The Telegraph: The obscure Wall Street giant at war with the London Metal Exchange
Partially, that is down to its secret weapon: OCaml, a programming language made by French creators. “We build almost all of our software, including our critical trading and risk management systems, in-house using [OCaml],” the company’s website says.
The tool’s champion at Jane Street was Yaron Minksy, who heads up the company’s technology operations, and it has a key advantage for the company which gets its wins at the absolutely cutting edge of trading: speed.