John Albert Overdeck, born in 1969, is an American billionaire hedge fund manager. He is the co-founder and co-chairman of Two Sigma Investments, a New York City-based hedge fund.
Two Sigma Investments employs a variety of technological methods, including artificial intelligence, machine learning, and distributed computing, to execute its trading strategies. As of May 2017, the firm managed $41 billion in assets.
Overdeck's financial success includes reporting $375 million in earnings in 2016.