An Apple annual coupon bond has a coupon rate of 6.9%, face value of $1,000, and 4 years to maturity. If its yield to maturity is 6.9%, what is its Modified Duration? Answer in years, rounded to three decimal places.
Period | Cash Flow | Discounting factor | PV Cash Flow | Duration Calc |
0 | ($1,000.00) | =(1+YTM/number of coupon payments in the year)^period | =cashflow/discounting factor | =PV cashflow*period |
1 | 69.00 | 1.07 | 64.55 | 64.55 |
2 | 69.00 | 1.14 | 60.38 | 120.76 |
3 | 69.00 | 1.22 | 56.48 | 169.45 |
4 | 1,069.00 | 1.31 | 818.59 | 3,274.36 |
Total | 3,629.12 |
Macaulay duration =(∑ Duration calc)/(bond price*number of coupon per year) |
=3629.12/(1000*1) |
=3.629118 |
Modified duration = Macaulay duration/(1+YTM) |
=3.63/(1+0.069) |
=3.395 |
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