CoreWeave Plans $3 Billion Debt Sale to Fund AI Infrastructure Expansion

CoreWeave plans to raise $3 billion in convertible debt and could sell 35 million shares as it finances its expanding AI infrastructure business.

Sep 18, 2026
3 minute read
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CoreWeave’s AI expansion comes with a multibillion-dollar appetite.

The company said Thursday it plans to sell $3 billion of convertible senior notes due in 2033 through a private offering. Initial buyers will have the option to buy up to an additional $500 million of notes. The potential $3.5 billion raise gives CoreWeave another source of capital as it expands the data centers, power capacity and computing infrastructure needed to support its growing AI business.

The notes will mature April 1, 2033, unless they are repurchased, redeemed, or converted earlier, the company announced.

CoreWeave has not yet set the interest rate or conversion terms; those details will be determined when the offering is priced. It plans to use part of the proceeds for capped call transactions, which are designed to reduce potential dilution if investors convert the debt into CoreWeave shares. The rest will go toward general corporate purposes.

Debt comes with an equity option

The financing comes alongside a separate plan that could give CoreWeave access to even more capital.

The company has established an at-the-market program allowing it to sell up to 35 million Class A shares over time. Based on Wednesday’s closing price, those shares could represent roughly $2.92 billion in potential proceeds, although CoreWeave can choose whether and when to sell them depending on market conditions.

The company said the stock program may support debt repayment, capital spending and its push toward an investment-grade credit profile. Shares fell more than 3% in early trading Thursday, according to Reuters, after gaining more than 16% this year through Wednesday’s close. The size of the fundraising reflects how expensive the AI infrastructure race has become.

CoreWeave said its contracted power capacity reached about 4.2 gigawatts in the third quarter, up from 3.7 gigawatts at the end of June. It also signed short-term customer contracts at an annualized rate of about $40 million per megawatt. The company reported a $104.2 billion revenue backlog for the second quarter and later disclosed more than $25 billion in additional customer commitments signed early in the third quarter.

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The financing math gets more complicated

CoreWeave is effectively keeping two funding levers available: convertible debt now and potential stock sales later.

That flexibility could help the company finance data center expansion without relying entirely on conventional borrowing. But the stock program raises a different issue for existing shareholders: selling millions of new shares can increase the number of shares outstanding, diluting ownership.

The capped calls can reduce some dilution associated with the convertible notes, but they do not eliminate the potential impact of the separate 35 million-share program. Meanwhile, CoreWeave is taking on additional debt at a time when AI infrastructure companies are competing heavily for capital.

What CoreWeave’s financing means for shareholders

The immediate question isn’t whether CoreWeave will issue all 35 million shares. It’s how aggressively the company ultimately needs to use the financing options it is putting in place.

CoreWeave’s growing backlog gives the company substantial contracted demand, but meeting that demand requires continued investment in data centers, power, and computing infrastructure. The new convertible notes give CoreWeave another source of capital without immediately issuing common stock, while the at-the-market program gives it the option to raise additional equity over time.

For shareholders, the numbers to watch are therefore not just revenue growth and backlog. CoreWeave’s debt levels, capital expenditures, cash generation and any shares issued through the new program will show how much financing is required to turn its AI infrastructure commitments into sustainable revenue.

That’s the larger tension behind the $3 billion offering: CoreWeave has plenty of demand. The question is how much capital it will take to satisfy it.

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Related reading: Alphabet recently raised $25 billion through a bond sale as surging AI infrastructure spending pushes tech companies to seek new sources of capital.

Aminu Abdullahi

Aminu Abdullahi is a contributing writer for Channel Insider and an B2B technology and finance writer with over 6 years of experience. He has written for various other tech publications, including TechRepublic, eSecurity Planet, IT Business Edge, and more.

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