Divorce of Hedge Fund Power Couple Shakes Ikos

``While some of the diminished performance at the firm can be blamed on the financial crisis, the ongoing dispute between British-born Martin Coward and Elena Ambrosiadou his wife and Ikos co-founder — including a recent fight over whether Mr. Coward was entitled to use the private jet — have some investors worrying about how the business is being run, The Journal said, citing people familiar with the matter.''