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Alerts and Notices Product Notices

Product Notice 21-181 to 21-182: Additional Exchange Products Approved for Trading

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Alerts and Notices Trader Alerts

Trader Alert 21-22: Updated MEMO FIX and MEMO SBE Specifications July 26, 2021

On July 26, 2021, MEMX has released new versions of its MEMO FIX and MEMO SBE specifications. The new 1.6 versions can be downloaded here. Please note, this update is not a trading platform update/change, but rather a specification update to include details on Pending New Execution report messages and Order Reject Reason Codes as […]

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Regulatory Notices

Regulatory Notice 21-06: Nominations for Member Representative Director

Date: July 26, 2021 Description: Notice of Annual Meeting and Nominees for Member Representative Director Positions on the Exchange’s Board of Directors

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Alerts and Notices Product Notices

Product Notice 21-177 to 21-180: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-173 to 21-176: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-171 to 21-172: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-167 to 21-170: Additional Exchange Products Approved for Trading

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Alerts and Notices Trader Alerts

Trader Alert 21-21: UAT on July 17, 2021

On Saturday, July 17, 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, July 17, 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 21-161 to 21-166: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-159 to 21-160: Additional Exchange Products Approved for Trading