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###### Securities and Exchange Commission

          - [Release No. 34-92090; File No. SR-MIAX-2021-22]

                    Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (“Act”),[1]                                          and Rule 19b-4 thereunder,[2]                                          notice is hereby given that on May 21, 2021, Miami International Securities Exchange, LLC (“MIAX Options” or the “Exchange”) filed with the Securities and Exchange Commission (“Commission”) the proposed rule change as described in Items I, II, and III below, which Items have been prepared by the Exchange. The Exchange filed the proposed rule change pursuant to Section 19(b)(3)(A)(iii) of the Act [3]                                          and Rule 19b-4(f)(6) thereunder.[4]                                          The Commission is publishing this notice to solicit comments on the proposed rule change from interested persons.                

## I. Self-Regulatory Organization's Statement of the Terms of Substance of the Proposed Rule Change

                    The Exchange is filing a proposal to delay implementation of the change to allow a component of a complex order [5]                                          that legs into the Simple Order Book [6]                                          to execute at a price that is outside the NBBO.[7] 

                    The text of the proposed rule change is available on the Exchange's website at                     *http://www.miaxoptions.com/​rule-filings/​*                     at MIAX Options' principal office, 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.                          ( print page 30509)    

### A. Self-Regulatory Organization's Statement of the Purpose of, and Statutory Basis for, the Proposed Rule Change

#### 1. Purpose

                    On October 22, 2019, the Exchange filed a proposed rule change to amend subsection (c)(2)(iii) of Exchange Rule 518, Complex Orders, to remove the provision which provides that a component of a complex order that legs into the Simple Order Book may not execute at a price that is outside the NBBO.[8]                                          The proposed rule change indicated that the Exchange would announce the implementation date of the proposed rule change by Regulatory Circular to be published no later than 90 days following the operative date of the proposed rule. The implementation date will be no later than 90 days following the issuance of the Regulatory Circular. The Exchange delayed the implementation of this functionality until the second quarter of 2021.[9]                                          The Exchange now proposes to delay the implementation of this functionality until the second quarter of 2022.                

The Exchange proposes this delay in order to allow the Exchange to complete its reprioritization of its software delivery and release schedule as a result of a shift in priorities due to the impact the coronavirus pandemic has had on Exchange operations. The Exchange will issue a Regulatory Circular notifying market participants at least 45 days prior to implementing this functionality.

#### 2. Statutory Basis

                    The Exchange believes that its proposed rule change is consistent with Section 6(b) of the Act [10]                                          in general, and furthers the objectives of Section 6(b)(5) of the Act [11]                                          in particular, in that it is 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 mechanisms of a free and open market and a national market system and, in general, to protect investors and the public interest by allowing the Exchange additional time to plan and implement the proposed functionality.                

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

The Exchange does not believe that the proposed rule change will impose any burden on competition that is not necessary or appropriate in furtherance of the purposes of the Act. The Exchange's proposal to delay the implementation of the proposed functionality does not impose an undue burden on competition. Delaying the implementation will simply allow the Exchange additional time to properly plan and implement the proposed functionality.

The Exchange does not believe that the proposed rule change will impose any burden on intramarket competition as the delay will apply equally to all Members of the Exchange.

The Exchange does not believe that the proposed rule change will impose any burden on intermarket competition as the proposal is to delay the implementation of approved functionality which affects MIAX Members only and does not impact intermarket competition.

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

Written comments were neither solicited nor received.

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

                    The Exchange has filed the proposed rule change pursuant to Section 19(b)(3)(A)(iii) of the Act [12]                                          and Rule 19b-4(f)(6) thereunder.[13]                                          Because the proposed rule change does not: (i) Significantly affect the protection of investors or the public interest; (ii) impose any significant burden on competition; and (iii) become operative prior to 30 days from the date on which it was filed, or such shorter time as the Commission may designate, if consistent with the protection of investors and the public interest, the proposed rule change has become effective pursuant to Section 19(b)(3)(A) of the Act and Rule 19b-4(f)(6)(iii) thereunder.                

                    At any time within 60 days of the filing of such 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 shall institute proceedings under Section 19(b)(2)(B) [14]                                          of the Act 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 ( http://www.sec.gov/​rules/​sro.shtml ); or                
    - Send an email to rule-comments@sec.gov.                      Please include File Number SR-MIAX-2021-22 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-MIAX-2021-22. This file number should be included on the subject line if email is used. To help the Commission process and review your comments more efficiently, please use only one method. The Commission will post all comments on the Commission's internet website (                    *http://www.sec.gov/​rules/​sro.shtml*). Copies of the submission, all subsequent amendments, all written statements with respect to the proposed rule change that are filed with the Commission, and all written communications relating to the proposed rule change between the Commission and any person, other than those that may be withheld from the public in accordance with the provisions of 5 U.S.C. 552, will be available for website viewing and printing in the Commission's Public Reference Room, 100 F Street, NE, Washington, DC 20549, on official business days between the hours of 10:00 a.m. and 3:00 p.m. Copies of the filing also will be available for inspection and copying at the principal office of the Exchange. All comments received will be posted without change. Persons submitting comments are cautioned that we do not redact or edit personal identifying information from comment submissions. You should                           ( print page 30510)                        submit only information that you wish to make available publicly. All submissions should refer to File Number SR-MIAX-2021-22, and should be submitted on or before June 29, 2021.                

                        For the Commission, by the Division of Trading and Markets, pursuant to delegated authority.15

J. Matthew DeLesDernier,

Assistant Secretary.

 

# Footnotes

1.                             15 U.S.C. 78s(b)(1).                    
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2.                             17 CFR 240.19b-4.                    
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3.                             15 U.S.C. 78s(b)(3)(A)(iii).                    
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4.                             17 CFR 240.19b-4(f)(6).                    
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5.                             A “complex order” is any order involving the concurrent purchase and/or sale of two or more different options in the same underlying security (the “legs” or “components” of the complex order), for the same account, in a ratio that is equal to or greater than one-to-three (.333) and less than or equal to three-to-one (3.00) and for the purposes of executing a particular investment strategy. Mini-options may only be part of a complex order that includes other mini-options. Only those complex orders in the classes designated by the Exchange and communicated to Members via Regulatory Circular with no more than the applicable number of legs, as determined by the Exchange on a class-by-class basis and communicated to Members via Regulatory Circular, are eligible for processing.                         *See*                         Exchange Rule 518(a)(5).                    
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6.                             The “Simple Order Book” is the Exchange's regular electronic book of orders and quotes.                         *See*                         Exchange Rule 518(a)(15).                    
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7.                             The term “NBBO” means the national best bid or offer as calculated by the Exchange based on market information received by the Exchange from the appropriate Securities Information Processor (“SIP”).                         *See*                         Exchange Rule 518(a)(14).                    
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8.                                                     *See*                         Securities Exchange Release No. 87440 (November 1, 2019), 84 FR 60117 (November 7, 2019) (SR-MIAX-2019-45).                    
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9.                                                     *See*                         Securities Exchange Release No. 90507 (November 24, 2020), 85 FR 77321 (December 1, 2020) (SR-MIAX-2020-36).                    
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10.                             15 U.S.C. 78f(b).                    
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11.                             15 U.S.C. 78f(b)(5).                    
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12.                             15 U.S.C. 78s(b)(3)(A)(iii).                    
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13.                             17 CFR 240.19b-4(f)(6).                    
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14.                             15 U.S.C. 78s(b)(2)(B).                    
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15.                             17 CFR 200.30-3(a)(12).                    
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[FR Doc. 2021-11912 Filed 6-7-21; 8:45 am]

BILLING CODE 8011-01-P