On Wednesday, August 23, 2023, MEMX options released new versions of its specifications pursuant to the first UAT to ensure the specifications are in line with the platform. Version 1.4 can be downloaded here. The change summary is outlined in the Errata included in the download. Please reach out to mops@memx.com if you would like your MEMO or FIX DROP accounts to be configured for version 1.4 (If your Firm would like to use version 1.4 for this weekends UAT, requests need to be made prior to 2:30 PM EST on Thursday, August 24, 2023.)
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