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Alerts and Notices Trader Alerts

Trader Alert 21-22: Updated MEMO FIX and MEMO SBE Specifications July 26, 2021

On July 26, 2021, MEMX has released new versions of its MEMO FIX and MEMO SBE specifications. The new 1.6 versions can be downloaded here. Please note, this update is not a trading platform update/change, but rather a specification update to include details on Pending New Execution report messages and Order Reject Reason Codes as […]

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Alerts and Notices Trader Alerts

Trader Alert 21-21: UAT on July 17, 2021

On Saturday, July 17, 2021, MEMX is planing to make the trading platform available for a UAT for Members to test in the production environment. Test Schedule for Saturday, July 17, 2021: Time (Eastern) Trading Status 8:30A  Session Available 9:00A  Pre-Market 9:30A  Market 12:00P  Post-Market 1:00P Post-Market Closed 1:15P  Session Closed Our Market Operations and Member Experience […]

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Alerts and Notices Trader Alerts

Trader Alert 21-20: Holiday Reminder – Closed July 5, 2021

MEMX will be closed Monday, July 5, 2021 in observance of Independence Day. Normal trading will resume on Tuesday, July 6, 2021. 

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Alerts and Notices Trader Alerts

Trader Alert 21-19: UAT on Saturday June 5, 2021

On Saturday, June 5, 2021, MEMX is planing to make the trading platform available for a UAT for Members to test in the production environment. Test Schedule for Saturday, June 5, 2021: Time (Eastern) Trading Status 8:30A  Session Available 9:00A  Pre-Market 9:30A  Market 12:00P  Post-Market 1:00P Post-Market Closed 1:15P  Session Closed Our Market Operations and Member Experience […]

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Alerts and Notices Trader Alerts

Trader Alert 21-18: Fee Schedule Update Effective June 1, 2021

Effective Tuesday, June 1, 2021, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC:   Adoption of the Displayed Liquidity Incentive rebate, as described in Trader Alert 21-17.  Adoption of a liquidity provision tier. Increase of the rebate for Midpoint Peg orders that add volume.  Increase of the fee to remove volume. Reduction […]

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Alerts and Notices Trader Alerts

Trader Alert 21-17: Introducing the MEMX Displayed Liquidity Incentive Program

MEMX is pleased to announce our new Displayed Liquidity Incentive program (DLI), a flexible program that allows  participating members to receive a superior rebate when they add displayed liquidity to the exchange.  Program features  A generous incentive level  Ease of participation and flexibility in how quoting requirements are met  Who can participate  Flexible eligibility—any MEMX member can participate with no […]

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Alerts and Notices Trader Alerts

Trader Alert 21-16: Ability to opt out of Pending New Messages June 01, 2021

MEMX is adding new functionality to allow Members to opt out of Pending New execution reports on both FIX and SBE order entry sessions effective June 01, 2021. The Pending New execution report is a response to a NewOrderSingle message indicating the request has been received by the exchange and is in the process of […]

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Alerts and Notices Trader Alerts

Trader Alert 21-14: New Trading Platform Version on May 10, 2021 (Updated)

MEMX is releasing a new version of the trading platform Monday, May 10, 2021. This release contains the following changes with regard to order handling of resting displayed odd lot orders and resting hidden orders, as described below. These changes are currently available for testing in our MDE environment. Resting Displayed Odd Lot Orders – […]

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Alerts and Notices Trader Alerts

Trader Alert 21-12: UAT on April 10, 2021

On Saturday, April 10, 2021, MEMX is planing to make the trading platform available for a UAT for Members to test in the production environment. Test Schedule for Saturday, April 10, 2021: Time (Eastern) Trading Status 8:30A  Session Available 9:00A  Pre-Market 9:30A  Market 12:00P  Post-Market 1:00P Post-Market Closed 1:15P  Session Closed Our Market Operations and Member Experience […]

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Alerts and Notices Trader Alerts

Trader Alert 21-10: New Trading Platform Version on March 22, 2021

MEMX is releasing a new version of the trading platform Monday, March 22, 2021. This release contains the following changes:  MEMX will now be accepting an optional limit price on primary pegged orders. Various minor performance enhancements are being released. This release is currently running in the MDE environment and is available throughout the week […]