User:Vipul/Two Sigma Investments

Two Sigma Investments is a New York City-based hedge fund that uses a variety of technological methods, including artificial intelligence, machine learning, and distributed computing, for its trading strategies. The firm is run by John Overdeck and David Siegel and manages over $20 billion.

Fund information
Two Sigma manages over $20 billion in assets as of July 2014. Two Sigma has been noted in the business press for its unusually high rate of return, comparable to its older and more mature competitors D. E. Shaw & Co. and Renaissance Technologies.

There are two specialized divisions:


 * Two Sigma Private Investments (Two Sigma Pi) focuses on private equity, credit and special opportunities, real estate, real assets and natural resources, and venture capital.
 * Two Sigma Ventures focuses on venture capital investments in companies, with a focus on companies operating in the realm of data science, machine learning, and artificial intelligence.

The company's main office is in New York City. It also has branch offices in Houston, London, and Hong Kong.

People
Two Sigma Investments was founded in 2001 by John Overdeck and David Siegel. Co-founder David Siegel is a computer science Ph.D. from the Massachusetts Institute of Technology and held the position of Chief Information Officer for D. E. Shaw & Co. prior to starting Two Sigma. The other co-founder, John Overdeck, is an International Mathematical Olympiad Silver Medalist who subsequently studied mathematics and then rose to the position of Managing Director at D. E. Shaw prior to leaving to co-found Two Sigma. According to its most recent SEC filing, the company employs 586 people, including 407 investment professionals.

History
Two Sigma Investments was founded in 2001 by John Overdeck and David Siegel.

The fund size has grown steadily, reaching about $8 billion in November 2011 and $20 billion in July 2014.

In October 2013, Two Sigma Private Investments announced that it was joining with Stephen Hannahs to form Wings Capital Partners, a commercial aviation private equity, investment, advisory and financing company. In July 2014, it was announced that Simon Yates, Citigroup's global head of equity derivative sales and trading, left the bank to join Two Sigma.

Actions against employees for stealing trade secrets
In February 2014, Forbes reported that former Two Sigma employee Kang Gao was prosecuted by the Manhattan District Attorney for intending to use Two Sigma's secret proprietary trading technology, that he had learned while working there, at the new company, Citadel LLC, that he was planning to join. Gao could face up to four years in jail. A Bloomberg.com article reporting the story noted that while Gao wasn't the first person to be sued by Two Sigma for breaching trade secrecy contracts, he was the first to face criminal charges for it.

Investigation into high-frequency trading practices
In July 2014, Reuters reported that Two Sigma was one of ten companies being targeted by the U.S. Securities and Exchange Commission in their probe into high-frequency trading practices.