MIAX Options® Exchange Rule Filings
As a registered national securities exchange, MIAX Options is required to submit to the SEC, pursuant to Section 19 of the Securities Exchange Act of 1934 (the “Exchange Act”) and Rule 19b-4 thereunder, proposed rule changes. MIAX Options is required to post its rule filings on its website within two business days after submission. Rule filings are not effective until approved by the SEC, with the exception of certain types of rule filings that may take effect upon filing with the SEC if they meet the conditions specified under Section 19 of the Exchange Act and Rule 19b-4 thereunder. MIAX Options will post below pending rule filings submitted by the Exchange, followed by rule changes that have been approved by the SEC or became immediately effective pursuant to the Exchange Act.
SR-MIAX-2026-23
Pending
Amend the implementation date to Q3 of 2026 for the change to the AIS feed. A Regulatory Circular will be issued 30 days prior to the implementation date.
May 27, 2026
SR-MIAX-2026-22
Pending
Amend Exchange Rule 519C, Mass Cancellation of Trading Interest, to adopt a new Selective Liquidity Auto Purge ("SLAP") feature, which provides more granular mass cancellation functionality.
May 19, 2026
SR-MIAX-2026-21
Effective / Approved
Amend Exchange Rule 515A, MIAX Price Improvement Mechanism (“PRIME”) and PRIME Solicitation Mechanism, to allow assigned Market Makers to be solicited as contra to Agency Orders in PRIME and cPRIME auctions.
May 14, 2026
SR-MIAX-2026-20
Effective / Approved
Amend Rule 307, Position Limits, and Rule 309, Exercise Limits, to increase the position and exercise limits for iShares Bitcoin Trust ETF (“IBIT”).
May 07, 2026