From Longman Business Dictionaryyield to maturityˌyield to maˈturity (also maturity yield) noun (plural yields to maturity) [countable] FINANCE the yield of a bond calculated from the time when it was bought, taking into account the price paid for it, interest payments on it, and its value at MATURITY (=when it becomes ready to be paid)SYNREDEMPTION YIELD, YIELD TO REDEMPTIONA disadvantage of yield to maturity is that investors do not typically hold bonds to maturity.