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. 34-106071; File No. SR-CboeBYX-2026-014] August 11, 2026. I. Introduction On April 28, 2026, Cboe BYX Exchange, Inc. (“Exchange” or “BYX”) filed with the Securities and Exchange Commission (“Commission”), pursuant to Section 19(b)(1)  [ 1 ] of the Securities Exchange Act of 1934 (“Act”)  [ 2 ] and Rule 19b-4 thereunder, [ 3 ] a proposed rule change to introduce an optional, Contingent Instruction applicable to Periodic Auction Only Orders, introduce a time-in-force of Auction or Cancel, and make conforming changes to its Periodic Auction processing behavior to support the proposed Contingent Instruction. The proposed rule change was published for comment in the Federal Register on May 14, 2026. [ 4 ] On June 18, 2026, pursuant to Section 19(b)(2)(A)(ii)(I) of the Act, [ 5 ] the Commission designated a longer period within which to approve the proposed rule change, disapprove the proposed rule change, or institute proceedings to determine whether to approve or disapprove the proposed rule change. [ 6 ] The Commission has not received any comments on the proposal. On August 6, 2026, the Exchange filed Amendment No. 1 to the proposed rule change, which replaced and superseded the original filing in its entirety. The Commission is publishing this Notice and Order to solicit comment on Amendment No. 1 in Sections II and III below, which sections are being published as file…
Citation: 91 FR 52735
