November 6, 2025
TMX IP Notice 2025-110

TMX Group

TMX Information Processor

Technical Issue Impacting TMX IP CDF-TSX feeds via both MCC and TCF

Attention TMX Information Processor Clients

Please be aware that TMX IP experienced a technical issue affecting CDF-TSX (symbols A-L) at the Toronto (TCF) location and CDF-TSX (symbols E-L) at the Markham location.

As a result, CDF-TSX (A-L) in Toronto and CDF-TSX (E-L) data in Markham has been removed from the CBBO and CBBO-P due to permanently missed messages.

All other feeds from the MCC and TCF locations are operating normally.

Feeds Affected: CDF-TSX (symbols A-L) TCF, CDF-TSX (symbols E-L) MCC, CBBO, CBBO-P, CDB, CLS

Site(s) Impacted: MCC, TCF