Pursuant to Section 11A(a)(3) of the Securities Exchange Act of 1934 (“Exchange Act”) ^[1] and Rule 608 thereunder,^[2] notice is hereby given that on September 3, 2026, MX2 LLC (“MX2” or the “Exchange”) filed with the Securities and Exchange Commission (“Commission”) an amendment to the National Market System Plan Governing the Consolidated Audit Trail (the “CAT NMS Plan” or “Plan”).^[3] The amendment adds MX2 as a Participant ^[4] to the CAT NMS Plan. The Commission is publishing this notice to solicit comments on the amendment from interested persons.

I. Description and Purpose of the Amendment

The amendment to the CAT NMS Plan adds MX2 as a Participant.^[5] The CAT NMS Plan provides that any Person ^[6] approved by the Commission as a national securities exchange or ( printed page 59823) national securities association under the Exchange Act may become a Participant by submitting to the Company ^[7] a completed application in the form provided by the Company.^[8] As a condition to admission as a Participant, said Person shall: (i) execute a counterpart of the CAT NMS Plan, at which time Exhibit A shall be amended to reflect the status of said Person as a Participant (including said Person's address for purposes of notices delivered pursuant to the CAT NMS Plan); and (ii) pay a fee to the Company as set forth in the Plan (the “Participation Fee”).^[9] The amendment to the Plan reflecting the admission of a new Participant shall be effective only when: (x) it is approved by the Commission in accordance with Rule 608 or otherwise becomes effective pursuant to Rule 608; and (y) the prospective Participant pays the Participation Fee.^[10]

MX2 has executed a copy of the current CAT NMS Plan, amended to include MX2 in the List of Parties (including the address of MX2) and paid the applicable Participation Fee.^[11]

II. Effectiveness of the Proposed Plan Amendment

The foregoing CAT NMS Plan amendment has become effective pursuant to Rule 608(b)(3)(iii) ^[12] because it involves solely technical or ministerial matters. At any time within sixty days of the filing of this amendment, the Commission may summarily abrogate the amendment and require that it be refiled pursuant to paragraph (a)(1) of Rule 608,^[13] if it appears to the Commission that such action is necessary or appropriate in the public interest, for the protection of investors or the maintenance of fair and orderly markets, to remove impediments to, and perfect the mechanisms of, a national market system or otherwise in furtherance of the purposes of the Exchange Act.

III. 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 Exchange Act. Comments may be submitted by any of the following methods:

Electronic Comments

• Use the Commission's internet comment form (www.sec.gov/​rules/​sro.shtml); or
• Send an email torule-comments@sec.gov. Please include file number 4-698 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 4-698. 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 ( 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 4-698 and should be submitted on or before October 9, 2026.