CoreWeave Closes $8.5B Investment-Grade GPU Loan — First A3-Rated AI Infrastructure Debt
On March 31, 2026, CoreWeave closed an $8.5 billion delayed draw term loan rated A3 by Moody’s and A (low) by DBRS. It is the first time GPU infrastructure has achieved investment-grade credit status in a structured financing. That rating change is the story — everything else is detail.
What the Rating Unlocks
Before March 31, AI infrastructure debt lived in private credit and high-yield markets demanding 10–15% spreads. Pension funds, sovereign wealth funds, and insurers require A-rated, long-duration instruments. CoreWeave’s DDTL 4.0 meets that requirement. The facility runs at SOFR + 2.25% floating and approximately 5.9% fixed, with a March 2032 maturity.
Compare that to where CoreWeave started: DDTL 1.0 in 2023 priced at roughly 15% floating on $2.3 billion, secured primarily by raw GPU hardware. Three years later, the same collateral type — GPU clusters plus contracted revenue — is pricing like utility debt.
The Cost-of-Capital Compression
| Facility | Year | Size | Rate | Rating |
|---|---|---|---|---|
| DDTL 1.0 | 2023 | $2.3B | ~15% floating | Sub-investment grade |
| DDTL 3.0 | Jul 2025 | $2.6B | SOFR + 4.00% | Sub-investment grade |
| DDTL 4.0 | Mar 2026 | $8.5B | SOFR + 2.25% / ~5.9% fixed | A3 / A (low) |
That is not negotiation — that is reclassification. Lenders have concluded that long-term, hyperscaler-contracted GPU compute behaves more like contracted power infrastructure than venture-financed hardware.
What Backs the Loan
The DDTL 4.0 facility is non-recourse, ring-fenced to CoreWeave Compute Acquisition Co. VIII, LLC. Repayment depends entirely on contracted revenue from that vehicle — primarily Meta Platforms, which holds an estimated $19 billion in total backlog with CoreWeave, including a $5 billion-plus agreement signed in early 2026.
MUFG and Morgan Stanley co-structured the deal. Goldman Sachs and JPMorgan served as coordinating lead arrangers. Blackstone Credit & Insurance anchored. The facility was oversubscribed.
CoreWeave has now raised approximately $28 billion in equity and debt commitments in the past 12 months. Interest expense reached $388 million in Q4 2025, against total debt near $29.8 billion. Positive free cash flow depends on Meta and on sustained GPU utilization — the credit story’s single material risk.
The Structural Signal
AI infrastructure financing has followed the same reclassification path as other capital-intensive industries. Data center developers, renewable energy assets, and telecom towers all moved from high-yield to investment-grade as revenue visibility improved. CoreWeave has compressed that journey into three years by using hyperscaler contracts as the offtake structure lenders needed to reclassify the underlying hardware.
The institutional capital pool that opens at investment grade is substantially larger than what private credit offers. CoreWeave now has access to a borrowing cost that no non-investment-grade GPU cloud competitor can match — and that gap widens with each successive financing.
The next milestone is the first investment-grade AI infrastructure deal outside the United States. CoreWeave has set the template.