In: Finance
You intend to purchase a 1-year, $1,000 face value bond. Coupon rate of this bond is 18%. Market interest rate is 24 percent. Coupon payments are semiannual, what is the duration of the bond? (Answer is rounded)
Given for the bond,
Face value = $1000
Coupon rate = 18% semiannually
coupon = (18%/2)*100 = $90
Yield to maturity = 24% compounded semiannually
Duration is calculated as below table:
here, since it is a semiannual bond, discount factor = 1/(1+YTM/2)^(2*period)
PV of coupon = discount factor * coupon
Price = sum of all PV = $949.30
weight = PV of coupon/ price
duration of each coupon = year*weight
duration of the bond = sum of all duration = 0.96 years
In term of semiannual period, duration = 2*0.96 = 1.92 periods
Year | Period | Coupon | Discount factor = 1/(1+YTM/2)^(2*year) | PV of cash flow=coupon*discount factor | weight = PV of Coupon/Price | Duration = weight*year |
0.5000 | 1 | $ 90.00 | $ 0.89 | $ 80.36 | 0.0846 | 0.0423 |
1.0000 | 2 | $ 1,090.00 | $ 0.80 | $ 868.94 | 0.9154 | 0.9154 |
Price | $ 949.30 | Duration | 0.96 |