The Bank of England warns that the financial system faces a risk of a sharp market correction due to a massive surge in AI-related debt, which reached $450 billion in the year to September 2026. Policymakers and investment firms like KKR caution that high tech-sector concentration and heavy borrowing for AI infrastructure leave credit and sovereign bond markets highly exposed. Governor Andrew Bailey advocates for rigorous model testing before formal regulations are introduced.
AI debt issuance surge
- ▪The Bank of England stated that global AI-related debt sales are projected to exceed the total amount of bonds issued by the United Kingdom government in 2026
- ▪Global AI-related debt issuance reached approximately $450 billion in the year leading up to September 2026, more than doubling the total from 2025, according to Morgan Stanley estimates cited by the Bank of England
Market correction risks
- ▪A sharp repricing in financial markets could be triggered by a significant shock to earnings expectations reflecting concerns over the pace of AI development or adoption
- ▪The Bank of England warned on September 30, 2026, that the financial system remains vulnerable to a sharper market correction than the stock slump experienced in July 2026
Tech sector concentration
- ▪KKR projected that tech firms will invest nearly $8 trillion in AI infrastructure by 2030, potentially exposing one-fifth of the investment-grade bond index to AI-related risks
- ▪AI-linked debt tied to hyperscalers such as Oracle currently totals approximately $600 billion, representing about 6.3 percent of the United States investment-grade market, according to KKR
- ▪KKR warned on September 30, 2026, that global credit markets could face significant volatility if there is a downturn in the AI sector, exposing investors to an unusually concentrated investment cycle
AI regulation concerns
- ▪Bank of England Governor Andrew Bailey stated that regulators cannot assume the AI industry will resolve the risks it presents to financial stability, but argued that formal regulation is not the right place to start
- ▪Bank of England Governor Andrew Bailey emphasized the need for rigorous AI model testing, conducted both before and after deployment, ahead of establishing tighter regulatory frameworks
Debatable claims
- ▪Financial regulators should implement formal rules for AI risks immediately
- ▪The revenue targets required to justify AI infrastructure spending are unrealistic
- ▪The surge in AI-related debt poses a systemic risk to the global financial system
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