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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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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 22-17: Minor Update to MEMO FIX Version 1.9 and 1.10 Specifications

On May 27, 2022, MEMX released new minor versions of its MEMO FIX 1.9 and 1.10 specification to correct a typo. Version 1.9 Rev A and 1.10 Rev A include the following correction and can be downloaded  here: Section 6.3 Logon initially identified DefaultCstmApplVerID as Tag 1480, but should have been identified as 1408. Tag […]

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Alerts and Notices Trader Alerts Uncategorized

Trader Alert 22-16: Fee Schedule Update Effective June 1, 2022

Effective Wednesday, June 1, 2022, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC:  Adoption of a new Liquidity Provision Tier 1 (and renumbered the three existing Liquidity Provision Tiers to 2-4).  Addition of alternative criteria under Liquidity Provision Tier 2.  Modification of the required criteria and reduction […]

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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 […]