I trade a six figure account so can trade several thousand shares if I like. I normally trade 500 share lots. Sometimes more. First of all - I sometimes make more than $1 on the move, sometimes less. But often take more than one trade on it per day. The other day it moved up $5 and right back down $5. I caught a couple points each way. My post was just an approximation- saying it had been good to trade.