In: Finance
A government bond currently carries a yield to maturity of 8 percent and market price of $1,080. If the bond promises to pay $100 in interest annually for five years, what is its current duration?
Market price = | 1080 | |||
Annual interest = | 100 | |||
Time = | 5 Years | |||
YTM = | 8% or | 0.08 | ||
Duration is measurement of sensitivity of bond's price in regard to change in interest rate. Higher the duration, higher the sensitivity of bond and vice versa. | ||||
Duration formula = Present Value of Weighted cash flows / Current Market price | ||||
Period | Cash flow | Weighted Cash flows | P.V. F. @ 8% | Present Value of Weighted cash flows |
(Period * Cash flows) | (Weighted cash flows * P.V.F.) | |||
1 | 100 | 100 | 0.925925926 | 92.59259259 |
2 | 100 | 200 | 0.85733882 | 171.4677641 |
3 | 100 | 300 | 0.793832241 | 238.1496723 |
4 | 100 | 400 | 0.735029853 | 294.0119411 |
5 | 1100 | 5500 | 0.680583197 | 3743.207584 |
___________________ | ||||
4539.429554 | ||||
___________________ | ||||
Duration = | 4539.429554 | /1080 | ||
Duration = | 4.203175513 | |||
So, Current duration of bond is 4.20 years | ||||
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