MIAX Options® Regulatory Circulars
December 29, 2025
MIAX Options RC-2025-105
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 ABL (ABX) Effective Tuesday, December 30, 2025
December 26, 2025
MIAX Options RC-2025-104
Changes to the Expanded Opening and Intra-day Quote Width Requirements and Order Monitor Settings for Certain Symbols Trading on MIAX Options and MIAX Emerald Options Beginning Friday, January 2, 2026, Through Tuesday, March 31, 2026
December 22, 2025
MIAX Options RC-2025-103
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 Options RC-2025-102
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 Options RC-2025-101
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 Options RC-2025-100
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 Options RC-2025-99
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 Options RC-2025-98
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