Citadel

Citadel stands as the most profitable hedge fund ever, delivering $83 billion in lifetime profits. With $69 billion in AUM and 3,200 employees, its efficiency is unmatched. Citadel Securities dominates market-making through technological superiority. In Q1 2025, the firm posted a 0.85% decline despite its systematic advantage, underperforming #6 Renaissance Technologies' 12.6% gain during the same period. High fees are typical for elite shops like this.