Renaissance then unleashed computers to automatically trade on those signals. Read: ‘Jim Simons was the greatest’ — Ray Dalio, others pay tribute to trading legend Fundamental investors ...

Jim Simons, a mathematician who became one of the most successful investors in modern financial history, has died at age 86.

It's the closest thing we may ever get to a definitive account of how mathematics prodigy Jim Simons built hedge fund ... hand over to an algorithm and trade even when the logic was unclear ...