The banks valuations have dropped significantly over the last year, presumably because the market does not know how much of their loans will turn bad, Is there any way of estimating this, i know it is very subjective, presumably a loan is an asset on the banks balance sheet that is if it doesn't turn bad, is their any way of finding out how much loans were lent out for mortgages per year, then you can assume that the older mortgages have less risk of turning bad, is there any easy way of finding this information