Question

In: Finance

Given the following information, please estimate the expected return and risk for the portfolio Security Security...

Given the following information, please estimate the expected return and risk for the portfolio

Security

Security 1

Security 2

Security 3

E(R)

0.015

0.02

0.05

Weight

33%

33%

34%

Security 1

Security 2

Security 3

Security 1

Var=0.05

Corr=0.5

Corr=0.3

Security 2

Var=0.06

Corr=0.6

Security 3

Var=0.07

Solutions

Expert Solution

Weight of security 1 = W(1) = 33%, Weight of security 2 = W(2) = 33% and Weight of security 3 = W(3) = 34%

Expected Return Security 1 =E(1) =0.015, Expected Return Security 2 =E(2) =0.02, Expected Return Security 3 =E(3) =0.05

Expected return on Portfolio = W(1) x E(1) + W(2) x E(2) + W(3) x E(3)

= 33% x 0.015 + 33% x 0.02 + 34% x 0.05 = 0.00495 + 0.00660 + 0.017000 = 0.0285500 = 2.855%

Variance of security 1 = V(1) = 0.05

S(1) = 0.223606

Variance of security 2 = V(2) = 0.06

S(2) = 0.244948

Variance of security 3 = V(3) = 0.07

S(3) = 0.264575

Correlation between security 1 and security 2 = Corr(1,2) = 0.5

Correlation between security 2 and security 3 = Corr(2,3) = 0.6

Correlation between security 1 and security 3 = Corr(1,3) = 0.3

Variance of Portfolio = V(P) = W(1)2 x V(1) + W(2)2 x V(2) + W(3)2 x V(3) + 2 x W(1) x W(2) x S(1) x S(2) x Corr(1,2) + 2 x W(2) x W(3) x S(2) x S(3) x Corr(2,3) + 2 x W(1) x W(3) x S(1) x S(3) x Corr(1,3)

= (33%)2 x 0.05 + (33%)2 x 0.06 + (34%)2 x 0.07 + 2 x 33% x 33% x 0.223606 x 0.244948 x 0.5 + 2 x 33% x 34% x 0.244948 x 0.264575 x 0.6 + 2 x 33% x 34% x 0.223606 x 0.264575 x 0.3

= 0.0054450 + 0.0065340 + 0.0080920 + 0.0059646 + 0.0087256 + 0.0039826 = 0.0387438

Risk of Portfolio = Standard deviation of portfolio = S(P)

S(P) = 0.1968344 = 19.68344% = 19.68%


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