Final answer:
To calculate the approximate modified duration, you can follow these steps: 1. Calculate the bond's present value. 2. Calculate the bond's future cash flows. 3. Calculate the bond's Macaulay duration. 4. Calculate the modified duration.
Step-by-step explanation:
Modified duration is a measure of the sensitivity of a bond's price to changes in interest rates. It helps investors understand how much a bond's price will change for a given change in yield to maturity. To calculate the approximate modified duration, you can follow these steps:
- Calculate the bond's present value by multiplying the bond's yield by its price.
- Calculate the bond's future cash flows by multiplying the bond's yield by its price and adding the coupon payments.
- Calculate the bond's Macaulay duration by dividing the sum of the present value of each cash flow by the bond's price.
- Calculate the modified duration by dividing the Macaulay duration by (1 + yield).