Treasury yields have climbed to their highest levels in 25 years as multiple forces compete for market funding, with artificial intelligence-driven corporate borrowing emerging as an increasingly significant factor alongside traditional drivers of government debt costs.
Hyperscale technology companies including Amazon, Alphabet, and Nvidia have launched an unprecedented borrowing campaign to finance AI infrastructure, with investment-grade companies selling nearly $1.5 trillion in bonds this year—a 36% increase from the prior year. Nomura Securities estimated that roughly $200 billion in borrowing by major tech companies represents about 25% of the US Treasury’s net issuance to private investors, a level five times higher than in 2025. These corporations have accessed the market with substantial long-dated bond offerings, with Alphabet issuing 30-year debt at yields near 6.4%, while infrastructure financing related to Meta Platforms exceeded 7.5%.
The influx of corporate debt has altered portfolio allocation strategies among bond investors. Fund managers have reduced Treasury holdings and increased allocations to higher-yielding corporate bonds, with investment-grade bond funds raising average corporate bond holdings to 30%—a three-year peak. Overseas investors, traditionally significant funding sources for federal borrowing, have similarly shifted allocations. Treasury Secretary Scott Bessent has responded by emphasizing short-term debt issuance to manage funding needs, which helped limit net new 10-year and 30-year Treasury supply to an estimated $1.2 trillion this year compared to the prior year’s higher volume. However, Bank of America’s economists estimated that increased corporate debt sales pushed 10-year Treasury rates up by approximately 0.3 percentage point this year alone.
Market participants acknowledge the complexity of isolating AI borrowing’s precise impact amid other economic factors, including elevated government spending, economic resilience, and international tensions. Nevertheless, investors and analysts increasingly view the technology sector’s capital demands as a material force shaping the trajectory of interest rates across financial markets. Some analysts have suggested that sustained growth in long-dated corporate debt issuance could eventually force Treasury officials to reduce the size of long-term debt offerings to manage borrowing costs.
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