Hedge funds have become a dominant force in Canada’s government bond market, improving liquidity but also creating potential financial stability risks due to the scale and concentration of their activity, according to a report by them Globe & Mail citing new research from the Bank of Canada.
The central bank estimates that hedge funds now account for 40% to 50% of purchases at Government of Canada (GoC) bond auctions, a dramatic increase from less than 5% fifteen years ago. Their growing footprint comes as federal debt issuance has surged since the pandemic, making hedge funds an increasingly important source of demand.
However, the research highlights that hedge fund activity is highly concentrated, with a small number of firms responsible for the majority of trading. For some major strategies involving billions of dollars, around 70% of trading is conducted by just five funds, raising concerns about the market’s ability to absorb sudden position unwinds.
“Hedge fund concentration suggests that if one or two firms were to rapidly unwind their positions, it could lead to a substantial and sudden spike in bond sales,” wrote Bank of Canada researchers Andreas Uthemann and Adrian Walton. They added that common exposures across strategies could amplify stress during periods of market volatility.
While hedge fund participation brings benefits — including deeper liquidity and lower borrowing costs for the federal government — the central bank cautioned that these investors differ materially from traditional bondholders. Hedge funds typically finance positions through short-term repo markets and are more likely to reduce exposure rapidly during risk-off episodes.
The report also seeks to distinguish between different hedge fund strategies, many of which involve relative-value trades, simultaneously buying and selling different bonds. Understanding these strategies is critical, the authors noted, because each carries distinct risks tied to liquidity conditions, interest rates and credit developments.
The Bank of Canada’s concerns echo warnings from other regulators. The Bank of England has previously highlighted heavy hedge fund concentration in core markets, noting that a small number of firms account for the vast majority of repo borrowing.
