Billionaire investor Ken Griffin, founder and CEO of Citadel Advisors — one of the world's most successful hedge funds — has made significant moves in Q3, ramping up stakes in several major stocks. Since its inception in 1990, Citadel has generated over $74 billion (£56.2 billion) in net gains, thanks to Griffin's quantitative investing approach.
In recent months, Griffin's hedge fund executed massive trades, increasing stakes in dozens of stocks while trimming positions in others like Amazon, Coca-Cola, Home Depot, and Citigroup. According to the latest regulatory filing with the US Securities and Exchange Commission (SEC), Citadel significantly increased its holdings in the so-called Magnificent 7 stocks — despite ongoing concerns over an AI bubble.
