Yield to maturity

Yield to maturity (YTM) is the yield promised by the bondholder on the assumption that the bond will be held to maturity, that all coupon and principal payments will be made and coupon payments are reinvested at the bond's promised yield at the same rate as invested. It is a measurement of the return of the bond. This technique in theory allows investors to calculate the fair value of different financial instruments. The YTM is almost always given in terms of annual effective rate.
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The percentage rate of return paid on a bond, note or other fixed income security if you buy and hold it to its maturity date. The calculation for YTM is based on the coupon rate, length of time to maturity and market price. It assumes that coupon interest paid over the life of the bond will be reinvested at the same rate.

RENDIMENTO ALLA SCADENZA. RENDIMENTO MEDIO EFFETTIVO