Bank of England Warns AI Debt Boom Risks Severe Market Correction
The Bank of England has issued a stark warning that the rapid surge in artificial intelligence-related debt poses a significant risk of a sharp market correction. Citing estimates that AI debt issuance reached $450 billion in the past year, the central bank’s Financial Policy Committee noted that this volume now exceeds the UK government’s annual bond sales. While the financial system has remained resilient so far, officials fear that if AI productivity gains fail to meet expectations, the resulting shock could destabilize both corporate valuations and sovereign debt markets. Governor Andrew Bailey emphasized that regulators cannot assume the AI industry will self-regulate, though he cautioned against premature legislative action, urging a focus on understanding and testing risks first. The central bank also highlighted broader vulnerabilities, including high leverage in hedge funds betting on UK government bonds, and signaled plans to introduce market-based measures to limit leverage in these sectors early next year.
Key points
- AI-related debt issuance totaled $450 billion in the year to September, more than double the previous year’s total, according to Morgan Stanley estimates cited by the Bank of England.
- The Financial Policy Committee warned that the risk of a sharper market correction persists, particularly if AI earnings expectations are significantly revised downward due to slower adoption or development.
- Bank of England Governor Andrew Bailey stated that regulators cannot stand aside and must address risks, including potential cyber attacks and rogue AI models, but should not rush into regulation without first establishing credible intervention points.
- The central bank identified high leverage in hedge funds betting on UK government bonds as a key vulnerability, noting that bank lending in gilt repo markets has doubled to approximately £200 billion since 2023.
- The Bank of England plans to examine market-based measures, such as increased central clearing requirements and minimum haircuts, to limit leverage in gilt repo markets, with proposals to be published early next year.
Background
This warning follows a period of rising long-term yields driven by massive debt issuance from tech giants like Alphabet, Amazon, and Microsoft, which have issued roughly $220 billion this year. Earlier in 2026, Bank of England Governor Andrew Bailey also warned that frontier AI models could accelerate cyber risks and trigger disorderly market corrections. The current financial stability update comes amid broader concerns about global bond market volatility and the potential for a financial crash if AI-driven productivity gains fail to materialize as forecasted.
Why it matters
The convergence of massive AI debt issuance and high leverage in government bond markets creates a fragile financial environment where a disappointment in AI earnings could trigger a cascade of losses across corporate and sovereign debt. This could lead to a sharp correction that impacts broader economic stability, potentially forcing central banks to intervene or leading to higher borrowing costs for governments and corporations. The Bank of England’s proactive stance signals a shift toward more rigorous stress testing and potential regulatory adjustments to mitigate systemic risks before they materialize.
What to watch
The Bank of England is expected to publish proposals for market-based measures to limit leverage in gilt repo markets early next year. Regulators will continue to monitor AI debt issuance and earnings expectations closely, while the Financial Policy Committee will assess the effectiveness of current safeguards against potential shocks. The central bank may also review capital requirements for banks to ensure they can withstand potential market volatility without exacerbating leverage risks.
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