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###### Securities and Exchange Commission

          - [Release No. 34-83516; File No. SR-MRX-2018-21]

                    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 June 13, 2018, Nasdaq MRX, LLC (“MRX” or “Exchange”) filed with the Securities and Exchange Commission (“Commission”) the proposed rule change as described in Items I and II 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

The Exchange proposes to relocate the Exchange's rules pertaining to co-location and direct connectivity, which are presently at Section VI, subsections A (co-location) and B-D (direct connectivity) of the Exchange's Schedule of Fees, to the Exchange's new rulebook shell, entitled “General Rules,” at new General 8 (“Connectivity”), Sections 1 and 2, respectively.

                    The text of the proposed rule change is available on the Exchange's website at                     *http://nasdaqmrx.cchwallstreet.com/​,*                     at the principal office of the Exchange, and at the Commission's Public Reference Room.                

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

In its filing with the Commission, the Exchange included statements concerning the purpose of and basis for the proposed rule change and discussed any comments it received on the proposed rule change. The text of these statements may be examined at the places specified in Item IV below. The Exchange has prepared summaries, set forth in sections A, B, and C below, of the most significant aspects of such statements.

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

#### 1. Purpose

                    The Exchange proposes to relocate its rules governing co-location and direct connectivity services, which presently comprise Section VI, subsections A (co-location) and B-D (direct connectivity) of the Exchange's Schedule of Fees. The Exchange proposes to establish, within its new rulebook shell,[3]                                          a new General 8 heading, entitled “Connectivity,” to renumber Section VI, subsection A as Section 1 thereunder, and to renumber Section VI, subsections B, C, and D as Section 2(a), (b), and (c) thereunder.[4]                                          The Exchange also proposes to update internal cross-references in the renumbered Rules.                

The Exchange considers it appropriate to relocate these Rules to better organize its Rulebook. The other Affiliated Exchanges intend to propose similar reorganizations of their co-location and direct connectivity rules so that these rules will be harmonized among all of the Affiliated Exchanges.

The relocation of the co-location and direct connectivity rules is part of the Exchange's continued effort to promote efficiency and conformity of its processes with those of its Affiliated Exchanges. The Exchange believes that moving the co-location and direct connectivity rules to their new location will facilitate the use of the Rulebook by Members of the Exchange who are members of other Affiliated Exchanges. Moreover, the proposed changes are of a non-substantive nature and will not amend the relocated rules other than to update their numbers and make conforming cross-reference changes.

#### 2. Statutory Basis

                    The Exchange believes that its proposal is consistent with Section 6(b) of the Act,[5]                                          in general, and furthers the objectives of Section 6(b)(5) of the Act,[6]                                          in particular, in that it is designed to promote just and equitable principles of trade, 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, by improving the way its Rulebook is organized, providing ease of reference in locating co-location and direct connectivity rules, and harmonizing the Exchange's Rules with those of the other Affiliated Exchanges. As previously stated, the proposed Rule relocation is non-substantive.                

### 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 intermarket or intra-market competition that is not necessary or appropriate in furtherance of the purposes of the Act. The proposed changes do not impose a burden on competition because, as previously stated, they (i) are of a non-substantive nature, (ii) are intended to harmonize the Exchange's rules with those of its Affiliated Exchanges, and (iii) are intended to organize the Rulebook in a way that it will ease the Members' navigation and reading of the rules across the Affiliated Exchanges.

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

No written comments were either solicited or received.

