Securities and Exchange Commission
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Securities and Exchange Commission [Release No. 34-106758; File No. SR-MX2-2026-09] October 28, 2026. 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 October 19, 2026, MX2 LLC (“MX2” or the “Exchange”) filed with the Securities and Exchange Commission (the “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 is filing with the Commission a proposed rule change to amend Rule 11.23, (“Trading Halts Due to Extraordinary Market Volatility/Market-Wide Circuit Breakers”) concerning the resumption of trading following a Level 3 Market-Wide Circuit Breaker (“MWCB”) halt (“Level 3 Market Decline”) in connection with the industry's expansion of trading hours to 23 hours per day, 5 days per week (“23/5 Trading”). The text of the proposed rule change is provided in Exhibit 5 and is available on the Exchange's website at https://info.memxtrading.com/​regulation/​rules-and-filings/​ . ( printed page 69022) II. Self-Regulatory Organization's Statement of the Purpose of, and Statutor…
Citation: 91 FR 69021
