You are limited to investing in only two different bond issues. Bad Wolf Industries has a duration of 3.53 years and is quoted at 101.710 and Hypothetical Resources has a duration of 8.44 years and is quoted at 106.163. Both bonds are priced to yield 7.213% to maturity and the duration of the liability is 6.17 years. To immunize the portfolio you need to invest
________ % in Bad Wolf
and ________ % in Hypothetical Resources
Particulars | Weight | Duration | Weighted Duration |
Bad Wolf Industries | X | 3.53 | 3.53 X |
Hypothetical resources | ( 1 - X) | 8.44 | 8.44 ( 1 - X) |
Weighted Duration | -4.91 X + 8.44 |
Let X be the weight in Bad Wolf Industries & ( 1 - X) in
Hypothetical resources
Weighted Avg Duration ( Required Duration ) = 6.17
Thus -4.91 X + 8.44 = 6.17
-4.91 X + 8.44 = 6.17
-4.91 X = 6.17 - 8.44
-4.91 X = -2.27
X = 0.4623
1 - X = 1 - 0.4623
= 0.5377
Thus weight in Bad Wolf Industries is 46.23 %
Thus weight in Hypothetical resources is 53.77 %
Pls comment, if any further assistance is
required.
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