Big Tech AI Spending Hits $785B as Debt Loads Trigger Market Concern

The world's largest technology companies are projected to spend $785 billion on AI infrastructure in 2026, according to a recent Moody's Ratings report, with that figure expected to approach $1 trillion in 2027. But the scale of borrowing required to fund this buildout is beginning to rattle investors who once cheered unlimited AI spending.

Amazon, CoreWeave, Google, Meta, Microsoft and Oracle — the companies leading the data center expansion — have issued approximately $193 billion in bonds so far in 2026, a dramatic jump from just $16.7 billion in 2024, according to LSEG data. These firms have collectively taken on about $460 billion in debt to support their AI ambitions, despite being "among the most cash-rich companies in history," Moody's noted.

The ratings agency warned that this debt accumulation could "threaten credit quality" even as credit metrics remain strong for most of these companies. "A material shift in the structure of their balance sheets is becoming evident," Moody's added.

Why it matters

The debt surge signals a fundamental shift in how Big Tech finances growth. For years, these companies relied on massive cash reserves to fund expansion. Now they're tapping capital markets at unprecedented scale, betting that AI infrastructure will generate returns sufficient to justify the leverage. If AI monetization disappoints or takes longer than expected, these debt loads could constrain future flexibility and innovation spending.

Market signals flash caution

Bond spreads for hyperscalers have widened with each new debt offering since last fall, S&P Global analysts wrote last week, indicating investors are demanding higher yields to compensate for increased risk. "Market participants are growing leery of quickly rising leverage from issuers previously characterized by strong and reliable cash flow," they noted.

The cost of credit default swaps — insurance against bond defaults — has also climbed. Oracle's five-year swaps jumped to 218 basis points last Wednesday, while swaps on Amazon, Microsoft, Alphabet, Meta, Nvidia, CoreWeave and SpaceX all ticked upward in late July.

"We're seeing the rates of CDS spike for the Big Tech companies, especially for the ones that are running a little low on free cash flow," said Callie Cox, chief market strategist at Ritholtz Wealth Management. "It's not necessarily a bet that something will fail, but it's definitely raising eyebrows on Wall Street."

Diverging investor reactions

Quarterly earnings reports have produced mixed market responses based on spending discipline and cash flow. Google's stock declined after the company increased its 2026 spending forecast by $15 billion and reported its first negative free cash flow since going public. Meta shares also dipped when the company raised the lower end of its spending guidance by $5 billion, with free cash flow falling to approximately $780 million.

Microsoft, by contrast, added nearly $450 billion in market value after indicating it would hold spending steady and maintain positive free cash flow through fiscal 2027. Amazon announced an additional $20 billion in capital expenditures and negative cash flow but saw its stock rise on stronger-than-expected revenue.

Apple, which has largely avoided the AI infrastructure arms race, has traded inversely to the hyperscalers. "There's this push and pull between financial quality and nimbleness around AI," Cox said. "Depending on the day, depending on the event, depending on the mood, investors may like either side of that equation."

The Hill first reported these details on the growing debt loads and market reactions among AI infrastructure leaders.