On Friday, June 30, 2023, MEMX Options released new versions of all its specifications. Version 1.3 can be downloaded here. The change summary is listed below and all details are outlined in the Errata included in the download.
- Added additional cancel and reject reason codes.
- Removed the Party Group field from several message types.
Additional Resources:
- MEMX Options FAQ
- MEMOIR Depth and Top Multicast Addresses
Our Market Operations and Member Experience teams are here for any of your questions.
MEMX Market Operations
1-833-415-6677
MEMX Member Experience
1-833-415-6369