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-2025-38
Effective / Approved
Amend Rule 307, Position Limits, and Rule 309, Exercise Limits, to increase the position and exercise limits for Grayscale Bitcoin Trust ("GBTC"), Grayscale Bitcoin Mini Trust ("BTC"), and Bitwise Bitcoin ETF ("BITB").
August 14, 2025
SR-MIAX-2025-37
Effective / Approved
Amend Rule 307, Position Limits, and Rule 309, Exercise Limits, to increase the position and exercise limits for iShares Bitcoin Trust ETF.
August 05, 2025
SR-MIAX-2025-36
Effective / Approved
Amend Rule 402, Criteria for Underlying Securities, Rule 307, Position Limits, and Rule 309, Exercise Limits, to list and trade options on the VanEck Bitcoin ETF.
July 30, 2025
SR-MIAX-2025-35
Effective / Approved
Amend the Rulebook to make minor, non-substantive edits.
July 28, 2025