What is the Canadian Overnight Repo Rate Average (CORRA)?

CORRA is widely used as a reference rate for financial instruments, including bonds, loans, and derivatives. Its transaction-based nature makes it a robust and accurate indicator of funding costs, particularly in short-term money markets.

How is CORRA Calculated?

CORRA is calculated daily using the following methodology:

• Data Collection: Transaction data is sourced from repo trades involving Government of Canada securities as collateral.
• Volume-Weighted Average: The rate is determined by calculating the volume-weighted average of eligible transactions conducted in the overnight market.
• Exclusions: Certain outlier transactions, such as those with extreme rates, may be excluded to maintain accuracy and integrity.

The resulting CORRA rate reflects actual market activity, ensuring it is a reliable benchmark for short-term funding costs.

Why is CORRA Important?

CORRA plays a crucial role in Canada’s financial ecosystem for several reasons:

• Benchmark for Financial Products: CORRA serves as a reference rate for pricing derivatives, bonds, and other financial instruments.
• Risk-Free Alternative: With its basis in secured overnight transactions, CORRA is considered a risk-free rate, providing a robust alternative to traditional interbank rates.
• LIBOR Transition: CORRA has gained prominence as a key replacement rate in the global shift away from LIBOR (London Interbank Offered Rate) replacing the incumbent Canadian Dollar Offered Rate (CDOR) in June 2024.

Applications

CORRA is utilised across various segments of the financial market, including:

Fixed-Income Instruments

It is used as a benchmark for Government of Canada bonds and other fixed-income products.

Derivatives Markets

CORRA underpins interest rate derivatives such as overnight index swaps (OIS), offering a risk-free benchmark for pricing and hedging.

Monetary Policy Implementation

The Bank of Canada monitors CORRA to assess liquidity and manage short-term interest rates.

Difference Between CORRA and CDOR

Historical Context and LIBOR Transition

CORRA’s importance has grown significantly in recent years, particularly in the context of the global transition away from LIBOR to more robust, transaction-based rates. Recognised as Canada’s primary risk-free benchmark rate, CORRA aligns with international best practices for benchmark reform. Its adoption has been encouraged across financial markets to ensure resilience, transparency, and consistency in pricing financial instruments.

The Bank of Canada has enhanced CORRA’s methodology to include a broader range of repo transactions, ensuring it reflects the true cost of overnight secured funding in the Canadian financial system.

Conclusion

CORRA is a cornerstone of Canada’s financial markets, providing a reliable and transparent benchmark for overnight funding costs. With its transaction-based methodology and focus on risk-free government securities, CORRA ensures accuracy and resilience, making it a critical reference rate for derivatives, fixed-income products, and monetary policy implementation.

As global markets continue to transition to risk-free benchmarks, CORRA’s relevance and adoption are set to increase.