August 21, 2025
MIAX Pearl Equities PC 2025-4544
YieldMax Ultra Short Option Income Strategy ETF – SLTY
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MIAX Pearl
SR-PEARL-2025-39
Effective / Approved
Proposal to amend Rule 2610, Units of Trading, to conform with the definition of Round Lot under Rule 600 of the Regulation NMS that is to be implemented in November 2025, and make conforming non-substantive changes to Rule 2611, Odd and Mixed Lots, Rule 2614, Orders and Order Instructions, and Rule 2616, Priority of Orders. This proposal will be implemented on November 3, 2025.
August 21, 2025
August 21, 2025
MIAX Sapphire RC-2025-61
Position and Exercise Limits Increase for Symbols GBTC, BTC, and BITB
August 21, 2025
MIAX Emerald RC-2025-58
Position and Exercise Limits Increase for Symbols GBTC, BTC, and BITB
August 21, 2025
MIAX Pearl RC-2025-60
Position and Exercise Limits Increase for Symbols GBTC, BTC, and BITB
August 21, 2025
MIAX Options RC-2025-59
Position and Exercise Limits Increase for Symbols GBTC, BTC, and BITB
MIAX Futures
MIAX Futures-DCO-25-17
Effective / Approved
Rule Certification Submission Pursuant to Regulation 40.6(a); Amendments to MIAX Futures Rules
August 20, 2025
MIAX Futures
MIAX Futures-DCM-25-35
Effective / Approved
Rule Certification Submission Pursuant to Regulation 40.6(a); Amendments to MIAX Futures Rules
August 20, 2025
August 20, 2025
MIAX Pearl Equities PC 2025-4543
Janus Henderson Global Artificial Intelligence ETF– JHAI
August 20, 2025
MIAX Pearl Equities PC 2025-4542
John Hancock Global Senior Loan ETF– JHLN