
Billionaire investor Ken Griffin is the founder and CEO of Citadel Advisors, one of the most successful hedge funds in the world. He is popular for his open-mindedness to diverse asset classes and his quantitative investing approach. His personal net worth is estimated at $51.8 billion (£38.5 billion), according to Forbes' latest estimate.
Under Griffin's leadership, Citadel has generated over $74 billion (£55 billion) in net gains since its inception in 1990. The hedge fund has outperformed the S&P 500 by 8 percentage points over the last three years.