KG
Ken Griffin
United States · Hedge Funds · Citadel
Estimated Net Worth
$51.20B
Per Bloomberg Billionaires Index, January 2026 — not a live figure
About Ken
Founded the hedge fund Citadel in 1990 from his Harvard dorm room; also founded and owns roughly 80% of Citadel Securities, one of the largest market makers in the US.
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Ken Griffinisn't part of our live-tracked core roster — we haven't verified their public shareholdings to price them minute-to-minute, so this figure is a static, point-in-time estimate from Bloomberg Billionaires Index, not derived from a live stock price like the rest of this site. See the full ranked list →