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

                    Because the foregoing proposed rule change does not: (i) Significantly affect the protection of investors or the public interest; (ii) impose any significant burden on competition; and (iii) become operative for 30 days from the date on which it was filed, or such shorter time as the Commission may designate, it has become effective pursuant to Section 19(b)(3)(A) of the Act [7]                                          and Rule 19b-4(f)(6) thereunder.[8] 
      ( print page 30802)    
                    A proposed rule change filed pursuant to Rule 19b-4(f)(6) under the Act [9]                                          normally does not become operative for 30 days after the date of its filing. However, Rule 19b-4(f)(6)(iii) [10]                                          permits the Commission to designate a shorter time if such action is consistent with the protection of investors and the public interest. The Exchange has requested that the Commission waive the 30-day operative delay so that the proposed rule change may become operative upon filing. The proposed rule change merely relocates the co-location and direct connectivity rules in the Exchange's Schedule of Fees and updates rule cross-references. Accordingly, the Commission believes that waiver of the 30-day operative delay is consistent with the protection of investors and the public interest and hereby waives the operative delay and designates the proposed rule change operative upon filing.[11] 

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 shall 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 ( http://www.sec.gov/​rules/​sro.shtml ); or                
    - Send an email to rule-comments@sec.gov.                      Please include File Number SR-MRX-2018-21 on the subject line.                

### Paper Comments

    - Send paper comments in triplicate to Secretary, Securities and Exchange Commission, 100 F Street NE, Washington, DC 20549-1090.

                    All submissions should refer to File Number SR-MRX-2018-21. This file number should be included on the subject line if email is used. To help the Commission process and review your comments more efficiently, please use only one method. The Commission will post all comments on the Commission's internet website (                    *http://www.sec.gov/​rules/​sro.shtml*). Copies of the submission, all subsequent amendments, all written statements with respect to the proposed rule change that are filed with the Commission, and all written communications relating to the proposed rule change between the Commission and any person, other than those that may be withheld from the public in accordance with the provisions of 5 U.S.C. 552, will be available for website viewing and printing in the Commission's Public Reference Room, 100 F Street NE, Washington, DC 20549 on official business days between the hours of 10:00 a.m. and 3:00 p.m. Copies of the filing also will be available for inspection and copying at the principal office of the Exchange. All comments received will be posted without change. Persons submitting comments are cautioned that we do not redact or edit personal identifying information from comment submissions. You should submit only information that you wish to make available publicly. All submissions should refer to File Number SR-MRX-2018-21, and should be submitted on or before July 20, 2018.                

                        For the Commission, by the Division of Trading and Markets, pursuant to delegated authority.[12] 

Eduardo A. Aleman,

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.                             Recently, the Exchange added a shell structure to its Rulebook with the purpose of improving efficiency and readability and to align its rules closer to those of its five sister exchanges: The Nasdaq Stock Exchange, LLC; Nasdaq BX, Inc.; Nasdaq PHLX, LLC; Nasdaq ISE, LLC; and Nasdaq GEMX, LLC (together with MRX, the “Affiliated Exchanges”).                         *See*                         Securities Exchange Act Release No. 82172 (November 29, 2017), 82 FR 57495 (December 5, 2017) (SR-MRX-2017-26).                    
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4.                             The Exchange notes that as a consequence of this proposal, it will list its fees, in part, in Section VI of the Rulebook and, in part, in General 8.                    
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5.                             15 U.S.C. 78f(b).                    
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6.                             15 U.S.C. 78f(b)(5).                    
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7.                             15 U.S.C. 78s(b)(3)(A).                    
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8.                             17 CFR 240.19b-4(f)(6). In addition, Rule 19b-4(f)(6)(iii) requires a self-regulatory organization to give the Commission written notice of its intent to file the proposed rule change, along with a brief                                                 description and text of the proposed rule change, at least five business days prior to the date of filing of the proposed rule change, or such shorter time as designated by the Commission. The Exchange has satisfied this requirement.                    
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9.                             17 CFR 240.19b-4(f)(6).                    
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10.                             17 CFR 240.19b-4(f)(6)(iii).                    
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11.                             For purposes only of waiving the 30-day operative delay, the Commission also has considered the proposed rule's impact on efficiency, competition, and capital formation.                         *See*15 U.S.C. 78c(f).                    
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12.                                 17 CFR 200.30-3(a)(12).                        
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[FR Doc. 2018-13982 Filed 6-28-18; 8:45 am]

 BILLING CODE 8011-01-P