The alarm first sounded last Tuesday, when venture capitalist Chamath Palihapitiya highlighted CoreWeave bond yields touching 15% and asked whether the AI buildout was creating a private-credit bubble. The company’s balance sheet gave the question force: at the end of June, it had $35.6 billion in debt, $16.3 billion in lease liabilities and a first-half net loss of $1.4 billion.¹

By Wednesday, the unease had spread. CoreWeave’s bonds endured a second straight day of selling, its shares fell roughly 15.5%, and a hot inflation reading pushed Treasury yields higher. John Atkins of PitchBook called CoreWeave “a bellwether for the riskier cusp of hyperscaler sentiment,” warning that investors were taking “a dim view of speculative borrowing” that may need refinancing at punishing rates.²

Not everyone saw a broken business. David Sacks amplified the counterargument that the bond and stock moves reflected volatility around bets on “multi-trillion-dollar AI outcomes and exponential growth,” rather than a collapse in demand.David Sacks (DavidSacks)³ Nvidia chief Jensen Huang also said CoreWeave’s financial position was stable and “improving every day,” arguing Nvidia did not need to backstop the company.⁴

The skeptics’ case rests on what credit markets were pricing in. Five-year CoreWeave credit-default swaps climbed above 1,000 basis points, implying roughly 60% odds of default within five years, according to Bloomberg calculations cited by CNBC.⁴ Bernstein analyst Madison Rezaei put the dilemma plainly: CoreWeave needs not only customers for its computing capacity, but lenders willing to finance the hardware on terms that still reward shareholders; in her view, its long-term economics remain challenged.⁵

CoreWeave and its investors counter that $103.7 billion in non-cancellable remaining performance obligations, largely from customers including Microsoft and OpenAI, supports repayment. “98% of our revenue is from committed, take-or-pay contracts,” the company said.⁶

That is the dividing line for the wider AI trade. Demand may be real, but bond investors are asking the less glamorous question first: will they get paid back? As one analyst put it, credit markets are where the boom’s weaknesses can show up earliest.⁷