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Alerts and Notices Trader Alerts

Trader Alert 22-28: Fee Schedule Update Effective October 3, 2022

Effective Monday, October 3, 2022, MEMX will be implementing the following change to transaction fees, subject to filing with the SEC: Modify the required criteria under the Step-Up Additive Rebate. Changes are reflected in bold text below. Step-Up Additive Rebate Tier Additive Rebate Per Share* Required Criteria Tier 1 $(0.0002) Member has (1) an ADAV […]

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Alerts and Notices Trader Alerts

Trader Alert 22-27: Fee Schedule Update Effective September 1, 2022

Effective Thursday, September 1, 2022, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Adoption of a new Fee Code and reduced fee for Midpoint Peg orders with a Time-in-Force instruction of IOC or FOK that remove volume from the MEMX Book upon entry. Modify the required criteria […]

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Trader Alert 22-26: MWCB Testing Opportunity – September 10, 2022

The Securities Information Processors (“SIPs”) will conduct Market-Wide Circuit Breaker (“MWCB”) tests breaching Level 1, 2, and 3 on Saturday, September 10, 2022. In coordination with other market participants, MEMX will participate in the test and published a test script: MEMX 2022 Market-Wide Circuit Breaker Test Script. Certain members designated by MEMX are required to […]

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Alerts and Notices Trader Alerts Uncategorized

Trader Alert 22-25: Holiday Reminder – Closed September 5, 2022

MEMX will be closed Monday, September 5, 2022, in observance of Labor Day. Normal trading will resume on Tuesday, September 6, 2022. MEMX Market 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 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 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 Trader Alerts

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

Effective Monday, August 1, 2022, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Modified the required criteria under Step-Up Additive Rebate. Modified the required criteria under Liquidity Removal Tier 1. Increased the rebate for all added displayed volume in securities <$1. Changes are reflected in bold text […]

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Alerts and Notices Trader Alerts

Trader Alert 22-21: Fee Schedule Update Effective July 1, 2022

Effective Friday, July 1, 2022, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC:  Reduced the rebate for added displayed volume in securities ≥$1 and added an alternative criteria under Liquidity Provision Tier 1.  Modified the required criteria under Liquidity Provision Tier 2.  Reduced the rebate for added […]

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Alerts and Notices Trader Alerts

Trader Alert 22-20: MWCB Testing Opportunity – July 23, 2022

The Securities Information Processors (“SIPs”) will conduct data center failover testing as well as Market-Wide Circuit Breaker (“MWCB”) breach Level 1 and 2 on Saturday, July 23, 2022. In coordination with other market participants, MEMX will participate in the test and published a test script: MEMX 2022 Market-Wide Circuit Breaker Test Script. Certain members designated […]

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Alerts and Notices Trader Alerts

Trader Alert 22-19: Holiday Reminder – Closed July 4, 2022

MEMX will be closed Monday, July 4, 2022, in observance of Independence Day. Normal trading will resume on Tuesday, July 5, 2022. MEMX Market 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