent amendments, all written statements with respect to the proposed rule change that are filed with the Commission, and all written communications relating to the proposed rule change between the Commission and any person, other than those that may be withheld from the public in accordance with the provisions of 5 U.S.C. 552, will be available for website viewing and printing in the Commission's Public Reference Room, 100 F Street NE, Washington, DC 20549, on official business days between the hours of 10 a.m. and 3 p.m. Copies of the filing also will be available for inspection and copying at the principal office of the Exchange. Do not include personal identifiable information in submissions; you should submit only information that you wish to make available publicly. We may redact in part or withhold entirely from publication submitted material that is obscene or subject to copyright protection. All submissions should refer to file number SR-CboeBZX-2024-088 and should be submitted on or before October 24, 2024. For the Commission, by the Division of Trading and Markets, pursuant to delegated authority.[37] Vanessa A. Countryman, Secretary.


# Footnotes

1.
    
                         15 U.S.C. 78s(b)(1). Back to Citation
 2.
    
                         17 CFR 240.19b-4. Back to Citation
 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 this filing. Back to Citation
 4.
    
                          
                        *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. Back to Citation
 5.
    
                         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). Back to Citation
 6.
    
                         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/​US_​Options_​FIX_​Specification.pdf.* Back to Citation
 7.
    
                          
                        *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. Back to Citation
 8.
    
                         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. Back to Citation
 9.
    
                         
                        *See*
                         Securities Exchange Act Release 100582 (July 23, 2024), 89 FR 60958 (July 29, 2024) (SR-CboeBZX-2024-071). Back to Citation
 10.
    
                         The BOE protocol is a proprietary order entry protocol used by Members to connect to the Exchange. The current version is BOEv2. Back to Citation
 11.
    
                         
                        *See*
                         Securities Exchange Act Release No. 100582 (July 23, 2024) 89 FR 60958 (July 29, 2024) (SR-CboeBZX-2024-071). Back to Citation
 12.
    
                         The Exchange anticipates decommissioning BOEv2 in February 2025. Back to Citation
 13.
    
                         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. Back to Citation
 14.
    
                         Similar to the Exchange's preexisting Logical Ports, the new Unitized Logical Ports allow Members to submit orders and quotes. Back to Citation
 15.
    
                         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. Back to Citation
 16.
    
                         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. Back to Citation
 17.
    
                         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. Back to Citation
 18.
    
                         The Exchange proposes to include this example in the Fee Schedule to provide further clarity as to the application of the proposed fees. Back to Citation
 19.
    
                         The Exchange proposes to include this example in its Fee Schedule to provide clarity as to how Unitized Logical Port fees will be assessed. Back to Citation
 20.
    
                         The Exchange notes that one Member has indicated that it 
                        *may*
                         desire more than the current maximum in the future. Back to Citation
 21.
    
                         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). Back to Citation
 22.
    
                         The Exchange proposes to include this example in the Fees Schedule to provide further clarity as to the application of the proposed fees. Back to Citation
 23.
    
                          
                        *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). Back to Citation
 24.
    
                         15 U.S.C. 78f(b). Back to Citation
 25.
    
                         15 U.S.C. 78f(b)(5). Back to Citation
 26.
    
                          
                        *Id.* Back to Citation
 27.
    
                         15 U.S.C. 78f(b)(4). Back to Citation
 28.
    
                          
                        *See*
                         Securities Exchange Act Release 100582 (July 23, 2024), 89 FR 60958 (July 29, 2024) (SR-CboeBZX-2024-071). Back to Citation
 29.
    
                          
                        *See*
                         Cboe U.S. Options Fees Schedule, BZX Options, Options Logical Port Fees, Ports with Bulk Quoting Capabilities. Back to Citation
 30.
    
                          
                        *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). Back to Citation
 31.
    
                         See supra note 20. Back to Citation
 32.
    
                          
                        *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. Back to Citation
 33.
    
                          
                        *See*
                         Securities Exchange Act Release No. 51808 (June 9, 2005), 70 FR 37496, 37499 (June 29, 2005). Back to Citation
 34.
    
                         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)). Back to Citation
 35.
    
                         15 U.S.C. 78s(b)(3)(A). Back to Citation
 36.
    
                         17 CFR 240.19b-4(f). Back to Citation
 37.
    
                             17 CFR 200.30-3(a)(12). Back to Citation


[FR Doc. 2024-22736 Filed 10-2-24; 8:45 am] BILLING CODE 8011-01-P