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Effective Rule Filings Rule Filings

SR-MEMX-2026-30: Proposal to Amend the Exchange’s Options Fee Schedule

Date Filed: August 31, 2026 Description: Proposal to amend the Options Fee Schedule by: (i) increasing the transaction rebate provided for Customer capacity executions that add liquidity in Non-Penny options; (ii) reducing the rebate for Market Maker capacity executions that add liquidity in Penny options; (iii) reducing the rebate for Market Maker capacity executions that […]

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Effective Rule Filings Rule Filings

SR-MEMX-2026-29: Proposal to Amend Rule 11.23(b)(2)

Date Filed: August 28, 2026 Description: Proposal to amend Rule 11.23(b)(2) concerning the resumption of trading following a Level 3 market-wide circuit breaker (“MWCB”) halt in connection with the extension of exchange trading hours to 23 hours per day, 5 days per week

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Effective Rule Filings Rule Filings

SR-MEMX-2026-28: Proposal to Amend the Exchange’s Rules to Permit 23×5 Trading

Date Filed: August 28, 2026 Description: Proposal to amend the Exchange’s rules to permit the trading of equity securities and UTP Exchange Traded Products on the Exchange 23 hours per day, five days per week. 

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Effective Rule Filings Rule Filings

SR-MX2-2026-04: Proposal to Amend Rule 20.6

Date Filed: August 24, 2026 Description: Proposal to amend Exchange Rule 20.6 (Nullification and Adjustment of Options Transactions including Obvious Errors) to eliminate the requirement regarding the maintenance of a minimum roster of representatives eligible to serve on the Exchange’s Obvious Error Panel.

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Effective Rule Filings Rule Filings

SR-MEMX-2026-27: Proposal to Amend Rule 20.6

Date Filed: August 13, 2026 Description: Proposal to amend Exchange Rule 20.6 (Nullification and Adjustment of Options Transactions including Obvious Errors) to eliminate the requirement regarding the maintenance of a minimum roster of representatives eligible to serve on the Exchange’s Obvious Error Panel.

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Effective Rule Filings Rule Filings

SR-MEMX-2026-26: Proposal to Amend Rule 13.4

Date Filed: August 12, 2026 Description: Proposal to amend Rule 13.4(a) to reflect the current operation of TXSE Exchange.

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Pending Rule Filings Rule Filings

SR-MEMX-2026-25: Proposal to Adopt Rules for the Listing and Trading of Securities Event Contracts

Date Filed: August 11, 2026 Description: Proposal to adopt new Chapter 30 of the Exchange’s Rules to provide for the listing and trading of securitiesevent contracts on the Exchange’s options platform (“MEMX Options”).

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Effective Rule Filings Rule Filings

SR-MEMX-2026-24: Proposal to Amend the Exchange’s Fee Schedule

Date Filed: August 11, 2026 Description: Proposal to amend the Exchange’s Fee Schedule to modify the required criteria under Retail Sub-Dollar Liquidity Removal Tier 1.

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605 Reports

July 2026

Rule 605 Disclosure of Order Execution Information