The credit stress follows a crash in AI infrastructure debt issuance, which plummeted from $113B in June to $23B last month. While US firms raised $106B via high-grade and high-yield bonds for projects this year—nearly triple the $37B raised in 2025—investors are now demanding more collateral and stronger payment guarantees. Broader US junk corporate bond yields have spiked to 8.41%, the highest level in 18 months, as CoreWeave's junk bond yields reached 15%.
