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. 34-103891; File No. SR-BX-2025-017] September 5, 2025. 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 August 26, 2025, Nasdaq BX, Inc. (“BX” or “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 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 establish “CORE FIX” as a new Order Entry Protocol (defined below) on the Exchange, to amend Nasdaq BX Equity 4, Rules 4120, 4702, 4703, and 4757 to add the new CORE FIX protocol, as described further below, and to align the Exchange rulebook's description of RPI Orders and Retail Orders with their current functionality. The proposed amendments will not make any other substantive changes to the rules. The text of the proposed rule change is available on the Exchange's website at https://listingcenter.nasdaq.com/​rulebook/​bx/​rulefilings , and at the principal office of the Exchange. II. Self-Regulatory Organization's Statement of the Purpose of, and Statutory Basis for, the Proposed…
Citation: 90 FR 43705
