October 29, 2025
TMX IP Notice 2025-106
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 P3 (symbols M-S) and CDF-TSX P4 (symbols T-Z) at the Toronto (TCF) location and CDF-TSX P4 (symbols T-Z) at the Markham location.
As a result, CDF-TSX P3 (M-S) and CDF-TSX P4 (T-Z) data has been removed from the CBBO and CBBO-P from the TCF location and CDF-TSX P4 (T-Z) from the MCC location due to permanently missed messages.
All other feeds from the MCC and TCF locations are operating normally.
Feeds Affected: CDF-TSX P3 (symbols M-S), CDF-TSX P4 (symbols T-Z), CBBO, CBBO-P, CDB, CLS
Site(s) Impacted: MCC, TCF
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