We are publishing FIX and Market Data specifications in connection with upcoming changes to CIRO Universal Market Integrity Rules (“UMIR”) pertaining to Net Asset Value (“NAV”) orders and intentional crosses marked as jitney on one side.
FIX and Market Data specifications for crosses entered and executed on Omega ATS are being updated to reflect the availability of a new NAV Cross Type, effective January 13, 2026. No changes to specifications are necessary to accommodate intentional crosses marked as jitney on one side.
The changes are expected to be available for testing in our General Test Environment (“GTE”) in mid-November. Notice will be provided once the date for GTE availability is confirmed.
Updated documentation has been posted to our website and can be downloaded via the following links:
Please direct any questions regarding the updated specifications or testing within GTE to [email protected].
