Problem 11-17
You are managing a portfolio of $1.7 million. Your target duration is 15 years, and you can choose from two bonds: a zero-coupon bond with maturity 4 years, and a perpetuity, each currently yielding 4%. |
Required: |
(a) |
How much of each bond will you hold in your portfolio? (Round your answers to 4 decimal places.) |
Zero-coupon bond | |
Perpetuity bond |
(b) |
How will these fractions change next year if target duration is now fourteen years? (Round your answers to 4 decimal places.) |
Zero-coupon bond | |
Perpetuity bond |
Duration of Zero Coupon Bond = Time to Maturity
Duration of Zero Coupon Bond = 4 years
Duration of Perpetuity = (1 + i)/i
Duration of Perpetuity = 1.04/0.04
Duration of Perpetuity = 26 years
a.
Target Duration = 15 years
So,
15 = w(4) + (1 - w)26
w = 0.50
So,
Value of Zero Coupon Bond = $0.85 million
Value of Perpetual Bond = $0.85 million
b.
After 1 year
Duration of Zero Coupon Bond = 3 years
So,
14 = w(3) + (1 - w)26
w = 0.5217
Value of Zero Coupon Bond = 0.5217(1.7) = $0.887 million
Value of Perpetual Bond = 1.7 - 0.887 = $0.813 million
Problem 11-17 You are managing a portfolio of $1.7 million. Your target duration is 15 years,...
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