Chinnapong / Shutterstock.com Ken Griffin is a billionaire investor and the founder of Citadel Advisors, one of the world's largest hedge funds. He oversees operations at Citadel, managing around $115 billion in assets under management through strategies in equities, fixed income, and commodities. Griffin built Citadel into a powerhouse since 1990, known for quantitative trading and risk management. His moves often signal market trends, drawing attention from retail investors. Recently, he spent$800,000 ...