Approximately $17 billion in shares across five AI infrastructure companies remain sold short. At CoreWeave, short interest climbed 15% since the start of October to 70.6 million shares, coinciding with a 28% decline in its stock price to $62.
Friday, October 23, 2026
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Short Sellers Gain $6B on AI Data Center Bets in October
US Markets14 hours ago
Bearish traders targeted the builders of machine learning hardware and processing hubs throughout the current month to capitalize on falling valuations. Short sellers earned $6 billion in paper profits during October, according to Ortex data, with Nebius accounting for $2.94 billion and CoreWeave nearly $1.7 billion. Bets against IREN and Applied Digital contributed over $1.2 billion as firms grew concerned about the debt used to fund the rapid expansion of AI capacity.
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