Alerts and Notices Trader Alerts

Trader Alert 21-08: UAT on March 6, 2021

On Saturday March 6, 2021 MEMX will conduct a weekend UAT for Members to test the March 15 release in production environment.

Test Schedule for Saturday March 6, 2021:

Time (Eastern)Trading Status
8:30A Session Available
9:00A Pre-Market
9:30A Market
12:00P Post-Market
1:00PPost-Market Closed
1:15P Session Closed

What is Changing?

  1. MEMX will now be accepting an optional limit price on primary pegged orders.
  2. Various minor performance enhancements are being released.

Our Market Operations and Member Experience teams are here for any of your questions.  

MEMX Market Operations


MEMX Member Experience