Tradelogiq Markets Inc. is advising customers of changes being made to FIX and market data specifications. The changes are summarized below:

FIX specifications

• A note has been added to indicate a new option to set a different default value to be applied at the order entry session level for Tag 6761 (Anonymous). Subscribers can continue to specify the value to be applied at an order level. Subscribers can now request a default value be applied to orders at the session level that differs from current system defaults by contacting Tradelogiq Operations. (Current system defaults remain unchanged – orders are defaulted to be anonymous on Omega ATS; orders are defaulted to be attributed on Lynx Periodic Match.)
• Field length limitations for certain FIX tags have also been more clearly identified. Field length limitations remain unchanged or will become longer.

Market data specifications

• Length of “Stock” field (denotes symbol) in “Stock Directory” and “Extended Stock Directory” messages will increase to 24 characters from 10.

No changes will be required by Subscribers to continue to enter orders on Omega ATS and Lynx Periodic Match post-implementation.

Changes will need to be made by direct consumers of our market data feeds to accommodate the longer “Stock Directory” and “Extended Stock Directory” message lengths.

Implementation dates and links to updated specifications can be found below. The updated specifications can also be found on our website.