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Effective Rule Filings Rule Filings

SR-MEMX-2026-16: Proposal to Amend the Exchange’s Fee Schedule

Date Filed: May 29, 2026 Description: Proposal to amend the Exchange’s Fee Schedule to: (i) reduce the base rebate for executions of Added Price Improved Volume, Added Non-Midpoint Non-Displayed Volume, and Added Midpoint Non-Displayed Volume; (ii) modify the Non-Display Add Tiers by adopting a new Non-Display Add Tier 2 and eliminating Added Price Improved Volume […]

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Effective Rule Filings Rule Filings

SR-MEMX-2026-15: Proposal to Amend the Exchange’s Options Fee Schedule

Date Filed: May 29, 2026 Description: Proposal to amend the MEMX Options Fee Schedule (the “Options Fee Schedule”) by eliminating the Volume Tier 1. 

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Effective Rule Filings Rule Filings

SR-MEMX-2026-14: Proposal to Amend Rules 18.7 and 18.9 to Increase the Position and Exercise Limits for Options on IBIT

Date Filed: May 27, 2026 Description: Proposed rule change to amend Rule 18.7, Position Limits, and Rule 18.9, Exercise Limits, regarding the position and exercise limits for options on the iShares Bitcoin Trust ETF (“IBIT”).

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Pending Rule Filings Rule Filings

SR-MEMX-2026-13: Proposal to Amend Rules 19.3 and 19.4

Date Filed: May 21, 2026 Description: Proposal to amend Rule 19.3, Criteria for Underlying Securities, and Rule 19.4, Withdrawal of Approval of Underlying Securities, to establish listing criteria and withdrawal standards for options on Commodity-Based Trusts that hold multiple crypto assets.

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Effective Rule Filings Rule Filings

SR-MX2-2026-02: Proposal to Amend Rule 2.4, Mandatory Participation in Testing of Backup Systems

Date Filed: May 20, 2026 Description: Proposal to amend Rule 2.4, Mandatory Participation in Testing of Backup Systems, to amend the manner in which the Exchange will designate certain Options Members to participate in its mandatory disaster recovery testing pursuant to Regulation SCI andMX2 Rule 2.4 for the first calendar year in which the Exchange […]

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Effective Rule Filings Rule Filings

SR-MX2-2026-01: Proposal to Amend Rule 2.8

Date Filed: April 29, 2026 Description: Proposal to amend Rule 2.8, Voluntary Termination of Rights as a Member

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Effective Rule Filings Rule Filings

SR-MEMX-2026-12: Proposal to Amend Rule 2.8

Date Filed: April 29, 2026 Description: Proposal to Amend Rule 2.8, Voluntary Termination of Rights as a Member

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Effective Rule Filings Rule Filings

SR-MEMX-2026-11: Proposal to establish fees for Industry Members related to certain historical CAT costs

Date Filed: April 27, 2026 Description: Proposed rule change to establish fees for Industry Members related to certain historical costs of the CAT NMS Plan incurred prior to January 1, 2022.

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Effective Rule Filings Rule Filings

SR-MEMX-2026-10: Proposal to establish fees for Industry Members related to reasonably budgeted CAT costs

Date Filed: April 27, 2026 Description: Proposal rule change to establish fees for Industry Members related to reasonably budgeted CAT costs of the CAT NMS Plan for the period from May 1, 2026 through December 31, 2026.  

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Effective Rule Filings Rule Filings

SR-MEMX-2026-09: Proposal to Amend the Exchange’s Fee Schedule

Date Filed: March 31, 2026 Description: Proposal to amend the Exchange’s Fee Schedule to:(i) modify the required criteria under Liquidity Provision Tier 4, and (ii) adopt a new Retail Sub-Dollar Liquidity Removal Tier.