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Alerts and Notices Trader Alerts Uncategorized

Trader Alert 23-01: Holiday Reminder – Closed January 2,2023

MEMX will be closed Monday, January 2, 2023, in observance of New Year’s Day.   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 Uncategorized

Trader Alert 22-34: Holiday Reminder – Closed December 26, 2022

MEMX will be closed Monday, December 26, 2022, in observance of Christmas Day.   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 Uncategorized

Trader Alert 22-31: MWCB Testing Opportunity – December 3, 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, December 3, 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 Product Notices Uncategorized

Product Notice 22-283 to 22-286: Additional Exchange Products Approved for Trading

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Alerts and Notices Trader Alerts Uncategorized

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 Regulatory Notices Uncategorized

Regulatory Notice 22-06: Nominations for Member Representative Director 

Date: July 6, 2022 Description: Notice of Annual Meeting and Nominees for Member Representative Director Positions on the Exchange’s Board of Directors

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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 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.