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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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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.

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Alerts and Notices Product Notices

Product Notice 22-132: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-131: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-129 to 22-130: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-128: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-126 to 22-127: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 22-122 to 22-125: Additional Exchange Products Approved for Trading

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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