If an investor paid par ($100) today for a typical straight preferred, such an investment would give a current yield of just over six percent. If, in a few years, 10-year Treasuries were to yield more than 13 percent to maturity (as they did in 1981) these preferreds would yield at least 13 percent; since the rate of dividend is fixed, this would reduce their market price to $46, a 54-percent loss. The difference between straight preferreds and Treasuries (or any investment-grade Federal-agency or corporate bond) is that the bonds would move up to par as their maturity date approaches; however, the straight preferred (having no maturity date) might remain at these $40 levels (or lower) for a long time.