AI Debt Boom Tests Investor Appetite as US Companies Pile on Borrowing
Synopsis
Investors are demanding higher yields on bonds financing the AI buildout, with technology credit spreads widening as a flood of issuance raises concerns that demand could reach a tipping point.
US AI debt issued by major technology companies has jumped to $220 billion in 2026, according to available BNP Paribas data. This marks a sharp increase from $12.5 billion a year ago, up over 17 times on a yearly basis.
The increase is due to technology firms borrowing to fund their AI infrastructure, including their huge data centers for intensive AI computing.
The surge in issuance is already squeezing spreads in corporate bonds, with technology bonds’ spreads now at 89 basis points, nine basis points above the investment grade bond market.
Amazon recently sold $25 billion in long-term bonds, with a spread of around 120 basis points over similar maturity Treasury yields, compared to the same period last year, according to the analysts cited.
Alphabet sold bonds in early August in the United States, which were well-received but demanded a concession of between 10 and 15 basis points on the company’s existing bonds.
Corporate borrowing expands beyond AI
AI debt in the US is part of a larger trend in corporate borrowing. For the corporate bond market in the , SIFMA estimates that $1.681 trillion in corporate bonds have been issued as of July 2026, up 26.9 percent year-over-year.
In context, corporate bonds issuance for the first quarter was $11.7 trillion, up 3 percent year-over-year, according to SIFMA, the securities industry association, as of the end of the first quarter.
Of the total value of corporate bonds in the United States, 45.2 percent were issued by financial companies and 12.8 percent by the high-technology sector, as of the data cited.
Investors face exposure limits
The US AI debt increase is not fueling worries about the credit quality of companies such as Amazon and Alphabet, considered strong credits by investors.
Rather, the amount and frequency of new borrowing is becoming difficult to absorb for some portfolios, said the fund manager. Pension funds and insurers that buy corporate bonds typically have a limit of 2 percent to 3 percent in any single issuer.
Some of the bonds issued have been bought by foreign investors, pension funds, and insurers, with the investment-grade corporate bond index yielding around 5.4 percent, according to Capital Group.
The US AI debt surge is a signpost of a shift in the financing of expansion in the largest technology companies. Technology companies that have been borrowing heavily in the short term are now seeing longer-dated financing to fund their AI initiatives.
As issuance grows, investors are seeking more concessions on new bonds, Reuters observed, even if the credit quality of most large technology companies is good.
Source: Reuters
Pooja Malik is a business journalist with over six years of experience covering startups, entrepreneurship, and emerging trends. She has previously worked with leading media platforms such as YourStory Media and BW BusinessWorld, where she reported on business, policy, and market developments. Currently, she serves as Editor at The Inspirepreneur Magazine, where she writes and edits stories across business, lifestyle, and travel, with a focus on clarity, accuracy, and reader relevance.
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