Goosed, it is all about perfomance, and that's for sure!  Like many have said, we either have it or we don't, only time will tell.  But when the stock takes a hit, psychologically, people think, "oh, darn, they don't have it."  And when it goes up, it's, "they've got it!"  

It's difficult to completely divorce oneself of the above reactions, they are visceral.  But, in fact, the fluctuates are caused by traders, and are largely irrelevant to the actual value of the company.  At least that's what I keep telling myself! :)