Ok, here is what I am doing. I am working with a EZ language programmer to develop studies based off stock behavior vs its opening price. I am studying statistics on behavior, and looking at bars on 5 min intervals once statistics are found to develop a strategy. Here is the problem... Upon looking at these "oh wow!" charts with beautiful run ups/rund downs at the open i check T&S to see 249 shares going off at an erroneous price at the open .75 away from where the stock is "really trading actively." Hence, the chart isnt accurate nor is the data. So basically, my statsistics are skewed, and the info is untradable when this happens. Does anyone have any advice to filter out these prints or somehow avoid them or perhaps use an "average" price range of the open? or even REDUCE thier impact in my calculations? I am looking for any ideas to help me get a better idea of where the price is actually tradable at the open, b/c I want to make an automated system buying off of certain % limits off the open, but when these prints are being used, it makes it next to impossible. Anyone have any exprience with this stuff?