Jim Simons, who founded Renaissance Technologies said psychology was useless and instead used math. His signature Medallion Fund average 66% per year since 1988. No one – not even Warren Buffet, George Soros, Peter Lynch, Steve Cohen or Ray Dalio even come close.
“It’s a different sort of place. ... We have 25 people in the office,”he says of the small Berkshire Hathaway headquarters in Omaha, Nebraska. “And if you go back, it’s the exact same 25. The exact same ones.”
As per his authorized biography "The Snowball" Buffett makes all the investment decisions singularly; to be fair though both in the investment realm it's a completely different kind of business than Simons'.
