We "can" set stops to trigger based on price movement (and shares traded at that price)...I choose to not use the stops, simply because I don't use hard stops anyway. Stops tend to add to whipsaws, we call that move the "shakeout" - GE is notorious for shakeouts. I have an order sent to make only 6 cents for half my number of shares, so I can catch the "slingshot" that happens so often. The Specialist will gap down 50 cents, print up 8 or 10 cents immediately, and then go back down...I want to at least capture half. I then simply follow the market action, tape read, etc. to cover the other half. Sometimes even trading the opening stocks for a while. The strategy gets you "in" with an edge, and there are various ways of getting "out" - based on how you trade. Don