On March 31st, CoreWeave closed an $8.5 billion delayed draw term loan facility–DDTL 4.0–rated A3 by Moody’s and A(low) by DBRS. It’s the first investment-grade rated financing secured by high-performance compute infrastructure and an associated customer contract. The press coverage focused on what this signals about institutional confidence in AI infrastructure. The press missed the point. The real story isn’t that GPU-backed debt achieved investment-grade status. It’s how it achieved investment-grade status, and what that mechanism tells us about the GPU debt market that everyone assumes is coming.