Asked by Mason Rogers on Jul 07, 2024

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You have a 25-year maturity, 10% coupon, 10% yield bond with a duration of 10 years and a convexity of 135.5. If the interest rate were to fall 125 basis points, your predicted new price for the bond (including convexity) is ________.

A) $1,098.45
B) $1,104.56
C) $1,113.41
D) $1,124.22

Convexity

An indicator of how the bond price's sensitivity to interest rate changes varies with the bond's yield, reflecting adjustments in the bond's duration.

Basis Points

A unit of measure used in finance to describe the percentage change in the value or rate of a financial instrument.

  • Master the idea of convexity and its significance for alterations in bond pricing.
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Arthur TompkinsJul 08, 2024
Final Answer :
D
Explanation :
ΔP/P = −D*(Δy) + 0.5(Convexity)(Δy)2
D* = D/(1 + y) = 10/1.1 = 9.091
−D*(Δy) = −9.091 × −1.25% = 11.36%
0.5(Convexity)(Δy)2 = 0.5(135.5)(−1.25%)2 = 1.0586%
ΔP/P = = −D*(Δy) + 0.5(Convexity)(Δy)2 = 11.36% + 1.0586% = 12.42%
Since the bond's coupon rate was equal to its original yield to maturity, the original price was $1,000.
New price = $1,000 × 1.12422 = $1,124.22