Quote from vertigo3:
I remember reading a study of mechanical DAX trading based upon previous day's action in S&P, and to improve the performance of the system, the quant did not allow entry until after the first 30 min of DAX trading, something similar performed by U.S. quants could be happening.
When I looked at yesterday's action in ES, it was almost identical to Friday's small range trade and that often means (narrow ranges after a run-up) that the markets are ripe for some profit-taking.
I'm sure that improved the system!
