Comment by Tazerenix
Simons himself completely disspells this idea in his interview on Numberphile.
Simons himself completely disspells this idea in his interview on Numberphile.
Two other data points for this are
Brown and Mercer (who became ideologically opposed co-CEOs)
https://old.reddit.com/r/algotrading/comments/k299vp/were_br...
"Speech recognition" in those days meant Markov too
AFAIK, one of the early hires at RenTech was Leonard Baum, famous for the Baum–Welch Algorithm.
RenTech is quite secretive, but this supports the rumors that simple graphical models for time series were behind some of their trading strategies.