Amaranth filed a lawsuit against JP Morgan claiming $1 billion in damages, on the grounds that the bank interfered in the company's efforts to strike a better deal with Goldman Sachs and Citadel LLC.In December 2012, the New York State Court of Appeals upheld an earlier dismissal of the case. During the collapse of Amaranth Advisors, Centaurus was credited as being one of the major players on the other side of their position