JANE STREET GROUP, LLC

Jane Street Group operates as the holding company for Jane Street Capital. The company is one of the more secretive firms in operation with none of its employees’ salaries published and only one of its three original founders known, Tim Reynolds, who stepped down from his position at the firm in 2012. The company was cofounded by Tim Reynolds and three partners, who are unnamed, making up three traders and a technologist in 2000. The company started with recruiting engineers and programmers from various Ivy League schools to teach them to create computer programs for stock trading. The company moves around $4 to $8 billion in shares each day, which accounts for almost 2 percent of all U.S. stock trades. Jane Street Group today has offices located in New York, London, and Hong Kong, trading around the clock in a variety of financial products including Equities, Commodities, Futures, Options, Currencies, Bonds, and ETFs. The company is active in over 200 electronic exchanges and trading venues in around 40 countries around the world, engaging in over a million in total trades on a busy day alone. Jane Street Group has over 400 employees and is one of the largest providers of ETF liquidity in the world, quoting over 2,000 ETFs in real time. Jane Street Group has over 60 dedicated ETF traders that handle its trades of over $2.5 billion in ETFs daily. The company has won a variety of awards including the ETF Liquidity Provider of the Year Award in both U.S. and Europe, Best ETF Market Maker, Best ETF Liquidity Provider in the U.S., and Best North American ETF Market Maker in 2015 alone. The company highly emphasizes technology, creating in house solutions and sophisticated software. Jane Street Group is one of the only companies using OCaml, capitalizing on the fact that the language’s functional programming style allows it to easily be reviewed by non-programmer traders.