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Alerts and Notices Trader Alerts Uncategorized

Trader Alert 22-24: Reminder – MEMX Regulation SCI Disaster Recovery Testing

In coordination with other market centers as part of SIFMA BCP testing, and in support of Regulation System Compliance and Integrity requirements, MEMX will host a test of its secondary/disaster recovery facilities on Saturday, October 15, 2022.  The scope for this weekend test will be a full feature test of all exchange functionality in order to […]

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Alerts and Notices Product Notices

Product Notice 22-187: Additional Exchange Products Approved for Trading

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Alerts and Notices Trader Alerts

Trader Alert 22-23:  Updated MEMO FIX, MEMO SBE, and Fix Drop Specifications

On August 16, 2022, MEMX released new versions of its current supported MEMO FIX, MEMO SBE, and FIX Drop specifications. Version 1.8 Rev-B, 1.9 Rev-B, and 1.10 Rev-B can be found here using the “upcoming version” link. The main reason for this update is to add 2 new LastLiquidityIndType codes, please see the Specification Errata […]

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Alerts and Notices Product Notices

Product Notice 22-186: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-184 to 22-185: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-178 to 22-183: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-174 to 22-177: Additional Exchange Products Approved for Trading

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Effective Rule Filings Rule Filings

SR-MEMX-2022-10 Amendment No. 1: Proposal to Adopt Rules for MEMX Options

Date Filed: August 8, 2022 Description: Amendment No. 1 to the proposal to adopt rules to govern the trading of options on the Exchange. Amendment No. 1 supersedes the original proposal (SR-MEMX-2022-10) in its entirety.

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Alerts and Notices Product Notices

Product Notice 22-172 to 22-173: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-171: Additional Exchange Products Approved for Trading