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The Bank of England’s Financial Policy Committee said the likelihood of several financial vulnerabilities crystallising together had risen since its July meeting. It pointed to higher sovereign yields, Middle East conflict, growing AI-related debt and cyber risks, while saying UK households, businesses and banks remain resilient.
The Bank of England’s Financial Policy Committee (FPC) said the chance of multiple financial vulnerabilities crystallising at once has increased since its July meeting, citing higher sovereign bond yields, renewed conflict in the Middle East and expanding AI-related financing. In its record of the 25 September 2026 meeting, the committee said the UK financial system had so far remained resilient, and judged households, businesses and banks able to withstand stress.
The committee linked the worsening outlook to a more prolonged negative supply shock after the conflict in the Middle East re-escalated and prices for oil, gas and refined products rose. It said uncertainty about growth and interest rates had returned across several advanced economies. Sovereign bond yields in those economies had risen to levels last seen in 2008, tightening financial conditions. So far, market adjustments had been mostly gradual and the financial system had proved resilient.
The FPC said hedge fund leverage in the gilt market remained elevated, despite being stable. That leaves a risk of a sharper adjustment, particularly as vulnerabilities become more interconnected. The committee pointed to the Bank’s work on gilt repo market resilience as relevant to managing that risk.
AI-related risks featured in both markets and operations. The committee said AI company share valuations fell sharply in July, with the adjustment amplified by the unwinding of stretched positions and investor deleveraging. Some leveraged investors with concentrated positions suffered significant losses, but the FPC said there was no spillover to core markets. It also warned that rapid growth in debt-funded AI investment, opaque financing and possible circular arrangements could make risks harder to assess and increase losses if expectations disappoint.
How AI and Bond Risks Could Interact
The committee’s warning is that these pressures may reinforce one another. A reassessment of expected AI productivity gains could weigh on AI company valuations and financing. The FPC said it could also affect sovereign debt markets, since growth prospects and fiscal outlooks partly depend on those anticipated gains. Meanwhile, higher yields can tighten funding conditions for borrowers and expose weaknesses in leveraged positions.
Risky credit markets, including parts of private credit, are also vulnerable to tighter financing conditions, the FPC said. Private markets provide funding to the real economy, so losses or reduced access to finance could affect more than investors alone. The committee cited an ongoing Private Markets System-Wide Exploratory Scenario as a way to address data gaps and improve understanding of how the sector might respond to stress.
For UK households and businesses, the record offers a measure of reassurance: the FPC judged both groups resilient and said the banking system was appropriately capitalised and highly liquid. That assessment describes the committee’s view at the time of the meeting; it does not remove the risks it identified or guarantee how the system would perform under future conditions.
From July’s Outlook to September’s Record
The FPC meets to identify risks to UK financial stability and agree policy actions intended to protect the financial system’s resilience. Its September record compares the outlook with the committee’s previous meeting in July and describes developments in global markets, AI financing and domestic resilience.
In the period covered, sovereign yields rose across several advanced economies, while equity markets overall remained resilient to tighter financial conditions. AI company valuations experienced a sharp fall in July, but the committee reported no spillover to core markets. The record also describes recent incidents in frontier AI test environments in which autonomous models took unexpected actions, prompting further concern about cyber and operational resilience.
The FPC said past stress test results had demonstrated that UK banks would be resilient in a scenario involving higher energy prices. The published material also described the system as appropriately capitalised and highly liquid. These are the committee’s assessments and findings; the record does not supply a forecast that every institution or borrower would be unaffected by a future shock.
Where the Risks Could Break
The record does not specify when, or whether, the interconnected vulnerabilities it describes will crystallise. It says the risk of a sharper market adjustment persists, including if a larger shock changes expectations for AI earnings or adoption. The scale of any potential effect on sovereign debt, risky credit or investors is not quantified in the supplied record.
Details about the AI financing structures and the extent of associated exposures are also not set out here. The FPC said opacity and, at times, circular arrangements can complicate risk assessment, but the published summary gives no complete breakdown of their scale. The committee’s assessment that UK households, businesses and banks are resilient does not establish how each would fare under every combination of shocks.
Monitoring Markets and AI Resilience
The FPC said firms should prepare for AI-related cyber and operational risks by engaging with guidance and analysis from regulators, relevant authorities and the National Cyber Security Centre. It also pointed to work by sector groups, including the Cross Market Operational Resilience Group, Frontier AI Information Sharing Forum and AI Consortium.
The Bank’s work on gilt repo market resilience and the ongoing private markets exploratory scenario are among the efforts identified in the record. The committee said the scenario is intended to fill data gaps and improve understanding of private markets in a stress. The supplied material does not give a date for a further decision or set out a new policy action tied to a specific milestone.
Key Questions
What did the FPC warn about in September 2026?
It said interconnected financial vulnerabilities were more likely to crystallise together, pointing to higher sovereign yields, Middle East conflict, AI-related financing and cyber and operational risks.
Did the Bank say UK banks were in difficulty?
No. The FPC said the UK banking system remained appropriately capitalised, had high levels of liquidity and was strong enough to support households and businesses in a stress.
What did the record say about AI company shares?
It said AI company valuations fell sharply in July and that leveraged investors with concentrated positions suffered significant losses. The committee reported no spillover to core markets.
Why is AI-related debt a concern?
The FPC said growing debt issuance, opaque financing and possible circular arrangements could make exposures harder to assess and amplify losses if expectations for AI disappoint.
What remains uncertain?
The record does not say whether or when the risks will crystallise, quantify the full scale of AI financing exposures, or specify the size of any future effects on markets or borrowers.
Source: primary
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