On Thursday, November 16, 2023, MEMX Options released a new version of its Risk Specification. Version 1.6 can be downloaded here using the “upcoming version” link. Release date for MODE and Production to follow, updates are listed below and in the specification Errata included in the download:
Risk Specification v1.6
- Extended all “Dollars” fields for Notional values to UINT64
- Made BreachID Optional on Clear Breach Requests and Breach Cleared / Breach Clear Rejected message to signal “clear all” behavior
- Added NoActiveBreaches reject code for a response to a “Clear All” breach request when there are no breaches
- Denoted the Risk Settings Query will now also return Passive Risk Threshold Notification messages to allow clients to retrieve their active breach percentages and Breach IDs (in the case of 100%)
- Added UnackedQuantity field to Active Risk Threshold State message
- Typo fixes
- Updated the Active Risk Threshold Change Request Message to make Underlier and/or EFID optional to signal “all Underliers” and/or “all EFIDs”respectively.
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