More Big Tech company debt ‘would increase the macro risks associated with the AI build-out,’ Goldman Sachs warns

Goldman Sachs warns that debt-funded capex by hyperscalers — Amazon, Google, Meta, Microsoft and Oracle — has jumped to $121 billion year-to-date versus a $28 billion five‑year average, and could theoretically expand by another $700 billion (excluding Oracle), meaningfully increasing annual U.S. corporate bond supply and macro risk. Janney’s Guy LeBas says the extra issuance has already pushed aggregate investment-grade spreads from ~70bp to ~85bp and could widen to ~95bp as investors demand higher premia; while large tech firms are unlikely to breach covenants given ample cash, the bigger credit vulnerability is private-credit exposure to smaller AI participants (eg, data‑center REITs and GPU‑backed loans) whose collateral can rapidly depreciate in a downturn. Goldman adds that negative share‑price reactions to capex surprises could force managements to scale back spending, highlighting how continued debt-financed AI build-out could amplify market and credit risk.

Analysis

Goldman Sachs highlights a marked increase in debt-funded capex among hyperscalers—Amazon, Google, Meta, Microsoft and Oracle—with $121 billion of debt issuance year-to-date versus a $28 billion five-year average, and notes a theoretical capacity to expand debt by another $700 billion excluding Oracle. Janney Capital’s Guy LeBas quantifies market effects: U.S. corporate bond net new issuance runs about $600–$800 billion annually, hyperscaler issuance could increase that supply by roughly 20%, and aggregate investment-grade spreads have widened from ~70 basis points to ~85 basis points with the potential to reach ~95 basis points if the trend continues. Credit-risk concentration is shifting into private markets where smaller AI participants and data-center REITs are borrowing aggressively; Goldman and LeBas warn that private-credit structures backed by short-lived assets such as GPUs are pro-cyclical and vulnerable if AI spending slows. Goldman also notes that while big tech covenant breaches are unlikely given large cash balances, negative share-price reactions to capex surprises could force managements to scale back capex, which would feed back into issuance and spread dynamics.

Key Decisions for Investors

• Limit new allocations to private-credit strategies that lend to smaller AI participants and data-center REITs, and avoid or meaningfully size down exposure to loans primarily backed by GPU purchases or multi-tenant data-center cash flows
• Monitor investment-grade spread moves and new-issue supply closely—if spreads push toward ~95 basis points, reduce duration in credit portfolios or employ spread protection to hedge against further widening
• Maintain selective equity exposure to large hyperscalers given ample cash and low covenant-breach risk, but be prepared to reprice positions if managements signal capex pullbacks after negative share-price reactions