Categories
Alerts and Notices Trader Alerts

Trader Alert 23-48: MEMX Options Specification Update to version 1.6A and Planned Release to the MODE Test Environment Wednesday 11/8/2023

On Monday, November 6, 2023, MEMX Options released new versions of its MEMOIR Common, MEMOIR TOP, MEMOIR Depth, and FIX Drop specifications, version 1.6A can be downloaded here using the “upcoming version” link. Release date for MODE is Wednesday November 8, 2023. Members that would like to upgrade to version 1.6A MEMO or FIX Drop in MODE should reach out to Market Ops. Production release date to follow, updates are listed below and in the specification Errata included in the download:

MEMOIR Common v1.6A

  • Renamed TradingSessionType value ‘Trading’ to ‘Open’.
  • Renamed TradingSessionStatus to UnderlierTradingSessionStatus
  • Renamed ‘InstrumentTradingStatus’ message to OptionsInstrumentStatus message.
  • Added new field ‘TradingSession’ to OptionsInstrumentStatus message.
  • Added new message UnderlierInstrumentStatus
  • Version 1.6 added Added new field ‘Underlier’ to TradingSessionStatus message

**If your Firm subscribes to MEMOIR market data, the above “added” fields and new message will be disseminated in MODE starting Wednesday 11/8/2023.**

MEMOIR Depth v1.6A and MEMOIR Top v1.6A

  • No Changes – Version was updated to 1.6a to be in line with MEMOIR Common v1.6A.

FIX DROP v1.6a

  • In NewOrderAcknowledge Message:
    Added new custom tag 67 ListSeqNo

Previous trader alert 23-44 which outlines other version 1.6 changes 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