Citadel Investment Group has hired 10 people as it expands its business in Asia and Europe.

Headlining the moves is Manolis Liodakis, a top-ranking quantitative European equities researcher, who joins from Citigroup. Liodakis will move from London to the $20 billion hedge fund’s Chicago headquarters, Bloomberg News reports.

Citadel also announced the hiring of nine others, including an eight-member team from a Credit Suisse hedge fund.