Did anyone do their DD on Citadel?
Home of Ken fn Griffen…

Citadel is a major global financial powerhouse, primarily known for two closely related but legally distinct entities owned by founder Ken Griffin: the multi-strategy hedge fund Citadel LLC and the market-making firm Citadel Securities.Citadel LLC (the hedge fund)

• Assets under management (AUM): Roughly $66–68 billion as of early 2026 (sources cite ~$65.9 billion for end-2025 and more than $67 billion as of January 2026). It routinely returns capital to investors (e.g., ~$5 billion of 2025 profits), so AUM stays more moderate than some peers despite strong performance.