On January 25, 2024, Cboe BYX Exchange, Inc. (“Exchange”) filed with the Securities and Exchange Commission (“Commission”), pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (“Act”),^[1] and Rule 19b-4 thereunder,^[2] a proposed rule change to amend the definition of Retail Order,^[3] and codify interpretations and policies regarding permissible uses of algorithms by Retail Member Organizations.^[4] The proposed rule change was published for comment in the Federal Register on February 13, 2024.^[5] On March 21, 2024, pursuant to Section 19(b)(2) of the Act,^[6] 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 disapprove the proposed rule change.^[7] On May 13, 2024, the Commission instituted proceedings under Section 19(b)(2)(B) of the Act ^[8] to determine whether to approve or disapprove the proposed rule change.^[9] On July 10, 2024, the Exchange submitted Amendment No. 1 to the proposed rule change, which replaced and superseded the proposed rule change as originally filed. On July 17, 2024, the Exchange withdrew Amendment No. 1. On August 7, 2024, the Exchange withdrew the proposed rule change (SR-CboeBYX-2024-004).