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Alerts and Notices Trader Alerts

Trader Alert 23-16: Fee Schedule Update Effective June 1, 2023

Effective Thursday, June 1, 2023, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Modify the required criteria under Liquidity Provision Tier 4. Adopt a new Liquidity Provision Tier 6. Increase the fee and change the required criteria under Liquidity Removal Tier 1. Eliminate Liquidity Removal Tier 2. […]

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Alerts and Notices Trader Alerts Uncategorized

Trader Alert 23-16: Holiday Reminder – Closed May 29, 2023

MEMX will be closed Monday, May 29, 2023, in observance of Memorial Day. Normal trading will resume on Tuesday, May 30, 2023.   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

Trader Alert 23-15: Fee Schedule Update Effective May 1, 2023

Effective Monday, May 1, 2023, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Modify the required criteria under Liquidity Provision Tiers 2, 4, and 5. Modify the required criteria under DLI Tier 2. Changes are reflected in bold text below. Liquidity Provision Tiers Tier Rebate Per Share […]

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Alerts and Notices Trader Alerts

Trader Alert 23-14: MEMX Regulation SCI Disaster Recovery Testing

On February 8, 2023, MEMX published Regulatory Notice 23-01: Mandatory Participation in 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 14, 2023.  The scope […]

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Alerts and Notices Trader Alerts

Trader Alert 23-13: Fee Schedule Update Effective April 3, 2023

Effective Monday, April 3, 2023, MEMX will be implementing the following change to transaction fees, subject to filing with the SEC: Remove the alternative criteria under NBBO Setter/Joiner Tier 1.  The change is reflected in bold text below.  NBBO Setter/Joiner Tiers Tier Additive Rebate Per Share* Required Criteria Tier 1 $(0.0004) Member has (1) an […]

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Alerts and Notices Trader Alerts

Trader Alert 23-12: MWCB Testing Opportunity – April 1, 2023

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, April 1, 2023. In coordination with other market participants, MEMX will participate in the test and published a test script: MEMX 2023 Market-Wide Circuit Breaker Test Script. Certain members designated by MEMX […]

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Alerts and Notices Trader Alerts Uncategorized

Trader Alert 23-11: Holiday Reminder – Closed April 7, 2023

MEMX will be closed Friday, April 7, 2023, in observance of Good Friday. Normal trading will resume on Monday April 10, 2023. MEMX Market Hours and Holiday Schedule Please contact Market Operations with any questions. MEMX Market Operations mops@memx.com 1-833-415-6677  

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Alerts and Notices Trader Alerts

Trader Alert 23-10: Fee Schedule Update Effective March 1, 2023

Effective Wednesday, March 1, 2023, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Reduce the base rebates for executions of orders (including Retail Orders) that add displayed volume in securities ≥$1. Reduce the base rebates for executions of orders (including midpoint peg orders and orders subject to […]

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Alerts and Notices Trader Alerts

Trader Alert 23-09: MEMX will no longer support version 1.9 MEMO and Fix Drop protocols as of March 1, 2023

On March 1, 2023, all 1.9 versions of the MEMX specs will be deprecated: MEMO SBE v1.9 MEMO FIX v1.9 FIX DROP v1.9 Our Market Operations team is here for any of your questions.    MEMX Market Operations   mops@memx.com   1-833-415-6677   

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Alerts and Notices Trader Alerts

Trader Alert 23-08: Regulatory Transaction Fee Adjustment Effective February 27, 2023

This notice is being issued to inform you of the recently published Securities and Exchange Commission (SEC) order described in Fee Rate Advisory #2 for Fiscal Year 2023, in which the SEC announced the Section 31 transaction fee rate applicable to securities transactions on the exchanges and over-the-counter markets will be $8.00 per million dollars for covered sales occurring on or after […]