Nvidia is no longer just selling the picks and shovels of the AI boom. It is increasingly lending them out, and the first real stress test of that strategy has arrived. For long-term shareholders, the question is no longer how fast demand grows, but how much of that demand rests on Nvidia's own balance sheet.
The numbers are large. As of its July filing, Nvidia carried roughly $36 billion in off-balance-sheet backstops for AI cloud customers, plus a guarantee of up to $105 billion tied to a proposed 10-gigawatt OpenAI data center in Ohio. It has also signed on as tenant for about $20 billion of future data center leases, which it intends to pass along to third parties. Its later filing pointed to more than $500 billion in total commitments over the coming years, most maturing through fiscal 2029. A year ago, its annual report did not mention these arrangements at all.
Those promises mostly cost nothing unless a partner defaults. That is exactly why this month matters. Neocloud stocks such as CoreWeave, Nebius and IREN have each fallen at least 30% in October. CoreWeave, carrying about $51.6 billion of debt, has seen the cost of insuring against its default climb above 11%, and some of its longer-dated bonds now yield over 15%. Several Nvidia-backed firms, including Firmus, have pulled or stalled planned public offerings. Nvidia's own shares are down about 7.6% this month, on pace for their weakest stretch in almost a year.
Nvidia does have real strengths here. It generated about $70 billion of free cash flow in the first half of the year, against a little over $4 billion at AMD, while Alphabet turned cash-flow negative in the second quarter as it funded its own buildout. Few companies could shoulder this kind of risk, and the strategy does pull more chips into customers' hands. But it also blurs the line between a supplier and a lender, and it makes Nvidia's revenue partly dependent on its customers' access to credit. When a company helps finance the purchase of its own products, reported demand can look stronger than end-user demand really is.
So what does this mean for long-term investors? Watch the footnotes more than the headlines. The durable part of Nvidia's moat is its technology and cash generation. The less durable part is any growth that depends on guarantees, residual-value promises and customers borrowing at ever-higher rates. Over the coming quarters, the useful measures are how large the backstops grow relative to free cash flow, whether neocloud borrowing costs ease, and whether end demand for compute is covering the debt it supports. A business this profitable can absorb a few losses. The risk is a concentration of them in one place, and patient owners should know how much of it they are holding.