CoreWeave Raises $2.75 Billion in High-Yield Debt in Two Weeks — Can Its AI Cloud Growth Outrun the Interest Bill?

Shares surged 8.1% to $124.51 after CoreWeave closed a $1 billion add-on debt sale on April 21, capping a frenzied month of deal-making that has transformed the AI cloud company's financial profile — and raised the stakes on execution.

• Nearly $2.75 Billion in New Bonds in One Week, at a Steep Price

CoreWeave issued $1 billion in 9.750% senior notes due 2031 as additional notes under its April 14 indenture, bringing total outstanding notes to $2.75 billion — priced at 102% of par. That 9.75% coupon is expensive by any measure: it means roughly $268 million a year in interest on these notes alone. CoreWeave's total debt already exceeds $21 billion , and in Q4 2025, the company's interest expense hit $388 million — eating nearly a third of quarterly revenue. Every new dollar of debt raises the bar for the revenue growth needed to justify it.

• A Flood of Contracts Gives the Bull Case Real Numbers

CoreWeave's April momentum — $6 billion from Jane Street plus the Meta and Anthropic pacts — delivers clear evidence that specialized AI cloud demand continues to outrun supply.

Jane Street also invested $1 billion in CoreWeave equity at $109 per share , tying a major customer's fortunes directly to the stock. The revenue backlog grew to $66.8 billion, more than four times where it began the year , giving management unusual visibility into future income. 2026 revenue guidance of $12 billion to $13 billion implies growth of 134% to 153%.

• The Math Only Works if Capacity Ships on Time

CoreWeave's 2026 capex plan runs $30 billion to $35 billion, and it projects spending $2.60 in capex for every $1 of new revenue.

Free cash flow remains deeply negative, and net losses widened to $1.167 billion for 2025.

The saving grace is timing: CoreWeave faces no debt maturities until 2029 and held $4.2 billion in cash at year-end 2025. But any data-center delay or power-supply snag would stall the revenue that services this debt.

• Customer Concentration Remains the Quiet Risk

Microsoft is responsible for 70% of CoreWeave's revenue — a hyperscaler that could eventually bring these workloads in-house. Cantor Fitzgerald raised its price target to $156 and Evercore ISI to $150 , but heavy leverage, sizable ongoing losses, and deeply negative free cash flow keep skeptics engaged. At $124.51, the market is betting CoreWeave can build fast enough to grow into its debt. That bet gets more expensive every quarter.