I've been interested in trading the opening gap on the YM for a while now. LAst night I took the plunge and bought a stupid Ebook for $97 dollars. It had tons of BS filler and essentially told you to fade the gap (meaning the difference between the 4:00 PM EST close and the (9:30 AM open) and use a profit target of 6 pts and a stop loss of 17 pts. Worked this AM, and just eyeballing charts it seems like it would work a pretty high percentege of the time. But, there must be a more accurate way of generating a profit target and stop loss. I would think that using the actual volitility of the YM would be the way to go. OR at least one way to go. How many points does price move profitibly on average in say the first half hour. Take a percentege of that and that's your profit target. How many points on average will price move against you on average in the first half hour. That's your stop loss. Close out the trade in a certain amount of time if neither order is hit. Or is 6/17 good enough to make a little spare change over time? Direction, advice, suggestions from anyone trading this sort of gap fading method would be appreciated.