CoreWeave upsizes convertible bond sale to $3.7 billion as AI data-center costs mount

CoreWeave, the Nvidia-backed cloud computing company that rents out banks of graphics processors to artificial intelligence developers, priced an upsized $3.7 billion sale of convertible senior notes late Thursday, its second major trip to the debt markets this year to keep pace with the cost of building AI data centers. The company simultaneously opened a separate program to sell up to 35 million shares of stock over time, a combination that sent its shares down sharply before they partially recovered on Friday.

The two moves, disclosed in a filing with the Securities and Exchange Commission, mark the latest instalment in a financing campaign that has made CoreWeave one of the most active corporate borrowers in the country this year, as it races to build out the power-hungry data centers that underpin the current boom in AI computing.

The numbers

CoreWeave had initially proposed selling $3 billion of convertible notes due April 2033, with initial buyers given an option to purchase up to $500 million more. By the time the deal priced after Thursday's close, it had been upsized to $3.7 billion in principal, carrying a 2.875 percent coupon paid semi-annually. The notes convert at a rate of 10.2194 shares per $1,000 of principal, equivalent to a conversion price of about $97.85 a share — a 22.5 percent premium over CoreWeave's $79.88 closing price that day.

Net proceeds are expected to run to roughly $3.6 billion, or about $4.1 billion if the overallotment option is exercised in full. Of that, CoreWeave earmarked roughly $498.8 million to buy "capped call" options, a hedge designed to limit dilution to existing shareholders if the stock eventually trades above the conversion price. The remainder, the company said, will go toward general corporate purposes, including debt repayment and capital spending. Settlement is scheduled for September 22.

Alongside the bond sale, CoreWeave struck an equity distribution agreement with ten banks, among them Deutsche Bank, Goldman Sachs, J.P. Morgan and Morgan Stanley, allowing it to sell up to 35 million Class A shares gradually through an "at-the-market" program, with agents earning commissions of up to 2 percent of each sale.

How CoreWeave got here

CoreWeave has gone from a niche GPU-leasing firm to one of the most closely watched companies in the AI infrastructure trade since its Nasdaq listing last year, riding demand from customers that include Microsoft, Meta and OpenAI. In its most recent quarterly results, covering the three months to June 30, the company reported revenue of $2.575 billion, more than double the year-earlier period, alongside a net loss of $626 million and a contracted revenue backlog of roughly $104 billion, plus more than $25 billion in additional commitments signed early in the third quarter. Capital expenditure for the first half of the year totaled $14.1 billion, and the company has guided investors toward $35 billion to $39 billion in capital spending for 2026 as a whole, most of it going toward data-center construction and the Nvidia chips that fill it.

That spending has been funded largely with borrowed money. CoreWeave finished June with roughly $35 billion of recourse and non-recourse debt on its balance sheet, and by some measures — including operating lease obligations — total liabilities approaching $72 billion against about $5 billion of shareholder equity, according to an analysis of the company's disclosures published that day. Thursday's offering is not CoreWeave's first: in April, the company priced an upsized $3.5 billion of convertible notes due 2032 at a 1.75 percent coupon, alongside a separate $1.75 billion senior notes sale. That the coupon on Thursday's notes came in more than a percentage point higher than April's — even as it remains far below the 8.5 to 9.75 percent the company pays on some of its existing secured debt — is a sign that investors are now demanding more to lend it money.

Who is affected, and the market's reaction

The immediate effect fell on CoreWeave's shareholders. The stock fell more than 5 percent in Thursday's session to close at $79.88, part of a slide that has left it down roughly 16 percent over the past week and about 25 percent over the past month, according to trading data tracked alongside the offering. Investors were weighing the prospect of further dilution from both the convertible bonds and the new share-sale program against a debt load that has grown rapidly alongside the company's data-center build-out. Shares partly steadied on Friday, trading close to $89 by midday, according to Yahoo Finance market data.

In its filing, CoreWeave was explicit that the fundraising serves a broader strategic aim beyond simply funding data centers — an attempt to reassure bondholders even as it takes on more debt.

Proceeds may support "capital expenditures, investments in the Company's subsidiaries, acquisitions, and support of its objective of migrating its enterprise credit profile toward investment grade," CoreWeave told the SEC.

Wall Street's response has been mixed rather than uniformly negative. Rosenblatt analyst John McPeake maintained a "buy" rating on the stock this week with a $250 price target, according to a summary of analyst coverage, and the broader analyst pool covering the stock still carries an average price target well above its current trading level, with the majority rating it a buy. But the same coverage noted that CoreWeave's price-to-sales multiple remains elevated relative to peers, and that the combination of new debt and share issuance reads to some investors as a leverage and dilution signal for a company whose free cash flow remains deeply negative. The scale of the debt already on CoreWeave's books — layered atop existing senior notes, asset-backed facilities and now a second convertible issue in five months — has become a recurring theme in how analysts frame the stock, even as they credit the underlying demand for its computing capacity.

What happens next

The notes are due to settle on September 22, after which CoreWeave's balance sheet will carry roughly $3.7 billion in new long-term obligations layered on top of existing borrowings, offset in part by the capped-call hedges meant to cushion dilution up to a share price of about $199.70. The at-the-market equity program has no fixed timetable; CoreWeave can draw on it opportunistically, meaning further share sales, and further dilution, could arrive with little notice depending on market conditions and the company's cash needs. Investors will get a clearer picture of how the financing is being deployed when CoreWeave next reports quarterly results and updates its 2026 capital-spending guidance, at which point the durability of its backlog — and the market's patience with the debt required to build against it — will again be tested.