Further to Trading Notice 2026-01, Tradelogiq Markets Inc. is advising customers of additional changes being made to the Tradelogiq FIX specifications.  The changes are summarized below:

• Subscribers may now choose, at a session level, to receive execution reports for intentional cross types as separate single-sided messages (one for each side), in accordance with the “Execution Reports” specification. Current system defaults will remain unchanged: crosses will continue to receive a single execution report under the existing “Execution Reports – Crosses” specification. (Note: Intentional crosses are only available on Omega ATS.)
• Tag 100 (ExDestination), used to specify order routing via Tradelogiq’s Smart Order Router (“SOR”), will no longer be accepted and SOR service will be discontinued. Messages sent with this tag will be rejected.

No changes will be required by Subscribers to continue to enter orders on Omega ATS and Lynx Periodic Match post-implementation unless the Subscriber wishes to opt-in to receiving single-sided cross execution reports for one or more sessions, or if currently using the Tradelogiq SOR.

Subscribers wishing to take advantage of the new option for cross execution reports will be required to perform certification testing of the new feature in our General Testing Environment (“GTE”).

Updated FIX Specifications (v. 1.0.5.9) are now available and can be found on our website.

Implementation dates for the changes announced in this notice and in Trading Notice 2026-01 are set out below.