The stock market has proven resilient in the face of President Donald Trump's aggressive trade war and conflict in the Middle ...

An internal company memo revealed the person is a neurologist who previously worked at Morgan Stanley and is a Harvard grad.

Zohran Mamdani wants Ken Griffin to pay more tax on his Central Park penthouse. We break down what it means for homeowners ...

Billionaire hedge fund manager Ken Griffin added two of the most iconic artifacts in American history to his growing ...

Ken Griffin’s hedge fund Citadel has been outshone by smaller rivals so far this year, as the firm was stung by the market ...

Ken Griffin, the founder and CEO of Citadel, is seen in November 2014. Nancy Stone / Chicago Tribune. Ken Griffin, from left, then-Mayor Rahm Emanuel and then-police Superintendent Eddie Johnson ...

The hedge fund billionaire, who voted for Trump, said the Republicans’ “Big Beautiful Bill” “will unquestionably add several ...

Billionaire developer and Palm Beach resident Ken Griffin's most recent purchases include rare copies of the Emancipation ...

Citadel, the hedge fund run by billionaire Ken Griffin, reported a record $16 billion in profit last year — knocking off Ray Dalio’s Bridgewater as the most successful firm seven years running.

Griffin reportedly plans to lend his copies of the Thirteenth Amendment and the Emancipation Proclamation to a US institution ...