For example, if you bought a house for 5 million shares will be estimated as 5 million loan. 80% full, the right is 4 million, but if the securities were rated lower than 5, you will lower the loan.
Such as, if you buy a house, the price 5 million securities evaluation 5 million, you can get a loan 80% vividly some strategy is 4 million. But if the main body of property. Were lower than 5 you will recover low, too.