On April 29, 2021, Cboe BZX Exchange, Inc. (the “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 exclude a National Best Bid or Offer ^[3] (“NBBO”) from the calculation of the BZX Official Closing Price, as provided in Rule 11.23(c)(2)(B)(ii)(b), that is outside the bands provided under the National Market System Plan to Address Extraordinary Market Volatility (“Limit Up-Limit Down Plan” or “LULD Plan”).^[4]

The proposed rule change was published for comment in the Federal Register on May 18, 2021.^[5] On June 25, 2021, pursuant to Section 19(b)(2) of the Act,^[6] the Commission extended the time 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 to August 16, 2021.^[7] The Commission has received no comment letters on the proposed rule change. On August 12, 2021, the Exchange withdrew the proposed rule change (SR-CboeBZX-2021-036).