Question: In the context of a one factor APT model, you at the following three portfolios: Portfolio Expected return Factor sensitivity A 4 1.33 B 13
In the context of a one factor APT model, you at the following three portfolios:
| Portfolio | Expected return | Factor sensitivity |
| A | 4 | 1.33 |
| B | 13 | 1.32 |
| C | 8 | 0.66 |
You wish to construct a composite portfolio from B and C that has the same factor sensitivity as portfolio A. What would be the weight of portfolio B in your asset mix?
Enter weight as a percentage.
Hint: remember that factor sensitivity of a portfolio is a linear weighted average of the sensitivities of its components. And that all weights have to add up to 1 (100%).
The answer is 101.52.
Please show how to get to that in excel.
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