Unfortunately for some shareholders, the Wells Fargo (NYSE:WFC) share price has dived 34% in the last thirty days. That drop has capped off a tough year for shareholders, with the share price down 46% in that time.

All else being equal, a share price drop should make a stock more attractive to potential investors. In the long term, share prices tend to follow earnings per share, but in the short term prices bounce around in response to short term factors (which are not always obvious). So, on certain occasions, long term focussed investors try to take advantage of pessimistic expectations to buy shares at a better price. Perhaps the simplest way to get a read on investors’ expectations of a business is to look at its