Why hedge funds could be making a bond market shock more likely
TITLE: Why hedge funds could be making a bond market shock more likely
Sarah Breeden, the Bank of England deputy governor for financial stability, warned that the expanding role of hedge funds in international bond markets has increased the probability of a significant market shock. Speaking to CNBC on Thursday, Breeden explained that the current composition of bond market participants, combined with their heavy reliance on leverage, elevates the danger that localized volatility could transform into widespread financial instability. Breeden, who also serves on the Monetary Policy Committee, provided these insights during the IMF-World Bank annual meetings held in Bangkok, Thailand.
Shifting Dynamics in Government Bond Markets
Breeden told CNBC interviewer Sri Jegarajah that the profile of investors in major government bond markets has undergone a fundamental transformation over the past few years. She noted that traditional real money investors, such as pension funds and insurance companies, no longer dominate these markets as they once did. Instead, international hedge funds have taken a more prominent role. Breeden characterized these funds as being highly sensitive to price changes and heavily leveraged, which she believes makes the transmission of shocks between different markets more likely than in previous eras.
Global Assets and Financial Stability Risks
The International Monetary Fund supported this perspective in its Global Financial Stability Report released on Tuesday. According to the IMF, hedge fund gross assets have climbed to approximately $13 trillion, making these entities a critical component of the modern investment environment. While the IMF acknowledged that hedge funds contribute to market efficiency and liquidity, the organization also cautioned that their use of leverage and tendency to engage in crowded trades could intensify market stress during periods of high volatility. This instability could potentially impact broader financial systems, including the prime brokerage departments of major banks.
THE Impact of Leveraged Basis Trades
Breeden specifically highlighted that the bond markets themselves are the primary source of these potential shocks. Regulators have increased their oversight of hedge fund activities this year, particularly regarding basis trades. In these transactions, funds take long positions in cash Treasurys while simultaneously shorting futures contracts to exploit small price differences. To make these small margins profitable, funds often utilize significant leverage. Data from the U.S. Office of Financial Research, published on August 19, revealed that hedge funds controlled a record 7% of the $30 trillion Treasury market by the conclusion of 2025.
Sovereign Debt Yields Reach Historic Highs
This increased scrutiny follows a period of intense selling in the sovereign debt market. Recently, yields on 10-year and 30-year U.S. Treasurys climbed to their highest points since 2002. Similarly, the United Kingdom saw yields on its 10-year government bonds, known as gilts, reach levels not seen in several decades. Breeden emphasized that because these leveraged international funds are now so integrated into the system, the risk of a spillover from one sector to another remains higher than it was in the past.
Source: cnbc.com · 2026-10-18