The Canadian Dollar Offered Rate (CDOR) ceased publication on June 28, 2024, after the OSFI-led Canadian Alternative Reference Rate Working Group (CARR) recommended retirement in favour of the Canadian Overnight Repo Rate Average (CORRA). The transition mirrors the global retirement of LIBOR in 2021-2023 and was driven by the same structural concerns: CDOR was a forward-looking term rate derived from a small number of contributor banker's acceptance submissions, while CORRA is a transaction-based overnight rate computed from collateralized repo activity, which is far more robust to manipulation and far more representative of actual money-market funding conditions.
For CRE borrowers and lenders, the mechanical change is significant. CDOR-referenced loans typically priced off a 1-month or 3-month forward-looking CDOR rate plus a spread.
CORRA is an overnight rate, so term CORRA equivalents are constructed either by compounding daily CORRA observations in arrears over the interest period or by referencing the Term CORRA rate published by Refinitiv Benchmark Services UK Limited for tenors of 1-month and 3-month maturities. Compounded-in-arrears mechanics introduce operational complexity because the interest payable on a given period is not known until the end of that period, which complicates cash-flow forecasting, hedging, and tax accrual.
The transition mechanics for existing loans rest on the fallback language in each loan agreement. Loans originated after the CARR-recommended fallback language was published include a permanent cessation trigger plus an early opt-in trigger, the use of a CORRA reference rate, and a credit spread adjustment (the ISDA-published CSA at the cessation announcement date) added to the new reference rate to compensate for the historical basis differential between CDOR and CORRA.
Loans originated under older legacy language faced amendment or transition to a new rate by mutual consent, and a small portion required a tough legacy solution where CARR-led market-wide remediation worked across affected contracts. Practitioners should now verify that every floating-rate Canadian loan in their portfolio references CORRA (Term CORRA or compounded CORRA), uses a credit spread adjustment that aligns with ISDA's published values, and incorporates contemporary CORRA fallback language for any future benchmark transition.
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