July 2nd, 2007, 4:39 am
Sure. E is taken from the last annual report, P is the current market capitalisation. Imagine a company that has lost its main asset (e.g. through withdrawal, law suit, etc). It had large earnings E and after that the price fell dramatically to today's P. In a stable environment however, the P/E will always be larger than 1, it would actually give you some kind of insight what discount rate the market uses.