Summary · why it matters
Steve Eisman, the investor known from "The Big Short," warned on CNBC's "Fast Money" that OpenAI and Anthropic account for roughly 70% of AI-related revenue at Microsoft, Amazon, Google, and Oracle, and as much as 25% to 35% of those companies' cloud revenue, calling this concentration the "Achilles' heel" of the AI trade. He cautioned that if something goes wrong at either lab, cheaper Chinese open-weight models could spark a price war across the industry, though he is not shorting the trade yet, awaiting financial data once the labs go public. The warning highlights a risk that affects NVIDIA and Palantir differently: Nvidia supplies chips needed by all AI labs regardless of the winner, while Palantir bets on companies reducing reliance on any single lab. Palantir's revenue rose 93% to $1.94 billion last quarter, beating expectations, and it raised full-year guidance to $8.15-$8.158 billion, its largest-ever raise, with U.S. commercial revenue up 149% to $764 million. Nvidia has signed deals with Apollo, Blackstone, BlackRock, Brookfield, Goldman Sachs, and KKR to mobilize over $500 billion in third-party AI financing, capping its exposure at roughly 25% per project, and generated close to $48 billion in free cash flow last quarter. However, Michael Burry has flagged Nvidia's reliance on a small group of hyperscale customers, and a Bloomberg analysis cited by Burry traces roughly $46 billion in equity stakes and $879 billion in purchase commitments among major tech firms, including a $300 billion Oracle-OpenAI commitment, while Nvidia's five-year credit default swap spread has roughly doubled in two months. Palantir's U.S. government revenue hit $809 million, nearly matching commercial revenue, tying results to federal budgets, and CEO Alex Karp called his 18-month growth target "a very high goal." Nvidia sent analysts a memo denying vendor financing, first reported by Barron's, but Burry and other short sellers have publicly rejected that explanation. As of Q1 2026, Nvidia was held by 275 hedge funds, up from 264, and Palantir by 96, up from 89.