CHAPTER 27 – 7
To calculate the HPY, we need to find the interest rate that equates the price we paid for the
bond with the cash flows we received. The cash flows we received were $70 each year for two
years and the price of the bond when we sold it. The equation to find our HPY is:
Solving for R, we get:
The realized HPY is greater than the expected YTM when the bond was bought because interest
rates dropped by 1 percent; bond prices rise when yields fall.
34. The price of any bond (or financial instrument) is the PV of the future cash flows. Even though Bond
Notice that for the coupon payments of $1,400, we found the PVA for the coupon payments and then
discounted the lump sum back to today.
Bond N is a zero coupon bond with a $20,000 par value, therefore, the price of the bond is the PV of
the par, or:
35. To calculate this, we need to set up an equation with the callable bond equal to a weighted average of
the noncallable bonds. We will invest X percent of our money in the first noncallable bond, which
means our investment in Bond 3 (the other noncallable bond) will be (1 – X). The equation is:
C2 = C1 X + C3(1 – X)
So, we invest about 68 percent of our money in Bond 1, and about 32 percent in Bond 3. This
combination of bonds should have the same value as the callable bond, excluding the value of the
call. So:
P2= .68182P1 + .31819P3
The call value is the difference between this implied bond value and the actual bond price. So, the
call value is: