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The Bank of England’s Financial Policy Committee said on 25 September 2026 that the likelihood of interconnected vulnerabilities crystallising together has risen since July. It cited the re-escalated Middle East conflict, sovereign bond yields at levels not seen since 2008, rapid AI-related debt issuance, and frontier AI incidents, while judging UK households, businesses and banks resilient.
The Bank of England’s Financial Policy Committee (FPC) concluded in its September 2026 record that the likelihood of interconnected vulnerabilities in the financial system crystallising has risen since its July meeting. The Committee pointed to the re-escalation of the Middle East conflict, sovereign bond yields at levels not seen since 2008, a rapid build-up of AI-related debt, and frontier AI incidents as compounding risks — while judging that UK households, businesses and the banking system remain resilient.
The FPC, which meets to identify risks to financial stability and agree policy actions to safeguard the UK financial system, said the re-escalation of the conflict in the Middle East had renewed uncertainty around growth and the path of interest rates in several advanced economies. This, it said, re-intensified the risk that vulnerabilities in sovereign debt markets, risky asset valuations and risky credit markets could crystallise at the same time.
Rising oil, gas and refined product prices linked to the conflict are producing what the Committee described as a more protracted negative supply shock to the global economy. This has contributed to sustained increases in sovereign bond yields across advanced economies, to levels not seen since 2008. The financial system has so far been resilient to these increases, with market adjustments mostly gradual, but the FPC cautioned that hedge fund leverage in the gilt market, while stable, remains elevated, and the risk of a sharp adjustment persists.
On AI, the Committee highlighted two developments. First, AI-related debt issuance is growing rapidly, with global issuance in 2026 expected to exceed that of countries such as the UK, broadening capital markets’ exposure to AI developments. Second, frontier AI test-environment incidents, where autonomous models have taken unexpected actions, have reinforced the FPC’s calls for firms to prepare for AI-related cyber and operational risks. Equity valuations for AI companies fell sharply in July, an adjustment amplified by the unwinding of stretched positions and deleveraging, though there was no spillover to core markets.
Why the FPC’s Warning Matters
The record matters because it signals that the UK’s financial stability watchdog sees risks becoming interconnected rather than isolated — meaning a shock in one area, such as AI-related equity valuations, could simultaneously hit sovereign debt markets and risky credit markets. The FPC noted that growth prospects and fiscal outlooks depend in part on expectations that AI will deliver significant productivity gains, so a reassessment of those expectations could affect not only AI asset valuations but also sovereign debt markets.
The Committee also flagged structural concerns in AI financing: increasing indebtedness of AI firms, combined with opacity and ‘circular arrangements’ in some financing, can complicate risk assessment and could amplify losses if expectations disappoint. For households and businesses, the immediate reassurance is that the FPC judges the UK banking system appropriately capitalised with high levels of liquidity and able to support the economy in a stress.
From July’s AI Correction to Now
The September meeting follows a period of turbulence. In July 2026, equity valuations for AI companies fell sharply; the FPC said the scale of the adjustment was amplified by unwinding stretched positions and deleveraging. Despite significant losses for some leveraged investors with concentrated positions, there was no spillover to core markets. Concerns about the sustainability of AI-related earnings and capital expenditure growth may have contributed to sentiment, according to the record.
The FPC has previously called on firms to prepare for AI-related cyber and operational risks. In the September record it underlined the importance of firms engaging with guidance from regulators, the National Cyber Security Centre, and sector engagement groups including the Cross Market Operational Resilience Group, the Frontier AI Information Sharing Forum and the AI Consortium. The Committee also referenced ongoing work on gilt repo market resilience and the private markets System-Wide Exploratory Scenario (PM SWES) exercise, which aims to fill data gaps in understanding how private credit — an important source of real-economy financing — might be affected in a stress scenario.
What the Committee Could Not Confirm
The record is explicit that several risks remain unresolved. The FPC said the risk of a sharper equity correction persists, notably if there is a more significant shock to earnings expectations reflecting concerns around the pace of AI development or adoption. It said concerns about AI earnings sustainability may have contributed to July’s market sentiment — a tentative attribution rather than a confirmed cause.
The Committee also noted that despite stability in hedge fund gilt-market leverage, deeper interconnections between vulnerabilities mean the risk of a sharp adjustment persists. Data gaps in private credit remain: the PM SWES exercise is still underway precisely because understanding of how private markets would behave in a stress scenario is incomplete. The record does not specify which new policy actions, if any, the Committee agreed beyond underscoring ongoing work.
Watch Points After September
The FPC will continue to monitor sovereign debt markets, hedge fund leverage and AI-related financing. Key forthcoming items flagged in the record include the completion of the private markets System-Wide Exploratory Scenario (PM SWES) exercise, continued Bank of England work on gilt repo market resilience, and further engagement between firms and regulators on AI cyber and operational risks. The Committee’s next scheduled meeting and record — expected later in 2026 — will show whether the risk outlook stabilises or deteriorates further, particularly in light of developments in the Middle East, sovereign yields and AI-related earnings expectations.
Key Questions
What did the FPC conclude in its September 2026 record?
That the likelihood of interconnected vulnerabilities in the financial system crystallising has risen since its July meeting, driven by the re-escalated Middle East conflict, elevated sovereign bond yields, growing AI-related debt and frontier AI incidents — while the UK financial system has so far remained resilient.
Why are sovereign bond yields significant in this record?
The FPC said sustained increases in sovereign bond yields across advanced economies have reached levels not seen since 2008, tightening financial conditions globally. The system has so far coped, but elevated hedge fund leverage in the gilt market means the risk of a sharp adjustment persists.
What concerns does the FPC raise about AI?
Three main ones: rapid growth in AI-related debt issuance, including opaque and at times ‘circular’ financing arrangements; the risk of a sharper equity correction if AI earnings expectations disappoint; and cyber and operational risks highlighted by frontier AI test-environment incidents where autonomous models took unexpected actions.
Are UK banks and households considered at risk?
According to the record, no immediate alarm is warranted domestically: the Committee judges households and corporates resilient and the UK banking system appropriately capitalised with high levels of liquidity, with past stress tests showing resilience to scenarios including higher energy prices.
What is the PM SWES exercise mentioned in the record?
The private markets System-Wide Exploratory Scenario is an ongoing exercise intended to fill data gaps and improve understanding of how private credit and related markets — an important source of real-economy financing — might be affected in a stress scenario.
Source: primary
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