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. 34-105045; File No. SR-CBOE-2025-069] March 18, 2026. I. Introduction On September 24, 2025, Cboe Exchange, Inc. (“Exchange” or “Cboe”) ( printed page 13908) 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 change the minimum increment for all series of options on the Cboe Magnificent 10 Index. The proposed rule change was published for comment in the Federal Register on September 30, 2025. [ 4 ] On November 3, 2025, 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 ] On December 17, 2025, the Commission instituted proceedings under Section 19(b)(2)(B) of the Act  [ 7 ] to determine whether to approve or disapprove the proposed rule change. [ 8 ] On February 18, 2026, the Exchange submitted Amendment No. 1 to the proposed rule change, which amended and superseded the proposed rule change as originally filed. [ 9 ] On March 5, 2026, the Exchange submitted Amendment No. 2 to the proposed rule change, which amended and superseded the proposed rule change, as modified b…
Citation: 91 FR 13907