In: Finance
Calculate the duration for the 25-year, 9% coupon bond with semiannual coupon payments. The bond is purchased when the YTM is 7%. Calculate the duration by using nonExcel equation. Calculate the duration by using Excel Duration function
We can compute duration of bond with following equation:
where,
y = ytm ( Semi-annual, if coupon is payable semi-annually)
c = Coupon rate ( Semi-annual, if coupon is payable semi-annually)
t = time until maturity ( Semi-annual, if coupon is payable semi-annually)
Information provided,
YTM = 7%/2 = 0.035 (semi-annual)
Coupon rate = 9%/2 = 0.045 (semi-annual)
Time until maturity = 25*2 = 50 (semi-annual)
Putting the values in equation
by solving,
thus,
Computation of Duration by Excel function:
Cell reference -