The BIS warns that the AI investment boom, which supported the economy in 2025, now poses macro-financial risks, including debt and inflation concerns.
The surge in investment around artificial intelligence (AI), which previously bolstered the global economy in 2025, is now emerging as a potential source of macro-financial instability, according to the latest report from the Bank for International Settlements (BIS).
This report highlights concerns over debt financing for AI infrastructure, inflated valuations of companies, rising private lending, and opaque transactions among major players in the AI sector, including hyperscalers and chip manufacturers.
Economic Resilience Meets New Risks
The BIS notes that while the global economy showed resilience against tariffs and geopolitical tensions in 2025—partially due to AI optimism fueling capital expenditures and trade—the landscape has shifted by 2026. Analysts have identified four critical risks:
- Persistent inflation risks;
- Concerns over the sustainability of AI investments;
- Increased financial vulnerabilities;
- Deteriorating fiscal conditions.
“Optimism around AI may not be sustained, despite the promise of future productivity growth,” the report cautions.
The BIS warns that the current growth in capital expenditures could become unsustainable if production encounters bottlenecks in areas such as electricity and advanced semiconductor supply.
Capital Outlays Exceed Cash Flow
Capital expenditures on AI from the five largest hyperscalers are projected to surpass $1 trillion between 2025 and 2026, with some companies already struggling to align these commitments with their profits and cash flow, compelling them to seek additional debt financing.
“Disappointment in returns could trigger a sudden pullback in financing and turn the capital expenditure boom into a prolonged investment slump,” analysts warned.
The BIS likens the current investment climate to historical technology booms that eventually led to overcapitalization without corresponding commercial success.
Circular Financing and Supply Chain Vulnerabilities
The report also highlights risks arising from circular financing within the AI sector, where companies acquire stakes in each other, leading to potential revenue losses across the supply chain if capital expenditures slow.
Moreover, the BIS underscores that a correction in the U.S. market could reverberate globally, as U.S. stocks represent around 64% of the MSCI Global Index. A reevaluation of AI firms could significantly impact household wealth and global financial stability.
Memory Chip Market Signals Supply Chain Stress
In a related development, the memory chip market has been under pressure, with Micron reporting record revenues of $41.46 billion for the third quarter of fiscal 2026. The company secured numerous long-term customer agreements, indicating strong demand but also highlighting ongoing supply chain challenges.
“We currently have no clarity on when memory [chip] supply will catch up with growing demand,” stated Micron CEO Sanjay Mehrotra.
Additionally, rising chip prices have sparked legal action, with a class-action lawsuit alleging that major DRAM manufacturers colluded to restrict supply and inflate prices, particularly for AI-related products.
As tech giants navigate the complexities of AI infrastructure investments, the challenges of rising costs and supply constraints remain at the forefront of the industry’s concerns.
