AI debt binge tops $680B as data center bond yields near 7%

Advanced-computing debt issuance blew past $680 billion by October 2026, according to Crypto Briefing — roughly five times where it stood in 2023. The borrowers are mostly cloud hyperscalers, the giants that rent out computing muscle, and they're increasingly putting data centers and AI chips on credit instead of paying from cash flow.

The exact tally depends on the definition. Research puts AI-specific issuance for 2026 between $466 billion and $500 billion, while the broader advanced-computing bucket lands somewhere between about $680 billion and more than $850 billion. That spread of hundreds of billions shows how much the label matters.

The price of that borrowing is climbing fast. Average yields on top data center bonds pushed toward 7% by October 2026, up from below 5% earlier in the year — a jump that forces a project financed at 7% to earn considerably more than one financed under 5%.

A few names dominate the deal flow. Amazon has issued more than $54 billion in debt, Alphabet sits around $31.5 billion and Meta close behind at roughly $30 billion. Combined issuance from the big tech firms is estimated at $200 billion to $370 billion for 2026, spread across public bonds, private credit and off-balance-sheet structures that keep data center debt off the headline balance sheet.

The borrowing isn't expected to slow. Research projections suggest about 35% of hyperscaler capital expenditures could be debt-funded in 2027. Crypto Briefing flags three things to watch: whether data center bond yields keep pushing past 7%, whether new deals need bigger concessions to pull in buyers, and whether that 35% projection holds or gets revised.