This is a specif news based setup , ranbaxy fda action is another most recent example , these setups exist to screw the shorts ,basically a stock gaps down so a lot of offers come up to short the stock surges up taking these shorts on , the second and third up wave are these short buying back the stock.
About trading the stock try and make mistakes with even one stock , what i am trying to tell you is even when you put one stock on line you tend to learn more then simply observe.