Trader Alerts

Trader Alert 20-08: BCP/DR Testing Scheduled for October 24, 2020

In coordination with other market centers as part of the SIFMA organized industry test, and in support of Regulation System Compliance and Integrity requirements, MEMX will host a test of its secondary/disaster recovery facilities on Saturday, October 24th, 2020.  The scope for this weekend test will be a full feature test of all exchange functionality in order to ensure that MEMX is able to quickly relocate data center operations to Chicago, IL. 

Participation Details 

  • Sessions must be  requested  at least one week prior to the test.  
  • Members will be able to connect, submit orders, and receive market data during the test.   
  • Drop copies will be available to those Firms configured to receive them. 
  • For sessions please contact MEMX Market Operations 
    • 1-833-415-6677 
  • For questions regarding network connectivity in our Chicago facilities please contact MEMX Network Operations 
    • 1-833-415-8677 
  • Mandatory Participants were notified September 10, 2020
    • For questions about mandatory participation email
  • For any other questions regarding this test, please contact MEMX Market Operations 

Test schedule for Saturday, October 24, 2020 

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

Active Symbols 

All NMS Symbols will be available for the test, including all NMS test symbols: ATEST, ATEST.A, ATEST.B, ATEST.C, CBO, CBX, CTEST, IBO, IGZ, NTEST, ZAZZT, ZBZX, ZBZZT, ZCZZT, ZEXIT, ZJZZT, ZTEST, ZVV, ZVZZT, ZXIET, and ZXZZT  

MEMOIR Market Data 

Market data will be disseminated via the MEMOIR Feeds: Depth, Top, and Last Sale and MEMOIR TCP Replay Gap Fill and Snapshot will be available.  

MEMOIR Multicast Details 

DataMulticast AddressPort
MEMOIR Depth A233.142.18.65 19780
MEMOIR Depth B233.142.18.97 19780
MEMOIR Top A233.142.18.66 19796
MEMOIR Top B233.142.18.98 19796
MEMOIR Last Sale A233.142.18.67 19788
MEMOIR Last Sale B233.142.18.99 19788

Gap Fill

Data Target IPPortCredentials (user:password)
MEMOIR Depth74.119.49.1721060memoirdepthreplay:memoirdepthreplay
MEMOIR Top74.119.49.1921076memoirtopreplay:memoirtopreplay


Data Target IPPortCredentials (user:password)
MEMOIR Depth74.119.49.2022060memoirdepthsnapshot:memoirdepthsnapshot
MEMOIR Top74.119.49.2122076memoirtopsnapshot:memoirtopsnapshot