CoreWeave faces scrutiny as AI funding relies on high-yield debt

Yields on the AI cloud provider's junk bonds hit 15% and its stock fell about 16% in a day as investors question a debt-fueled buildout CoreWeave built one of the fastest-growing AI cloud businesses on the planet. It did so largely on borrowed money, and the bill is now getting attention. As of October 14, 2026, the yield on CoreWeave’s 9.625% bonds due 2032 reached 15%. That is the kind of number bond markets usually reserve for companies they think might be in real trouble. Stock investors took the hint.

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