Debt investors are willing to lend CoreWeave billions of dollars. CoreWeave stock closed up 19% on Wednesday.

On Wednesday, the artificial-intelligence cloud company announced it has priced $2 billion of senior notes with a 9.25% interest rate due in 2030.

CoreWeave told Barron's the deal size was upsized by $500 million and was five times oversubscribed.

"CoreWeave intends to use the proceeds from the offering of the Notes for general corporate purposes, including, without limitation, repayment of outstanding indebtedness," the company said in a press release.

Last week, CoreWeave reported better-than-expected revenue and full year guidance, reporting its initial quarter as a public company. CoreWeave also revealed it signed a new hyperscaler in the first quarter, which the company's website showed was Alphabet unit Google.

A day after the report, CoreWeave revealed in the company's 10-Q filed with the Securities and Exchange Commission that it has entered into an agreement for additional services worth up to $4 billion through April 2029 with OpenAI.

It has been a wild ride for CoreWeave stock since the company priced its initial public offering at $40 in late March. The pricing came in below the initial expected range, but the stock has since rallied more than 100% after CoreWeave's upbeat earnings report, and as large technology companies gave robust guidance for their 2025 capex spending during earnings season.