I'm no day trader, so I really don't have a clue how to read time/sales and L2, but when I saw that rimm was up 1+pt in pre-market, I wanted in, so when the market opened, it would gap up big, and I'd sell at the open...Didnt really happen. I'd also see green prints of something like this go by..
71.50 700
71.50 100
71.50 100
71.50 600
71.50 4000
71.50 1200
71.50 250
71.50 300
71.50 120
Soon price was at 71.80. I figured all this huge size, for sure price would hold this area. At the open everything just dropped. I dont get it, but whatever.