Citadel fined $800,000 by U.S. regulators for trading violations
August 05, 2014 at 19:17 PM EDT
NEW YORK, Aug 5 (Reuters) - A unit of hedge fund Citadel LLC was fined $800,000 by U.S. regulators in June for failing to prevent erroneous orders from being sent to several stock exchanges over a nearly three-year period.
