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BoE warns risks are converging as gilt-market leverage stays elevated

The Bank of England’s Financial Policy Committee says interconnected financial vulnerabilities are more likely to crystallise together as sovereign yields tighten conditions, gilt-market leverage remains elevated and AI-related financing broadens capital-market exposures.

The FPC’s September Record, published on 30 September, says the risk outlook has worsened since July. It links a more protracted Middle East energy shock to sovereign yields at levels not seen since 2008 in several advanced economies, while judging that the financial system has remained resilient so far.

Hedge-fund leverage in the gilt market was stable but remained elevated. The Committee said this increases the importance of measures to improve gilt repo resilience. It will proceed with proposed leverage-ratio reforms and expects the Bank to consult in early 2027, while continuing to monitor market leverage.

FMI WORLD analysis: The infrastructure signal is the interaction between bank balance-sheet capacity, leveraged gilt positions and repo-market resilience. Expanding leverage capacity can support market intermediation, but it can also deepen prime-brokerage and repo exposures unless market-based safeguards absorb stress without destabilising core sterling markets.

The Record also broadens operational risk beyond traditional cyber controls: frontier-AI incidents and rapidly growing AI-related debt issuance connect model behaviour, funding-market concentration and operational resilience. The FPC’s judgement is a warning about combined transmission channels, not evidence that a systemic event has occurred.

UK banks, gilt dealers, hedge funds, repo-market participants, clearing and settlement operators, prime brokers, asset managers, treasury teams, operational-resilience functions and UK financial authorities.

Watch the Bank’s gilt-repo resilience measures, the early-2027 leverage-ratio consultation, changes in hedge-fund positioning and prime-brokerage capacity, the private-markets System-Wide Exploratory Scenario, and whether sovereign-yield or AI-financing shocks begin to impair core-market functioning.

Verification boundary: The Bank’s Record establishes the FPC’s risk judgement, the 2% countercyclical capital buffer decision and the intended consultation. It does not establish a final leverage-ratio rule, a fixed consultation date or current market dysfunction.

Primary source — Bank of England, Financial Policy Committee Record – September 2026.

FMI WORLD NEWSROOM story reference: FMIWT-20260930-004.