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Alerts and Notices Trader Alerts

Trader Alert 23-20: MEMX Options Exchange Specification Update

On Friday, June 30, 2023, MEMX Options released new versions of all its specifications.  Version 1.3 can be downloaded here.  The change summary is listed below and all details are outlined in the Errata included in the download. Additional Resources: Our Market Operations and Member Experience teams are here for any of your questions.   MEMX Market […]

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Alerts and Notices Product Notices

Product Notice 23-152: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 23-149 to 23-151: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 23-148: Additional Exchange Products Approved for Trading

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Effective Rule Filings Rule Filings

SR-MEMX-2023-11: Proposal to Establish Common Criteria and Procedures for Halting and Resuming Trading in Equity Securities

Date Filed: June 23, 2023 Description: Proposed rule change to establish common criteria and procedures for halting and resuming trading in equity securities in the event of regulatory or operational issues, reorganize the text of the current relevant rule, and make conforming changes to related rules.

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Alerts and Notices Trader Alerts

Trader Alert 23-19: Holiday Reminder – Independence Day

MEMX will be closed Tuesday, July 4, 2023, in observance of Independence Day.The Exchange will support an abbreviated trading schedule on Monday, July 3,2023. Normal trading will resume on Wednesday, July 5, 2023.  MEMX Abbreviated Trading Schedule: 7:00 AM ET – Pre-Market  9:30 AM ET – Market  1:00 PM ET – Post-Market  2:00 PM ET […]

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Alerts and Notices Product Notices

Product Notice 23-142 to 23-147: Additional Exchange Products Approved for Trading

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605 Reports

May 2023

Rule 605 Disclosure of Order Execution Information

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Alerts and Notices Product Notices

Product Notice 23-138 to 23-141: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 23-135 to 23-137: Additional Exchange Products Approved for Trading