Quote from eastside:
First: Are you also adjusting for fair value ?? Look thru the previous threads using the "search" function & someone had explained the EXACT calculation & I think even had examples in there. (There are probably 4 or 5 threads named "Don's openings" or something like that which you can look at.) The fair value amount affects the envelope & some people also use different envelopes for buys & sells....I do this most of the time, especially if the gap is very large. But today for example, we opened practically flat so I used the same envelope for both sides...I think I used .45 & got no fills.
Next: Thru trial & error you will find which stocks "work" & which don't for this strategy. Personally I don't do the oils as they are too volatile for me. So you also have to find the stocks that you will be comfortable with when you get a fill. I know if I am too nervous when I get a fill on a certain stock I usually just take it off my list. For example JPM...I go back & forth with that on/off my list. Right now it is back on & working OK.
Good luck