"Billionaire" and "successful hedge fund manager" are titles that carry significant weight on Wall Street. These and others apply to Ken Griffin, CEO and founder of Citadel. It's no surprise that ...

Billionaire hedge fund manager Ken Griffin is seeking to sell a penthouse he owns at Zaha Hadid-designed One Thousand Museum, The Real Deal has learned. A company tied to Griffin’s Miami-based ...

Billionaire investor Kenneth C Griffin runs one of the most successful ... market risks and past performance doesn't indicate future returns.

HSBC open to a deal with market maker firms including Citadel Securities and Jane Street Group, sources said. Read more at ...

Elon Musk’s Department of Government Efficiency recruited an assistant to billionaire Ken Griffin to help cut costs across the US national security establishment. Adam Hoffman, 24, left Griffin ...