On Friday, March 1, 2024, MEMX Options released a new version of its MEMO SBE and Risk Specifications. Version 1.7 can be found here using the “upcoming version” link. Release dates for the MEMX Options Development Environment (MODE) and Production to follow. Updates are listed below and in the specification Errata included in the download:
MEMO SBE v1.7
- Added Reject codes for new Clear all messages:
- 7 – MissingEFID
- 8 – InvalidEFID
- 9 – MissingUnderlier
- 10 – InvalidUnderlier
- Reworded MassCancelClearLockoutRequest description and made LockoutID required
- Added new message MassCancelBulkClearAllLockoutsReqeust
- Added TransactTime field to MassCancelDone
- Added TransactTime field to MassCancelClearLockoutDone
- Added new message MassCancelBulkClearLockoutRejected
- Added new message MassCancelBulkClearLockoutAccepted
- Made LockoutId required on MassCancelClearLockoutRejected
- Made LockoutId required on MassCancelClearLocktoutAccepted
Risk Control v1.7
- Added Message: Cross Port Clear All Breaches Request
- Added Message: Cross Port Clear All Breaches Request by EFID or Underlier
- Added Message: Cross Port Active Risk Acknowledge All Request
- Added Message: Single Order Allow Market Orders
- Added Message: Single Order Restricted Underlier
- Added “?” Underlier to risk rule definition messages
- Updated Cross Port Active Risk Threshold Change Request to use “*” Underlier and EFID instead of NULL
- Added AllowMarketOrders and RestrictedUnderlier eums to RuleType
- Added MissingAllowMarketOrders, InvalidAllowMarketOrders, MissingRestricted, InvalidRestricted enums to RiskRejectReason
- Make BreachID mandatory in Cross Port Clear Breach Request
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