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Alerts and Notices Trader Alerts

Trader Alert 22-14: Fee Schedule Update Effective May 2, 2022

Effective Monday, May 2, 2022, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC:  Adopt a new Step-Up Additive Rebate incentive, which provides an additive rebate of 0.0002 per share for executions of added displayed volume in securities ≥$1 (other than orders that establish the NBBO for Members […]

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Alerts and Notices Product Notices

Product Notice 22-107 to 22-109: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-104 to 22-106: Additional Exchange Products Approved for Trading

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Alerts and Notices Trader Alerts

Trader Alert 22-13: Updated MEMO FIX, MEMO SBE, and Fix Drop Specifications

On April 22, 2022, MEMX released a new version of its MEMO FIX, MEMO SBE, and Fix Drop specifications. Version 1.10 of MEMO and Fix Drop can be found here using the “Upcoming version” link. Please see the Specification Errata document included in the download for details. Note: the MEMX MDE test environment already has this update; […]

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605 Reports

March 2022

MEMX has updated the order type code computation method for At-the-Quote Limit Orders and Marketable Limit Orders as of May 2022, after this report was published.

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Alerts and Notices Product Notices

Product Notice 22-101 to 22-103: Additional Exchange Products Approved for Trading

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Alerts and Notices Regulatory Notices Uncategorized

Regulatory Notice 22-04: Mandatory Participation in Market-Wide Circuit Breaker Testing

Date: April 21, 2022 Description:  Certain members designated by MEMX are now required to participate in at least one industry-wide Market-Wide Circuit Breaker test each year.

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Alerts and Notices Product Notices

Product Notice 22-97 to 22-100: Additional Exchange Products Approved for Trading

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Effective Rule Filings Rule Filings

SR-MEMX-2022-10: Proposal to Adopt Rules for MEMX Options

Date Filed: April 21, 2022 Description: Proposal to adopt rules to govern the trading of options on the Exchange.

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Alerts and Notices Product Notices

Product Notice 22-95 to 22-96: Additional Exchange Products Approved for Trading