Key Takeaways
- • The Financial Stability Board is preparing a public consultation on how to gather data on hedge funds' leveraged positions in government bond markets, with the consultation expected in the coming weeks according to people familiar with the discussions, as reported by Bloomberg.
- • The FSB estimated earlier this year that hedge fund cash borrowing in repo markets has reached almost $3 trillion, or about 25% of hedge fund assets.
- • The FSB's Non-Bank Data Task Force, chaired by Bank of England Governor Andrew Bailey, missed a mid-2026 target for a report on data challenges around leveraged sovereign bond strategies, pushing the issue into 2027 if a standard 60-day consultation runs.
- • Regulators' core concern is visibility: leverage is often built through off-balance-sheet structures in places such as the Cayman Islands and spread across several prime brokers, so no single bank or supervisor sees a fund's full exposure.
- • Managers of relative-value fixed income books face a process rather than an immediate rule, but consistent cross-border leverage metrics are likely to inform future reporting, and firms with large Treasury, gilt and Bund basis positions should expect closer scrutiny from prime brokers and regulators.
Summary
The Financial Stability Board (FSB) is preparing to launch a public consultation on how to collect data on hedge funds' leveraged bets in government bond markets, according to Bloomberg. Early efforts were slowed by inconsistent definitions and restrictions on sharing information across borders. The consultation is expected in the coming weeks, according to people familiar with the discussions.
The work is led by the FSB's Non-Bank Data Task Force, chaired by Bank of England Governor Andrew Bailey. A work plan published in July 2025 targeted a report on data challenges around leveraged sovereign bond strategies by mid-2026. That deadline has passed. Because FSB consultations typically run for 60 days, the issue would extend into 2027. An FSB spokesperson told Bloomberg that the work is challenging because of data availability and quality, as well as legal constraints on new data collection and on sharing information across jurisdictions.
Regulators are focused on the basis trade, in which funds buy cash government bonds and sell futures, often financed with substantial repo borrowing. The FSB estimated earlier this year that hedge fund cash borrowing in repo markets has reached almost $3 trillion, or about 25% of their assets. Authorities' central concern is visibility. Leverage is frequently built through off-balance-sheet structures in jurisdictions such as the Cayman Islands and spread across several prime brokers, so no single bank or supervisor necessarily sees a fund's full exposure. A sudden unwind could force sales of sovereign debt during a period of market stress.
For managers running relative-value fixed income books, the consultation marks the start of a process rather than an immediate rule. However, the direction is clear: consistent, cross-border leverage metrics would likely feed into future reporting obligations. Firms with large Treasury, gilt and Bund basis positions should expect closer questions from prime brokers and regulators alike.
The work is led by the FSB's Non-Bank Data Task Force, chaired by Bank of England Governor Andrew Bailey. A work plan published in July 2025 targeted a report on data challenges around leveraged sovereign bond strategies by mid-2026. That deadline has passed. Because FSB consultations typically run for 60 days, the issue would extend into 2027. An FSB spokesperson told Bloomberg that the work is challenging because of data availability and quality, as well as legal constraints on new data collection and on sharing information across jurisdictions.
Regulators are focused on the basis trade, in which funds buy cash government bonds and sell futures, often financed with substantial repo borrowing. The FSB estimated earlier this year that hedge fund cash borrowing in repo markets has reached almost $3 trillion, or about 25% of their assets. Authorities' central concern is visibility. Leverage is frequently built through off-balance-sheet structures in jurisdictions such as the Cayman Islands and spread across several prime brokers, so no single bank or supervisor necessarily sees a fund's full exposure. A sudden unwind could force sales of sovereign debt during a period of market stress.
For managers running relative-value fixed income books, the consultation marks the start of a process rather than an immediate rule. However, the direction is clear: consistent, cross-border leverage metrics would likely feed into future reporting obligations. Firms with large Treasury, gilt and Bund basis positions should expect closer questions from prime brokers and regulators alike.
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