In: Finance
Problem 6-06
Given:
E(R1) = 0.13 | |
E(R2) = 0.18 | |
E(σ1) = 0.04 | |
E(σ2) = 0.06 |
Calculate the expected returns and expected standard deviations of a two-stock portfolio having a correlation coefficient of 0.75 under the conditions given below. Do not round intermediate calculations. Round your answers to four decimal places.
Expected return of a two-stock portfolio:
Expected standard deviation of a two-stock portfolio:
Expected return of a two-stock portfolio:
Expected standard deviation of a two-stock portfolio:
Expected return of a two-stock portfolio:
Expected standard deviation of a two-stock portfolio:
Expected return of a two-stock portfolio:
Expected standard deviation of a two-stock portfolio:
Expected return of a two-stock portfolio:
Expected standard deviation of a two-stock portfolio:
E(R1)=0.13
E(R2)=0.18
E(σ1) = 0.04
E(σ2) = 0.06
Correlation =0.75
a) W1 =1; W2 =0
Expected Return =Weight of Stock 1*E(R1)+Weight of Stock 2*E(R2)
=1*0.13+0*0.18 =0.13
Standard Deviation =((Weight of
1*E(σ1))^2+(Weight of
2*E(σ2))^2+2*Weight of 1*Weight of
2*E(σ1)*E(σ2)*r1,2)^0.5
=((1*0.04)^2+(0*0.06)^2+2*1*0*0.04*0.06*0.75)^0.5=0.0400
b) W1 =0.80; W2 =0.20
Expected Return =Weight of Stock 1*E(R1)+Weight of Stock 2*E(R2)
=0.80*0.13+0.20*0.18 =0.14
Standard Deviation =((Weight of
1*E(σ1))^2+(Weight of
2*E(σ2))^2+2*Weight of 1*Weight of
2*E(σ1)*E(σ2)*r1,2)^0.5
=((0.80*0.04)^2+(0.20*0.06)^2+2*0.8*0.2*0.04*0.06*0.75)^0.5=0.0418
c) W1 =0.55; W2 =0.45
Expected Return =Weight of Stock 1*E(R1)+Weight of Stock 2*E(R2)
=0.55*0.13+0.45*0.18 =0.1525 or 0.153
Standard Deviation =((Weight of
1*E(σ1))^2+(Weight of
2*E(σ2))^2+2*Weight of 1*Weight of
2*E(σ1)*E(σ2)*r1,2)^0.5
=((0.55*0.04)^2+(0.45*0.06)^2+2*0.55*0.45*0.04*0.06*0.75)^0.5=0.0459
d) W1 =0.30; W2 =0.70
Expected Return =Weight of Stock 1*E(R1)+Weight of Stock 2*E(R2)
=0.30*0.13+0.70*0.18 =0.165
Standard Deviation =((Weight of
1*E(σ1))^2+(Weight of
2*E(σ2))^2+2*Weight of 1*Weight of
2*E(σ1)*E(σ2)*r1,2)^0.5
=((0.3*0.04)^2+(0.7*0.06)^2+2*0.3*0.7*0.04*0.06*0.75)^0.5=0.0516
e) W1 =0.05; W2 =0.95
Expected Return =Weight of Stock 1*E(R1)+Weight of Stock 2*E(R2)
=0.05*0.13+0.95*0.18 =0.1775 or 0.178
Standard Deviation =((Weight of
1*E(σ1))^2+(Weight of
2*E(σ2))^2+2*Weight of 1*Weight of
2*E(σ1)*E(σ2)*r1,2)^0.5
=((0.05*0.04)^2+(0.95*0.06)^2+2*0.05*0.95*0.04*0.06*0.75)^0.5=0.0585