I know that it is possible to place multiple ( 20 or more ) orders each day before the markets open to execute on the open, but is it possible to attach to each parent order an ( child ) stop limit order that would be contingent upon the opening price or be contingent upon whatever price each of the parent orders has been filled upon the opening ? To help further explain, I am trying to open several positions each day before the market opens but I need to be able to have a protective stop in place for each order also before the markets open as some of these stocks move way past the stop in just a few seconds. I would be using a very tight stop, of about $.20 cents to $.40 cents and time is absolutely critical. I hope that what I am trying to ask is clear enough. Thanks, David