Question

In: Finance

1. Suppose there are two assets, Asset 1 and Asset 2. You are given the following...

1.

Suppose there are two assets, Asset 1 and Asset 2. You are given the following information about the two assets.

E(R1)   = 0.12                       E(s1)   = 0.05

E(R2)   = 0.20                       E(s2)   = 0.08

  1. Calculate the expected returns and expected standard deviations of a two-stock portfolio in which Stock 1 has a weight of 70 percent under the following conditions.

  1. r1,2    =    1.00
  2. r1,2    =   0.50
  3. r1,2    =   0.00
  4. r1,2    = –0.50
  5. r1,2    = –1.00

Show your calculations.

  1. Which of these portfolios has the most risk? Why?

Solutions

Expert Solution

The Expected return of the portfolio of 2 ASSETS is calculated as

Exp return = w1*r1 +w2*r2

Expected return on the portfolio = w1*r1 +w2*r2

Where the weights are given

W1=0.7

So W2 = (1-w1)

W2= 0.3

Standard Deviation of a portfolio of 2 Assets

Std dev = ((w1^2)(sd1)^2) + (W2^2 sd2^2) + (2*w1*w2*sd1*sd2*correlation ) ) ^ 1/2

A    Corell = 1.0

Expected return = ( 0.7*12) +(0.3 * 20) = 14.4%

Standard Deviation

= (( 0.7^2 * 0.05^2) +( 0.3^2 * 0.08^2)+ ( 2* 0.05*0.08*0.7*0.3*1)) ^ 1/2

= 0.059 or 5.9%

Return %

Std Dev

Weight

Correlation

Asset 1

12

0.05

0.7

1

Asset 2

20

0.08

0.3

Expected Return

14.400

Variance

0.003481

Std Dev

0.059

b   Corell = 0.50

Expected return = ( 0.7*12) +(0.3 * 20) = 14.4%

Standard Deviation

= (( 0.7^2 * 0.05^2) +( 0.3^2 * 0.08^2)+ ( 2* 0.05*0.08*0.7*0.3*0.50)) ^ 1/2

= 0.051390661 or 5.13%

Return %

Std Dev

Weight

Correlation

Asset 1

12

0.05

0.7

0.5

Asset 2

20

0.08

0.3

Expected Return

14.400

Variance

0.002641

Std Dev

0.051390661

C Corell = 00

Expected return = ( 0.7*12) +(0.3 * 20) = 14.4%

Standard Deviation

= (( 0.7^2 * 0.05^2) +( 0.3^2 * 0.08^2)+ ( 2* 0.05*0.08*0.7*0.3*0)) ^ 1/2

= 0.04243819

Return %

Std Dev

Weight

Correlation

Asset 1

12

0.05

0.7

0

Asset 2

20

0.08

0.3

Expected Return

14.400

Variance

0.001801

Std Dev

0.04243819

D Corell = -0.5

Expected return = ( 0.7*12) +(0.3 * 20) = 14.4%

Standard Deviation

= (( 0.7^2 * 0.05^2) +( 0.3^2 * 0.08^2)+ ( 2* 0.05*0.08*0.7*0.3*0)) ^ 1/2

= 0.031

Return %

Std Dev

Weight

Correlation

Asset 1

12

0.05

0.7

-0.5

Asset 2

20

0.08

0.3

Expected Return

14.400

Variance

0.000961

Std Dev

0.031

E Corell = -1.00

Expected return = ( 0.7*12) +(0.3 * 20) = 14.4%

Standard Deviation

= (( 0.7^2 * 0.05^2) +( 0.3^2 * 0.08^2)+ ( 2* 0.05*0.08*0.7*0.3*0)) ^ 1/2

= 0.011

Return %

Std Dev

Weight

Correlation

Asset 1

12

0.05

0.7

-1

Asset 2

20

0.08

0.3

Expected Return

14.400

Variance

0.000121

Std Dev

0.011

Part II

The most riskiest or risky case is CASE 1 with Corell with Corell(1,2) = 1

This is because the portfolio having the highest standard deviation is the most risky portfolio

Thanks


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