IMF warns AI’s debt-fueled boom poses systemic risk

Global financial regulators are sounding an increasingly urgent alarm about the debt-fueled nature of the artificial intelligence boom, warning that leveraged financing across the AI supply chain now poses a greater systemic threat than stretched equity valuations alone.

The IMF's Tobias Adrian, speaking on a panel on AI and financial stability at the European Central Bank's annual forum in Sintra, Portugal, on Monday, addressed mounting concerns about how companies are financing their AI investments. Adrian, who serves as the IMF's Financial Counsellor and Director of the Monetary and Capital Markets Department, signaled that the pattern of AI-related debt issuance is more worrying than elevated stock prices.x+2

A Chorus of Central Bank Warnings

Adrian's remarks come just days after the Bank for International Settlements published its Annual Economic Report 2026, which explicitly flagged that "the financing of the AI boom also looks increasingly reliant on debt and complex funding structures across the supply chain." The BIS warned that easy financial conditions could tighten and become "a potent amplifier in adverse scenarios where interest rates rise and AI payoffs disappoint."bis+1

The Wall Street Journal News Corp ↗ 0.23% reported that the five largest hyperscalers are on course to devote more than $1 trillion to AI-related capital expenditure in 2025 and 2026, a pace the BIS suggested may prove unsustainable.wsj

Bank of England Echoes Concerns

On the same ECB Forum panel, the Bank of England's Deputy Governor for Financial Stability Sarah Breeden delivered a speech warning that AI infrastructure investment, while "thus far mostly financed by large technology companies' cash flows and equity," has seen debt financing "rising rapidly, and in some new and complex ways." The Bank of England concluded in April that "the financial stability consequences of any fall in AI-related asset prices could well increase" as a result.bankofengland

Breeden also highlighted the accelerating cyber threat posed by agentic AI, calling it her "most proximate financial stability concern" and noting that the Five Eyes cyber security agencies warned last week that "the timeline is not years, it is months."bankofengland

Systemic Risks Converge

The converging warnings from the IMF, BIS, and Bank of England reflect a shared assessment that the AI investment surge has entered a more dangerous phase. The BIS report noted that record-high public debt combined with sovereign debt markets "increasingly dominated by large, highly leveraged hedge funds" had created "a new sovereign-financial stability nexus." An IMF analysis published in May warned that AI is simultaneously amplifying cyber threats that "could trigger funding strains, raise solvency concerns, and disrupt broader markets."imf+1