AI hyperscalers issue $159B in debt, 47% more than last year
Amazon, Microsoft, Alphabet, Meta, and Oracle are borrowing at historic rates to fund an AI infrastructure buildout that dwarfs anything the tech industry has attempted before.
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Add us on Google by Editorial Team Jun. 9, 2026The five largest cloud and AI companies have collectively sold $159 billion in bonds during the first five months of 2026. That figure is 47% higher than the same window last year, and it represents a fundamental change in how the most cash-rich companies on the planet are choosing to finance their futures.
The numbers behind the borrowing binge
From 2020 through 2024, the Big Five averaged roughly $28 billion in US corporate bond issuance per year. In 2025, that number jumped to $121 billion for the full year. And now, barely halfway through 2026, they’ve already blown past that with $159 billion and counting.
Amazon alone accounted for a staggering chunk. The company executed a near-record bond sale of approximately $54 billion in March 2026, a deal so large it forced Bank of America analysts to revise their full-year hyperscaler debt forecast upward. BofA now expects total borrowing for the group to land somewhere between $140 billion and $175 billion for the year.
AdvertisementUBS estimates that cumulative public debt for the hyperscaler group could reach $230 billion to $240 billion by the end of 2026.
Where the money is going
Total capital expenditures for the Big Five are projected to surpass $600 billion in 2026. About 75% of that, roughly $450 billion, is earmarked specifically for AI-related infrastructure. Think data centers, custom chips, cooling systems, power generation, and the sprawling physical backbone required to train and run increasingly massive AI models.
The logic behind using debt rather than cash is actually pretty straightforward. These AI data centers and infrastructure assets have long useful lives, often measured in decades. Issuing long-duration bonds allows the companies to match the timeline of their financing with the timeline of their assets.
What this means for investors
The sheer volume of issuance, potentially $230 billion to $240 billion by year-end according to UBS, means supply is increasing rapidly. All else being equal, more supply tends to push yields higher, which could make these bonds increasingly attractive to institutional buyers hunting for yield.
Amazon, Microsoft, and Alphabet all carry top-tier investment-grade ratings. But ratings agencies will be watching the trajectory closely. A company going from $28 billion in average annual borrowing to potentially $175 billion in a single year is the kind of acceleration that eventually prompts uncomfortable questions, even for the strongest credits.
As hyperscalers absorb an increasingly large share of the investment-grade bond market, they could crowd out smaller or lower-rated issuers who find it harder to compete for investor attention. The corporate bond market is large but not infinite, and $159 billion in five months from just five companies takes up a lot of oxygen.
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