A 8-year maturity zero-coupon bond selling at a yield to maturity of 9% (effective annual yield) has convexity of 155.1 and modified duration of 7.06 years. A 30-year maturity 5% coupon bond making annual coupon payments also selling at a yield to maturity of 9% has nearly identical duration—7.04 years—but considerably higher convexity of 244.8.a. Suppose the yield to maturity on both bonds increases to 10%. What will be the actual percentage capital loss/gain on each bond? What percentage capital loss/gain would be predicted by the duration-with-convexity rule? (Input all amounts as positive values. Do not round intermediate calculations. Round your answers to 2 decimal places. Omit the "%" sign in your response.)b. Suppose the yield to maturity on both bonds decreases to 8%. What will be the actual percentage capital loss/gain on each bond? What percentage capital loss/gain would be predicted by the duration-with-convexity rule? (Input all amounts as positive values. Do not round intermediate calculations. Round your answers to 2 decimal places. Omit the "%" sign in your response.)

Explanation:

                    Zero            Coupon

N              8                      30

PMT      0                       5

YTM       9%                9%

PV (at 9%)      $50.19        $58.91

PV (at 10%)$46.65        $52.87

Actual Loss-7.05%        -10.25%

PV (at 8%)$54.03        $66.23

Actual Gain   7.65%        12.43%

Duration           7.06         7.04

Convexity155.1         244.8

Predicted Loss   -6.28%-5.82%

Predicted Gain   7.84%          8.26%

As the yield increases, the bond prices fall and vice versa. Hence, there will be a loss when yields rise and a gain when yields fall.

In order to calculate the actual gains and losses, we need to find the bond prices at yields 8%, 9% and 10% using PV formula. PV(rate, nper, pmt, fv, 0)

Predicted loss and gain can be calculated using following equation

% Change in bond price = - Duration x (change in yield) + 1/2 x Convexity x (change in yield)^2

When YTM = 10%, change in yield = +1% and when YTM = 8%, change in yield = -1%

all of them make sense but, i would have to say ask someone who has been there/or lives there, and/or read recent newspapers from that city.

hope this !