Currently, expiring AM-settled options cease trading at the market close on the business day prior to the expiration date. Upon the effective date, and in accordance with Cboe Rule 4.13 as amended by rule filing SR-CBOE-2025-011, for classes that offer trading during the GTH session, the Exchange will allow trading of expiring AM-settled index options on their expiration date during all or part of the GTH session as detailed below: Only SPX and VIX classes are impacted by this change initially, as both have AM-settled options that offer trading during the GTH session. However, any classes that have AM-settled options and are added to the GTH session at a future date may also have trading extended into the GTH session for their expiring AM-settled options.