Stow, barring any bad news, they usually gap over prev days high to trigger some stops at the open, will see, but TASR, RIMM, NVEC and now TZOO are famous for this sorta trading....
I closed RIMM, letting a decent paper gain turn into a tiny loss. But not interested in holding overnight. Homebuilders had a helluva day, which is great because they are on my hit list too.