
Hyperscaler debt and leverage are fuelling AI-era risk

The Bank for International Settlements has used its 2026 Annual Economic Report to warn that AI-related borrowing, leveraged non-bank lenders and shrinking fiscal space are now reinforcing each other's risks. The Basel-based institution's annual economic report, published on 28 June, delivered its bluntest financial-stability warning in years, flagging a system reliant on borrowing, leverage and lenders that sit outside the banking net. Four pressure points anchored the analysis: persistent inflation risk after the Strait of Hormuz oil shock, the sustainability of AI investment, growing financial risk beyond the banks, and fiscal positions with less room to move than at any point since the Second World War. "Success depends on sound fiscal and financial foundations," BIS general manager Pablo Hernandez de Cos said. The central bank umbrella group framed the warning as urgent, since most of that funding now runs through lenders outside the banking system.Borrowing funds the buildoutThe five largest U.S. hyperscalers, Alphabet, Amazon, Meta, Microsoft and Oracle, are set to spend more than US$1 trillion combined on AI capex across 2025 and 2026, the report found. That spending is outpacing free cash flow, which is why







