The AI infrastructure buildout has officially entered its “write really big checks” phase. Hyperscaler-related debt issuance has crossed the $1 trillion mark, and the financing playbook has shifted dramatically from traditional bank loans to a sprawling mix of corporate bonds, private credit, joint ventures, and equity raises.
The trillion-dollar tab
Alphabet, Amazon, Meta, Microsoft, and Oracle have collectively committed roughly $1.6 trillion in capital expenditures from 2023 to 2026. Annual spending on AI infrastructure alone is projected to exceed $1 trillion by 2027.
Total external financing needs for AI infrastructure through 2028 are estimated at around $3 trillion, with more than half of that expected to come from debt and private markets.
The bond market has become the primary ATM. Meta issued a $30 billion public bond offering in 2025, one of the largest corporate debt raises in recent memory. Oracle managed an $18 billion single-day bond sale.
