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Hedge funds upped short AI bets in July, Hazeltree says

By Thomson Reuters Aug 12, 2026 | 3:08 AM

LONDON, Aug 12 (Reuters) – Hedge funds upped short bets on AI-related stocks in July, according to a Wednesday report from data platform Hazeltree, part of a broad ​shift in the month that saw chipmaker shares ‌tumble around the world

Here are some details about hedge fund positioning in July:

• Hedge funds increased short positions — bets that a price will fall — in chipmaker Super Micro Computer , as well as AI infrastructure firms Coreweave ‌and ​Nebius Group , the report showed.

• All ⁠three were in the top ⁠10 most shorted stocks in July across the firm’s hedge fund client base, which it says has more than 700 funds. They were also in the top 10 in ​June, but each saw that short positioning grow.

• July saw some nervousness about chipmakers and the AI trade, on ⁠investor concern about valuations and the ⁠sustainability of their bumper revenues. U.S. chip stocks ​dropped 20%, while Korea’s tech-heavy Kospi index fell 22%. – both ​indexes posted their biggest monthly fall since 2008.

• Hedge ‌funds also reduced long positions and raised short positioning in chip giant Nvidia, Hazeltree said, though funds in aggregate were still long.

• Coreweave shares jumped in extended trading on Tuesday after ⁠it beat second quarter estimates. High short positioning can contribute to dramatic moves higher in a share price — a so-called short squeeze — ⁠where a rally ‌can force investors who are short to buy ⁠back the shares, even at a loss.

• “Wall ​Street ‌took profits in some of the year’s biggest ​AI infrastructure ⁠winners without abandoning the trade altogether, instead redeploying capitalinto companies that have shown signs of monetisation. A similar unwind played out in leveraged semiconductor bets, with investors trimming borrowed risk rather than exiting AI exposure entirely,” Hazeltree said.

(Reporting by Alun John; Editing ​by Amanda Cooper)