S3 data show CoreWeave (CRWV) short interest at 16% of float with $4 billion notional. Shorts are flat year-to-date after a large Q4 2025 build.

CoreWeave's $21.4 billion debt load, B+ credit rating, and questions about GPU depreciation timelines have made it a focal point for AI infrastructure skeptics.

CoreWeave is the largest "neocloud" provider, with a market cap of roughly $42 billion.

Short sellers are betting CoreWeave's debt-fueled growth model breaks before AI demand catches up.

CoreWeave represents the AI infrastructure thesis to its purest form: borrow money, buy Nvidia GPUs, rent out compute. If the model works, it validates a trillion dollars in AI capex. If it breaks, the implications are significant. Nvidia is roughly 7% of the S&P 500, and CoreWeave is one of its most leveraged customers—a stress indicator for the durability of Nvidia's demand. If CoreWeave can't service its debt, it calls into question the market's biggest bet.

The bear case centers on a potential asset-liability mismatch: $21 billion in debt secured by GPUs depreciated over six years, while Nvidia's annual release cycle may compress their economic value faster than the accounting reflects. Jim Chanos calls Nvidia's investments in customers like CoreWeave 'circular financing,' comparing it to Lucent and Enron. We estimate one-third of the short position is convertible arbitrage, however that would still suggest an additional 15M of directional shorts since the bond was issued in December. Blue Owl's reported difficulty syndicating a $4 billion CoreWeave data center loan, which the firm disputes, signals tightening credit appetite, worth monitoring as refinancing needs approach.

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