Citadel has taken a short position worth 305 million pounds ($384.5 million) in GSK stock, representing a 0.51% stake, according to data from the Financial Conduct Authority, the FT report said.

Hedge fund Citadel has made a £305mn bet against drugmaker GSK, the biggest short position against the company in more than a decade.

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Single-family homes priced below $500,000 are getting harder to come by, as wealthy buyers drive up demand for high-end homes ...

Ken Griffin, founder of investment firm Citadel, warned Tuesday that President Donald Trump's tariff policies pose a serious ...

The Carnegie Museum of Natural History in Pittsburgh, home to the Tyrannosaurus rex holotype and a famous Diplodocus, will ...

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Citadel CEO Ken Griffin had some strong words about the harmful effects of U.S. President Donald Trump's tariffs. Read more here.

Live Updates S&P 500's Worst Performer and Tariff 'Chaos' 1:38 pm As of mid-afternoon, the Dow Jones Industrial Average and S ...