Stock |
A |
B |
C |
D |
E |
Amount |
$1,000,000 |
675,000 |
750,000 |
500,000 |
75,000 |
Beta |
1.2 |
0.5 |
1.4 |
0.75 |
-1.3 |
Assume the portfolio manager has invested $3 million in the following common stocks, what is the beta of the portfolio?
A.
0.96 |
|
B.
1.02 |
|
C.
0.51 |
|
D.
1.03 |
answers C is incorrect. which one is correct and why?
Answer - Option (a) = 0.96
Calculation :-
Total Amount Invested = $3million or $3000000
Step 1 - Find out the weights of each stock :-
Weight of Stock A = $1000000 / $3000000 = 0.333333
Weight of Stock B = $675000 / $3000000 = 0.225
Weight of Stock C = $750000 / $3000000 = 0.25
Weight of Stock D = $500000 / $3000000 = 0.166667
Weight of Stock E = $75000 / $3000000 = 0.025
Step 2 - Calculate Weighted Average of Beta :-
Beta A = 0.333333 x 1.2 = 0.40
Beta B = 0.225 x 0.5 = 0.1125
Beta C = 0.25 x 1.4 = 0.35
Beta D = 0.166667 x 0.75 = 0.125
Beta E = 0.025 x -1.3 = (-)0.0325
Step 3 - Calculate Beta of the Portfolio by simply adding all the Beta's calculated in Step 2
Beta of the Portfolio = 0.40 + 0.1125 + 0.35 + 0.125 + (-)0.0325
Beta of the Portfolio = 0.955 or 0.96
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