Category: Alerts and Notices

There are three requirements for Members to transition from pre-production to production:  Certification:  MEMX Options Service Desk can be found HERE.  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   

   Following a successful first test with participation from 11 firms sending orders and quotes, those quotes and trades being disseminated over Memoir and OPRA, mass cancel and risk functionality, drop copies, and OCC and CAT records being created, MEMX Options will host the second of three planned pre-launch production tests on Saturday, August 26, […]

Options Pre-Production Environment will be closed August 18, 2023, in preparation for Weekend Test #1 scheduled for Saturday, August 19, 2023. 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  

The Securities Information Processors (“SIPs”) will conduct a Market-Wide Circuit Breaker (“MWCB”) Level 1, Level 2 and Level 3 test on Saturday, September 9, 2023. In coordination with other market participants, MEMX will participate in the test and published a test script: MEMX 2023 Market-Wide Circuit Breaker Test Script. Certain members designated by MEMX are required to […]