Markets were rocky last month thanks to geopolitical tensions, and some of the biggest funds in the industry lost money.

Hedge fund billionaire Ken Griffin has expanded his high-end real estate empire with the $45 million purchase of a duplex at ...

Ken Griffin's Citadel Securities is making moves in the cryptocurrency space as the Trump administration embraces the digital ...

Citadel CEO Ken Griffin already holds the record for the most expensive home purchase in Manhattan and just added to his ...

Billionaire Ken Griffin has added another luxury home to his collection, buying an apartment in one of Manhattan’s most ...

Griffin is the buyer behind the $45 million purchase of a unit at the building from Julia Koch, widow of billionaire ...

Socialite Julia Koch sold the 18-room spread in Lenox Hill earlier this month for $45 million to the Citadel founder.

Citadel founder and CEO Ken Griffin lauded Elon Musk for leading president Donald Trump's Department of Government Efficiency ...

Nvidia reported excellent fourth-quarter financial results, beating expectations on the top and bottom lines. Revenue ...

AI mania has taken the world by storm, with the game-changing tech seemingly poised to permeate almost every aspect of our ...

Hedge fund magnate Ken Griffin has dropped $45 million on an 18-room apartment in 740 Park Avenue, one of Manhattan's most ...

Billionaire hedge funder Ken Griffin has long been known as one of residential real estate’s biggest whales, presiding over a personal property empire estimated to be worth billions. Now ...