It’s practically an adage on Wall Street by now: You know you’re in trouble when Ken Griffin calls.

Lone Pine Capital posted a 43% gain for its hedge fund investors through June, notching one of its best-ever starts to a year and landing it among 2026’s top performers.

Stephen Miran, a former Federal Reserve governor, is rejoining hedge fund Hudson Bay Capital Management as a senior strategist.

Magnetar Capital, the $18 billion hedge fund firm, will shun human analysts for its newest offering and instead deploy hundreds of AI bots to research stocks.

Elliott Investment Management hired former Blackstone Inc. executive Teresa Sweeney to run the roughly $80 billion hedge fund firm’s global research and data science group.

Hedge fund veteran Ricky Sandler is shuttering Eminence Capital and returning investor cash after a 27-year run, telling clients it hasn’t performed well enough in recent years to keep operating.

Instacart co-founder Apoorva Mehta launched a hedge fund that relies on an army of artificial intelligence agents, one of the few using that technology to essentially replace fundamental portfolio managers.

Divya Nettimi’s stock-picking hedge fund Avala Global soared 15% in the first two-and-a-half weeks of April, erasing March losses after snapping up artificial intelligence bets at a discount.

D1 Capital Partners’ equities book tumbled 6% in March, according to people familiar with the matter, making Dan Sundheim’s firm one of the worst-performing stock-pickers that month.

A highly shorted stock. A shrinking pool of shares available to trade. A price that keeps climbing.

Two Sigma Investments’ biggest hedge funds generated standout returns during a frantic month for markets, edging out peers even as the firm grapples with executive infighting.

OpenAI shares have fallen out of favor on the secondary market — in some cases becoming almost impossible to unload — as investors pivot quickly to Anthropic, its biggest competitor.

OpenAI shares have fallen out of favor on the secondary market — in some cases becoming almost impossible to unload — as investors pivot quickly to Anthropic, its biggest competitor.

No hedge fund employee works harder than Eve.

Billionaire Paul Singer’s Elliott Investment Management is backing credit specialist Debdeep Maji’s new hedge fund, the latest move in a wave of multistrategy firms tapping outside talent to help manage their billions.

His time horizon is infinite. His capital is permanent. And the rewards, he argues, should be enormous.

In just three to five years, hedge funds could have fleets of artificial intelligence bots helping them research and trade hundreds of stocks, according to hedge fund founder Divya Nettimi.

Izzy Englander’s Millennium Management is handing credit hedge fund FourSixThree even more investing firepower after first backing it with $1 billion last year — the latest step in the multistrategy firm’s push to tap external funds to help manage its cash.

AlphaQuest, the roughly 25-year-old quantitative hedge fund that recently added “Alpha” to its name, is calling it quits after three consecutive years of losses.

Citadel’s Ken Griffin said the Trump administration’s tendency to reward loyalists doesn’t play well with business executives and criticized the president’s willingness to enrich his family while in office.