John Paulson is an American hedge fund manager and investor who is renowned for his successful investment strategies. He is best known for his prescient bet against the U.S. housing market in 2007, which earned him billions of dollars. Paulson's investment strategies are based on
From Wikipedia
John Alfred Paulson is an American billionaire hedge fund manager. He leads Paulson & Co., a New York-based investment management firm he founded in 1994. He has been called "one of the most prominent names in high finance".