You have been assigned to examine the following funds with their respective probabilities:
Stock Fund X |
Stock Fund Y |
||
Scenario |
Probability |
Rate of Return (%) |
Rate of Return (%) |
Severe recession |
0.05 |
-5 |
11.2 |
Mild recession |
0.15 |
-1.6 |
3.3 |
Normal growth |
0.55 |
7.7 |
0.5 |
Boom |
0.25 |
16.3 |
-4.1 |
Calculate the correlation coefficient of a portfolio that invests 55% on stock fund X and 45% on stock fund Y.
Expected Return in severe
recession=55%*-5%+45%*11.2%=2.29%
Expected Return in mild recession=55%*-1.6%+45%*3.3%=0.605%
Expected Return in severe recession=55%*7.7%+45%*0.5%=4.46%
Expected Return in severe recession=55%*16.3%+45%*-4.1%=7.12%
Expected Return of Portfolio
=0.05*2.29%+0.15*0.605%+0.55*4.46%+0.25*7.12% =4.43825% or
4.44%
Standard Deviation of Portfolio
=((0.05*(2.29%-4.43825%)^2+0.15*(0.605%-4.43825%)^2+0.55*(4.46%-4.43825%)^2+0.25*(7.12%-4.43825%)^2)^0.5
=2.0574%
Coefficient of Portfolio =Standard Deviation of Portfolio/Expected
Return of Portfolio =2.0574%/4.43825% =0.46
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