company

Citadel

Citadel is an American hedge fund and financial services company. Ken Griffin founded it in 1990 in Chicago. Citadel LLC is legally distinct from the market maker Citadel Securities.

citadel.com

Founder, CEO and Co-CIO

Ken Griffin

Key facts

Founded: 1990 in Chicago, Illinoissource
Headquarters: Miami, Floridasource
Assets under management: more than $77 billion as of January 2026source
Employees (2024): 3,153source
Net gains since inception, as of December 2025: $90.4 billion (LCH Investments estimate)source

WYDE coverage of Citadel

Newsletter

Visa built stablecoin rails, Wyoming set a giving record, and the EAT Card hit the App Store. Over 60,000 meals.

Jul 18, 2026 · 6 min read

Crypto & DeFi

Citadel Securities Invests $400 Million in Crypto.com at a $20 Billion Valuation

Jul 16, 2026 · 2 min read

Sources

Citadel LLC - Wikipedia

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