September 30, 2026
TMX IP Notice 2026-101
TMX Information Processor
UPDATE: TMX IP issue impacting CIX data in CBBO-A1 and A2 feeds via MCC and TCF site
Attention TMX Information Processor Clients
Please be advised that the TMX IP team has tested a permanent solution to address the root cause affecting CIX data in the CBBO-A1 and CBBO-A2 feeds from both Markham (MCC) and Toronto (TCF).
To minimize the risk, the TMX IP team has scheduled to implement the fix at the TCF site tonight, following market close, effective tomorrow, October 1, 2026. Furthermore, the fix is expected to be implemented at the MCC site Thursday evening after market close effective for Friday, October 2, 2026.
As a result, the CIX quotes will be included from the TCF site, and remain excluded from the MCC CBBO-A1 and CBBO-A2 tomorrow.
TMX IP team will continue to provide updates.
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