Nvidia shook the bond market in June 2026 by issuing $25 billion in corporate debt, one of the largest deals seen in years. Not long after, Amazon aimed to raise at least another $25 billion through a multi-part bond offering. Together with Alphabet, Microsoft, Meta, and Oracle, these tech giants are pouring massive sums into building AI data centers, designing custom chips, and upgrading power systems to handle costly AI workloads.

These six hyperscalers have already issued about $244 billion in bonds globally in just the first half of 2026. To put that into perspective, the five biggest AI-focused tech firms raised $121 billion in US corporate bonds across all of 2025. That was already a huge jump from their $28 billion average annual issuance from 2020 to 2024. Now, mid-2026 numbers show they have more than doubled last year’s total.

Interestingly, these companies are not just tapping US dollar markets. Bank of America reports that bonds issued in currencies like euros, sterling, yen, Swiss francs, and Canadian dollars have surged, doubling their share to 30% of hyperscaler bond sales. Each currency market is seeing new records thanks to these tech borrowers.

Overall US investment-grade bond issuance is set to hit a record $2.46 trillion this year, climbing nearly 12% from 2025. Experts link much of this growth to capital spending on AI by these major players, revealing how tech’s rapid AI push is reshaping debt markets.

Credit spreads on hyperscaler bonds have widened somewhat, reflecting the flood of new supply. This isn’t alarming, just typical market behavior when supply jumps. However, the scale is testing how much investors can absorb, especially given the tech sector’s dominant role.

For investors, this wave of tech bonds brings both chances and risks. Passive funds tracking investment-grade indexes will find themselves more exposed to these companies just by default. Active managers must decide how much hyperscaler debt they want in their portfolios, balancing potential rewards against concentration risks.

The expansion into euro and yen bonds also changes how investors hedge currency risk, affecting broader rate and currency markets beyond just tech.