Hedge fund manager Chris Hohn was ordered to pay his ex-wife about $530 million, and the judge called him a financial genius

Chris Hohn founded The Children's Investment Fund and, with his wife Jamie Cooper, the Children's Investment Fund Foundation, one of Britain's largest charities. After about 15 years of marriage they divorced, with assets of about $1.5 billion in dispute. Hohn offered his wife a quarter, arguing his investing skill created the wealth. She argued the marriage was a partnership and sought an equal share. In a 310-paragraph judgment dated 12 December 2014, Mrs Justice Roberts awarded Jamie Cooper-Hohn about 36 percent of the available resources, reported at £337 million, about $530 million. The judge found Hohn was a "financial genius" whose special contribution justified departing from equal division. Earlier the Court of Appeal had refused her permission to bring expert evidence on the value of his management companies, calling it speculative and late. The case set the test for "special contribution" in English big-money divorces, and commentators said the 50/50 starting point was still open to argument. Both continued their charitable work^†.