On Wall Street, fortunes are often won and lost with the tiniest advantages. And for the past few years, one trading firm has stood out from the... How Jane Street’s secret billion-dollar trade ...

A Citadel Securities lawyer told a London court that officials at British hedge fund GSA Capital LLP can't unsee information taken from a secret algorithm that is at the center of a lawsuit. The U.S.

In recent years, Wall Street has been enthralled by computer models. Models to design and execute complex trading strategies to hedge risk or arbitrage minor pricing imperfections. Models to measure ...

* In finance, a technique used by institutional investors to break up large trades into smaller blocks to avoid detection by other traders, floor specialists and market makers. * A new form of ...