
Citadel CEO Ken Griffin speaks during the Semafor World Economy Summit 2025 at Conrad Washington on April 23, 2025 in Washington, DC. Kayla Bartkowski | Getty Images Billionaire investor Ken Griffin’s hedge funds at Citadel have all posted positive returns during a volatile 2025, led by the tactical trading fund. Citadel’s multistrategy Wellington fund, its largest, gained […]
Read MoreCheck out the companies making the biggest moves midday: Diabetes tech stocks — The Centers for Medicare & Medicaid Services is proposing a rule change that could change the reimbursement rates for continuous glucose monitors and insulin pumps. The news sent shares of diabetes tech stocks lower. Tandem Diabetes Care and Beta Bionics tumbled 4% […]
Read MoreKey Points AQR Capital Management’s Apex strategy rallied 11.4% in the first six months of the year, according to a person familiar with the fund’s returns. AQR’s long-short Delphi equity fund gained 11.6% net of fees in the first half of 2025, the person said. Its alternative trend-following Helix strategy has returned 7.4% so far […]
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