Ken Griffin, the billionaire hedge- fund manager who’s captured almost 20 percent of trading in equity options through his market-making business, is taking aim at the global swaps industry.
Citadel Securities, a unit of Citadel LLC in Chicago, has fired about 10 percent of its staff.
Jamey Thompson, co-head of Citadel LLC’s global credit group, is leaving the $15 billion hedge-fund firm after five years.
Steve Weller, co-head of Citadel LLC’s global equities group, left after more than a decade at the hedge fund run by Kenneth Griffin, according to two people familiar with the matter.
Two Goldman Sachs Group Inc. managing directors are leaving for Citadel LLC, joining the migration of traders leaving Wall Street banks for hedge funds as lenders pull back from riskier businesses.
Patrik Edsparr , chief executive officer of Citadel Investment Group LLC’s securities unit, was asked to leave the firm, seven months after Ken Griffin picked him for the position.
In the summer of 2008, Steven A. Cohen was warned by an employee at Citadel LLC that a portfolio manager he was about to hire, Richard S. Lee, had a reputation for insider trading.
Jeff Runnfeldt, co-head of Citadel LLC’s global equities group, is leaving after a decade at the hedge fund.
"Citadel does not have, and never has had, an' insider trading group."
- Katie Spring on Jul 25, 2013