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Alerts and Notices Trader Alerts

Trader Alert 21-12: UAT on April 10, 2021

On Saturday, April 10, 2021, MEMX is planing to make the trading platform available for a UAT for Members to test in the production environment. Test Schedule for Saturday, April 10, 2021: Time (Eastern) Trading Status 8:30A  Session Available 9:00A  Pre-Market 9:30A  Market 12:00P  Post-Market 1:00P Post-Market Closed 1:15P  Session Closed Our Market Operations and Member Experience […]

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Alerts and Notices Product Notices

Product Notice 21-71 to 21-77: Additional Exchange Products Approved for Trading

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605 Reports

February 2021

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Alerts and Notices Product Notices

Product Notice 21-70: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-69: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-66 to 21-68: Additional Exchange Products Approved for Trading

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Alerts and Notices Trader Alerts

Trader Alert 21-11: Holiday Reminder – Closed April 2, 2021

MEMX will be closed Friday, April 2, 2021, in observance of Good Friday. Normal trading will resume on Monday, April 5, 2021.  

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Effective Rule Filings Rule Filings

SR-MEMX-2021-05: Extension of Clearly Erroneous Executions Pilot

Date Filed: March 23, 2021 Description: Proposal to extend the current pilot program related to MEMX Rule 11.15, “Clearly Erroneous Executions,” to the close of business on October 20, 2021.

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Alerts and Notices Product Notices

Product Notice 21-64 to 21-65: Additional Exchange Products Approved for Trading

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Effective Rule Filings Rule Filings

SR-MEMX-2021-04: Amendment to LLC Agreement of MEMX Holdings

Date Filed: March 22, 2021 Description: Proposed rule change to amend and restate the Fourth Amended and Restated Limited Liability Company Agreement of MEMX Holdings LLC as the Fifth Amended and Restated Limited Liability Company Agreement of MEMX Holdings LLC.