In: Finance
Stock A has an expected return of 12%, a standard deviation of 24% on its returns, and a beta of 1.2. Stock B has an expected return of 15%, a standard deviation of 30% on its returns, and a beta of 1.5. The correlation between the two stocks is 0.8. If we invested $30,000 in Stock A and $20,000 in Stock B, what is the beta of our portfolio?
Select one:
a. 1.03
b. 1.25
c. 1.32
d. 1.40
e. 1.56
Using the given information we can calculate the beta of the portfolio as follows
Stock | Expected Return | Standard Deviation | Beta |
Stock A | 15% | 30% | 1.2 |
Stock B | 12% | 24% | 1.5 |
As the Portfolio has Stock A and B both, we can prepare the Portfolio Table as below
Stock | Invested Amount |
Weighted Average of Total Investment (Invested Amount / Total Investment) |
Beta of Stocks |
Weighted Beta (Weighted Average * Beta) |
Stock A | $ 30,000 | (30,000 / 50,000) = 60% | 1.2 | (60% * 1.2) = 0.72 |
Stock B | $ 20,000 | (20,000 / 50,000) = 40% | 1.5 | (40% * 1.5) = 0.60 |
Total | $ 50,000 | 100% |
Beta of the Portfolio = Weighted Beta of Stock A + Weighted Beta of Atock B
= 0.72 + 0.60
= 1.32
So, the beta of Portfolio if $ 30,000 is invested in Stock A and $ 20,000 is invested in Stock B comes out to be 1.32. Therefore the correct answer is option (c)
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