U.S. Options

Change to the Penny Interval Program for September 1, 2026

Change to Opening and Intra-day Quote Width Requirements for Symbol DDOG Effective Thursday, August 27, 2026

Market for Underlying Security Used for Openings on MIAX Options and MIAX Emerald Options for Newly Listed Symbols Effective Tuesday, August 25, 2026

Change to the Penny Interval Program for August 24, 2026

Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, and MIAX Sapphire Options for Newly Listed Adjusted Symbol MSTU2 Effective Monday, August 24, 2026

Update to New Selective Liquidity Auto Purge (SLAP) Functionality Implementation Date

Update to Aggregate Risk Manager Change to Adopt Origin Multiplier Implementation Date

Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbols Effective Friday, August 21, 2026