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Forbes·2026-02-14 17:47
Ken Griffin founded Citadel in 1990 but first began trading from his Harvard dorm in 1987, putting a satellite dish on the roof to get real-time stock quotes. Today, his tech-powered firm executes 25% of U.S. stock trades. Griffin ranks in the top 50 of the #Forbes250 living innovators list. https://t.co/S1qgkoTqmt (📸: Aaron Kotowski for Forbes) ...