Hyperscalers' AI Binge Fuels Record Corporate Debt Surge, Raising Bond Market Concerns
The U.S. bond market is experiencing an unprecedented surge in corporate debt issuance, fueled by hyperscalers' massive investments in artificial intelligence (AI). The record-breaking issuance of US$1.68 trillion from January to mid-August has raised concerns about 'crowding out,' where private-sector borrowing could reduce demand for Treasuries and put additional pressure on Uncle Sam.
The AI buildout is driving the corporate debt market, with high-tech companies accounting for 12.8% of issuance in 2026. However, they are growing faster than other sectors, adding significant 'duration' supply to the market. This increased duration comes with greater interest rate risk, which could explain why the Treasury term premium is rising.
Ben Chabot, associate professor at Northwestern University and a former Fed policy advisor, warns that if the flood of corporate issuance continues, it will increase the term premium for U.S. Treasuries. However, strategists at Goldman Sachs argue that any spillover from AI issuance has been limited, and they expect only a marginal impact on U.S. rates.
The market reaction to new Federal Reserve Chair Kevin Warsh's comments downplaying inflation risks may be the primary trigger for steeper U.S. borrowing costs. His statements have left investors unclear about potential changes to the Fed target, which has contributed to rising Treasury yields and a spike in sovereign borrowing costs worldwide.