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CFA Level I · CFA Level I Exam · Fixed-Income Bond Valuation: Prices and Yields

Two bonds have the same maturity and the same yield to maturity, but Bond X has a lower coupon rate than Bond Y. If yields on both fall by 50 basis points, the percentage price increase is most likely:

The percentage price increase is larger for Bond X. With the same maturity and yield, a lower coupon puts more of the value in the final principal payment, which raises interest rate sensitivity relative to the higher coupon bond.

  1. Aequal for both bonds
  2. Blarger for Bond XCorrect
  3. Clarger for Bond Y

Explanation

For the same maturity and yield, a lower coupon bond has more of its value in the distant principal payment, giving longer duration and greater convexity. Its percentage price change for a given yield change is therefore larger. Bond Y's higher coupons shorten its effective cash-flow timing.

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