Quote from Murray Ruggiero:
I agree that gap effects have become less effective because of 24 hour trading. If you use day session only and base it on the pit SP500, I think we still have some effect because the open is still a event. In many ways it like the changes in opening range breakout in the bonds in the late 1980's when they changed the time of the open from 9:00 am to 8:20, now the reports come out after the open. Larry Williams and Sheldon Knight made a forture because the report came out at 8:30 and the bonds opened at 9:00 am. This made a breakout from the open much more reliable on these report days , which accounted for big range days.
Murray,
Welcome to ET. I've enjoyed your articles in Futures for a long time and welcome your insights here.
For those who don't know him, Murray is a real expert on systems and backtesting.
