May 20, 2026
MIAX Emerald RC-2026-58
Market for Underlying Security Used for Openings on MIAX Options and MIAX Emerald Options for Newly Listed Symbol DRAM Effective Thursday, May 21, 2026
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May 20, 2026
MIAX Options RC-2026-69
Market for Underlying Security Used for Openings on MIAX Options and MIAX Emerald Options for Newly Listed Symbol DRAM Effective Thursday, May 21, 2026
May 20, 2026
MIAX Pearl Equities PC 2026-5146
Sophus Capital Emerging Market ETF – EMEM
May 20, 2026
MIAX Pearl Equities PC 2026-5145
iShares Flexible Equity Active ETF – BFLX
MIAX Options
SR-MIAX-2026-22
Effective / Approved
Amend Rule 519C, Mass Cancellation of Trading Interest, to adopt a new Selective Liquidity Auto Purge ("SLAP") feature, which provides more granular mass cancellation functionality. A Regulatory Circular will be issued 30 days prior to the implementation date. This proposal will be implemented on August 31, 2026.
May 19, 2026
Miami International Holdings Announces OCC Clearing and Settlement Agreement for MIAX Futures Exchange
May 19, 2026
MIAX Sapphire RC-2026-73
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbol MAIR Effective Wednesday, May 20, 2026
May 19, 2026
MIAX Emerald RC-2026-57
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbol MAIR Effective Wednesday, May 20, 2026
May 19, 2026
MIAX Pearl RC-2026-69
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbol MAIR Effective Wednesday, May 20, 2026
May 19, 2026
MIAX Options RC-2026-68
Market for Underlying Security Used for Openings on MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options for Newly Listed Symbol MAIR Effective Wednesday, May 20, 2026