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Alerts and Notices Trader Alerts

Trader Alert 22-15: Holiday Reminder – Closed May 30, 2022

MEMX will be closed Monday, May 30, 2022, in observance of Memorial Day. Normal trading will resume on Tuesday, May 31, 2022.   MEMX Market Holiday Hours and Holiday Schedule Our Market Operations and Member Experience teams are here for any of your questions.   MEMX Market Operations mops@memx.com 1-833-415-6677   MEMX Member Experience memberx@memx.com 1-833-415-6369 

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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 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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Alerts and Notices Trader Alerts

Trader Alert 22-09: Updated Market Data Policies Effective April 1, 2022 

As previously announced on February 9, 2022, MEMX will implement fees for its market data feeds (MEMOIR Depth, MEMOIR Top, and MEMOIR Last Sale) effective April 1, 2022.  In connection with such fees, MEMX is also implementing certain monthly reporting requirements for market data customers to report their usage, with the first month’s reporting (covering usage in […]

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Alerts and Notices Trader Alerts

TraderAlert 22-08: Updated Fix Drop, MEMO FIX and MEMO SBE Specifications as well as Specification Version validations for March 28, 2022

On March 23, 2022, MEMX released new versions of its MEMO FIX, MEMO SBE, and Fix Drop specifications. Version 1.9 of MEMO and FIX Drop can be found here using the “Upcoming version” link. This specification update includes addition of a new LnkID and ExtendedRestatementReason fields as well as version validations for MEMO and Fix Drop. Note: […]

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Alerts and Notices Trader Alerts

Trader Alert 22-07: Member testing available on March 26, 2022

On Saturday, March 26, 2022, MEMX is participating in the UTP and CTA failover testing to the secondary data centers as well as Market-Wide Circuit Breaker testing. The trading platform will be available for Member testing. Test Schedule for Saturday, March 26, 2022: Time (Eastern) Trading Status 8:00A  Session Available 8:30A  Pre-Market 9:30A  Market 12:00P  Post-Market 1:00P […]

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Alerts and Notices Trader Alerts

Trader Alert 22-06: Fee Schedule Update Effective March 1, 2022

Effective Tuesday, March 1, 2022, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Adopt a new NBBO Setter Tier, which provides an additive rebate of 0.0003 per share for executions of added displayed volume (other than Retail Orders) in securities ≥$1 that set the NBBO for members […]

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Alerts and Notices Trader Alerts

Trader Alert 22-05: Updated MEMO FIX and MEMO SBE Specifications February 16, 2022

On February 16, 2022, MEMX has released new versions of its MEMO FIX and MEMO SBE specifications. The new 1.8 versions can be downloaded here using the “Upcoming version” link. This specification update includes a new Cancel Reason and new Reject Reasons as listed below. Note: the MEMX MDE test environment already has this update and the […]

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Alerts and Notices Trader Alerts

Trader Alert 22-03: Market Data Fees Effective April 1, 2022

Effective Friday, April 1, 2022, MEMX will be implementing the following fees for market data products as set forth below, subject to filing with the SEC.     Delivery MEMOIR DEPTH MEMOIR TOP MEMOIR LAST SALE Internal Distributor  $1,500  $750  $500  External Distributor  $2,500  $2,000  $2,000  Non-Display Usage not by Trading Platforms  $1,500  N/A N/A Non-Display Usage […]

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Alerts and Notices Trader Alerts

Trader Alert 22-02: New Strict Order Entry Validations Effective Monday, February 28 and UAT testing on Saturday, February 26, 2022

On Monday, February 28, 2022, MEMX plans to make the following updates to order entry validations. These updates are currently available in the MDE test facility and will be available in production during the Saturday, February 26, 2022, UAT. If a request has one or more reserve order tags set then all the required reserve order tags must […]