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The busiest short sellers

Funds that just appeared

First public disclosure less than 90 days ago, on the registers that name funds and that we have been reading long enough to say so.

• Alyeska Investment Group, L.P. Since September 2, 2026
• 富達基金(香港)有限公司 Since September 1, 2026
• Summit Partners Public Asset Management, LLC Since September 1, 2026
• Goldman Sachs Asset Management International Since August 11, 2026
• Millennium Capital Management (Australia) PTY LTD Since July 28, 2026
• HBK Services LLC Since July 14, 2026
• Castlebar Capital LLP Since July 2, 2026

The busiest over the past three months

Ranked by number of disclosures filed, which is a different question from the size of the positions.

• Citadel Advisors LLC 689 disclosures
• Marshall Wace LLP 559 disclosures
• AQR Capital Management, LLC 389 disclosures
• Millennium International Management LP 308 disclosures
• Qube Research & Technologies Limited 273 disclosures
• Two Sigma Investments, LP 262 disclosures
• Citadel Securities (Europe) Limited 256 disclosures
• Worldquant, LLC 219 disclosures
• Arrowstreet Capital, Limited Partnership 174 disclosures
• D. E. Shaw & Co., L.P. 172 disclosures
• Walleye Capital LLC 168 disclosures
• Capital Fund Management SA 158 disclosures

Every open position, by fund

Ranked by number of open short positions, across every market.