Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock
()
or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Designation of a Longer Period for Commission Action on a Proposed Rule Change to Make Permanent the Operation of its Program that Allows the Exchange to List P.M.-Settled Third Friday-of-the-Month S&P 500 Stock Index (“S&P 500”) Options (“SPX”) Series
Filter comments
Last Reviewed or Updated: Dec. 18, 2025