On December 27, 2023, 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 modify Rule 11.24 to introduce an Enhanced RPI Order and expand its Retail Price Improvement program to include securities priced below $1.00. The proposed rule change was published for comment in the Federal Register on January 17, 2024.^[3] On February 27, 2024, pursuant to Section 19(b)(2) of the Act,^[4] 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change.^[5] On March 6, 2024, the Exchange submitted Amendment No. 1 to the proposed rule change, which replaced and superseded the proposed rule change as originally filed.^[6] On April 16, 2024, the Commission issued notice of Amendment No. 1 and instituted proceedings under Section 19(b)(2)(B) of the Act ^[7] to determine whether to approve or disapprove the proposed rule change, as modified by Amendment No. 1.^[8] On July 9, 2024, the Commission extended the time period for approving or disapproving the proposed rule change to September 13, 2024.^[9] On July 29, 2024, the Exchange submitted Amendment No. 2 to the proposed rule change, which replaced and superseded the proposed rule change as modified by Amendment No. 1.^[10] On August 15, 2024, the Exchange withdrew the proposed rule change (SR-CboeBYX-2023-020).