AI Infrastructure Boom Tests Corporate Bond Market

NEW YORK — America's artificial intelligence boom is creating a new challenge for financial markets as major technology companies turn increasingly to corporate debt to finance massive AI infrastructure investments.

Companies including Amazon and Alphabet have been raising billions of dollars through bond markets to fund data centers, computing capacity and related infrastructure. Total AI-related debt issuance by major technology companies has reached approximately $220 billion in 2026, compared with just $12.5 billion the previous year.

The scale of borrowing is beginning to test investor appetite. While investors continue to view many of these technology companies as financially strong, they are demanding higher yields and larger concessions as more long-term bonds enter the market.

Amazon's recent $25 billion bond sale was priced at a spread of about 120 basis points over U.S. Treasury securities, roughly twice the spread seen last year.

The surge highlights the enormous cost of building the infrastructure required to support the next generation of AI services.

For investors, the key question is becoming whether the technology sector can continue borrowing at this pace without pushing financing costs significantly higher.

The development could also influence the wider U.S. corporate bond market, particularly if large technology companies continue returning to investors for additional funding.