Citadel and Millennium posted gains in a choppy February as Balyasny and Jain Global slipped

Ken Griffin's Citadel was up in February, according to a person close to the firm.

Denis Balibouse/Reuters

• Big-name funds such as Citadel, ExodusPoint, and more notched gains last month.
• It was another big month for Asia-based funds, including $6 billion Dymon Asia.
• Hedge funds were largely positive last month despite the S&P 500 index recording a loss in February.

Ken Griffin's Citadel performed across the board in February.

The firm's five strategies...