MIAX Sapphire® Options Regulatory Circulars
December 26, 2025
MIAX Sapphire RC-2025-126
Changes to the Expanded MIAX Pearl Order Monitor and MIAX Sapphire Order Monitor Settings for Certain Symbols Beginning Friday, January 2, 2026, Through Tuesday, March 31, 2026
December 22, 2025
MIAX Sapphire RC-2025-125
Change to the Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Symbol QS Effective Tuesday, December 23, 2025
December 18, 2025
MIAX Sapphire RC-2025-124
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Symbol MDLN Effective Friday, December 19, 2025
December 17, 2025
MIAX Sapphire RC-2025-123
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 Thursday, December 18, 2025
December 09, 2025
MIAX Sapphire RC-2025-122
Change to the Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Symbol FSLY Effective Tuesday, December 9, 2025
December 08, 2025
MIAX Sapphire RC-2025-121
Change to the Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Symbol WMT Effective Tuesday, December 9, 2025
December 04, 2025
MIAX Sapphire RC-2025-120
Change to the Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Symbol LEU Effective Thursday, December 4, 2025
December 03, 2025
MIAX Sapphire RC-2025-119
Change to the Penny Interval Program for Wednesday, December 3, 2025