All Options Exchanges Regulatory Circulars
September 28, 2026
MIAX Sapphire RC-2026-147
Market for Underlying Security Used for Openings on MIAX Sapphire Options for Newly Listed Adjusted Symbol EU1 Effective Tuesday, September 29, 2026
September 28, 2026
MIAX Sapphire RC-2026-146
Changes to the Expanded MIAX Pearl Order Monitor and MIAX Sapphire Order Monitor Settings for Certain Symbols Beginning Thursday, October 1, 2026, Through Thursday, December 31, 2026
September 28, 2026
MIAX Pearl RC-2026-142
Changes to the Expanded MIAX Pearl Order Monitor and MIAX Sapphire Order Monitor Settings for Certain Symbols Beginning Thursday, October 1, 2026, Through Thursday, December 31, 2026
September 28, 2026
MIAX Options RC-2026-150
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 Thursday, October 1, 2026, Through Thursday, December 31, 2026
September 28, 2026
MIAX Emerald RC-2026-109
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 Thursday, October 1, 2026, Through Thursday, December 31, 2026
September 23, 2026
MIAX Sapphire RC-2026-145
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbol STDN Effective Thursday, September 24, 2026
September 23, 2026
MIAX Pearl RC-2026-141
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbol STDN Effective Thursday, September 24, 2026
September 23, 2026
MIAX Options RC-2026-149
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbol STDN Effective Thursday, September 24, 2026