In: Finance
An investor has two bonds in his portfolio that have a face value of $1,000 and pay a 9% annual coupon. Bond L matures in 20 years, while Bond S matures in 1 year.
Assume that only one more interest payment is to be made on Bond S at its maturity and that 20 more payments are to be made on Bond L.
a. if the going interest rate is 6%
Price of Bond S
face value =1000
annual coupon amout =1000*9% =90
years to maturity (n) =20
interest rate (i) 6%
Bond price formula = Coupon amount * (1 - (1/(1+i)^n)/i + face value/(1+i)^n
(90*(1-(1/(1+6%)^20))/6%) + (1000/(1+6%)^20)
=1344.097637
So bond S price is $1344.10
Price of Bond L
face value =1000
annual coupon amout =1000*9% =90
years to maturity (n) =1
interest rate (i) 6%
Bond price formula = Coupon amount * (1 - (1/(1+i)^n)/i + face value/(1+i)^n
(90*(1-(1/(1+6%)^1))/6%) + (1000/(1+6%)^1)
=1028.301887
So bond L price is $1028.30
b. if the going interest rate is 8%
Price of Bond S
face value =1000
annual coupon amout =1000*9% =90
years to maturity (n) =20
interest rate (i) 8%
Bond price formula = Coupon amount * (1 - (1/(1+i)^n)/i + face value/(1+i)^n
(90*(1-(1/(1+8%)^20))/8%) + (1000/(1+8%)^20)
=1098.181474
So bond S price is $1098.18
Price of Bond L
face value =1000
annual coupon amout =1000*9% =90
years to maturity (n) =1
interest rate (i) 8%
Bond price formula = Coupon amount * (1 - (1/(1+i)^n)/i + face value/(1+i)^n
(90*(1-(1/(1+8%)^1))/8%) + (1000/(1+8%)^1)
=1009.259259
So bond L price is $1009.26
C. if the going interest rate is 14%
Price of Bond S
face value =1000
annual coupon amout =1000*9% =90
years to maturity (n) =20
interest rate (i) 14%
Bond price formula = Coupon amount * (1 - (1/(1+i)^n)/i + face value/(1+i)^n
(90*(1-(1/(1+14%)^20))/14%) + (1000/(1+14%)^20)
=668.8434724
So bond S price is $668.84
Price of Bond L
face value =1000
annual coupon amout =1000*9% =90
years to maturity (n) =1
interest rate (i) 14%
Bond price formula = Coupon amount * (1 - (1/(1+i)^n)/i + face value/(1+i)^n
(90*(1-(1/(1+14%)^1))/14%) + (1000/(1+14%)^1)
=956.1403509
So bond L price is $956.14