Investors are increasingly concerned about the roughly $70 billion in phantom liabilities that don't appear on major AI companies' balance sheets but could materialize unexpectedly. Even before Nvidia Corp.'s recent $500 billion financing partnership, bond traders were already agonizing over these shadow credit backstops. With its latest move, Nvidia is poised to provide potentially tens of billions of dollars of 'residual value' support for debt deals tied to the artificial intelligence build out. This strategy effectively allows firms to rely on Nvidia's strong credit rating, helping to contain customer costs while masking true financial exposure.

The concern centers on off-balance-sheet commitments that could become real obligations if AI projects underperform or market conditions deteriorate. These phantom liabilities create uncertainty for investors trying to assess the actual credit risk of AI-focused companies.

By leveraging its robust financial position, Nvidia aims to act as a credit anchor for the broader AI ecosystem, but this arrangement raises questions about transparency and systemic risk in the rapidly growing AI sector.