the day to day, week to week, month to month fluctuation in stock price is determined by emotion. If you are a short and can take advantage of this, you'll make quite a bit of money.
as a long, however, i ask myself will hans earn more 10 years from now than it is earning now. if the answer is yes, then hans is definitely a buy. the long term stock price is ALWAYS determined by earnings. good luck to both short and longs