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605 Reports

August 2022

Categories
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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605 Reports

July 2022

Categories
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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605 Reports

June 2022

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605 Reports

May 2022

Categories
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 […]

Categories
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 

Categories
Alerts and Notices Trader Alerts

Trader Alert 22-18: Holiday Reminder – Closed June 20, 2022

MEMX will be closed Monday, June 20, 2022, in observance of Juneteenth National Independence Day. Normal trading will resume on Tuesday, June 21, 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 

Categories
605 Reports

April 2022

MEMX has updated the order type code computation method for At-the-Quote Limit Orders and Marketable Limit Orders as of May 2022, after this report was published.