Question

In: Finance

You know the following information about the possible return offered by the two stocks, Stock X...

You know the following information about the possible return offered by the two stocks, Stock X and Stock Y next year .

scenerio| Probability Return(x) Return Y

recession| 40% -5% -6%

normal | 60%. 10%. 14%

a. Calculate the expected return and variances for stock X, Stock Y

b from risk return point of view , which stock , X or Y is better investment , why?

c what is the correlation coefficient between returns on stock X and stock Y?

d. Calculate the expected returns and standard deviation for a portfolio consisting of 40% stock X and 60% of stock Y

E. IF i investment 80% of my money in this portfolio (40% in stock X and 60% in stock Y) and 20% of money in T-bills which offers a rate of return of 2%. What is the expected return and standard deviation of my investment portfolio ?

Solutions

Expert Solution

a. Expected Return of Stock X =Probability of Recession*Return of Stock X in recession +Probability of Normal*Return of Stock X in normal =40%*-5%+60%*10% =4%
Expected Return of Stock Y =Probability of Recession*Return of Stock Y in recession +Probability of Normal*Return of Stock Y in normal =40%*-6%+60%*14% =6%
Standard Deviation of X =(40%*(-5%-4%)^2+60%*(10%-4%)^2)^0.5 =7.3485% or 7.35%
Standard Deviation of Y =(40%*(-6%-6%)^2+60%*(14%-6%)^2)^0.5 =9.7980% or 9.80%

b. Risk Return ratio of Stock X =standard Deviation/Expected Return =7.3485%/4% =1.84
Risk Return ratio of Stock Y =standard Deviation/Expected Return =9.7980%/6% =1.63
Lower the risk return ratio better is the stock. Stock Y is better.

c. Covariance  of Portfolio =Probability of Recession*(Return of X in Recession-Expected Return of X)*(Return of Y in Recession-Expected Return of Y)+Probability of Normal*(Return of X in Normal -Expected Return of X)*(Return of Y in normal -Expected Return of Y) =40%*(-5%-4%)*(-6%-6%)+60%*(10%-4%)*(14%-6%)=0.0072
Correlation coefficient =Covariance  of Portfolio/(Standard Deviation of X*Standard Deviation of Y) =0.0072/(7.3485%*0.7980%) =1

d. Expected Return in recession =Weight of Stock X*Return of X+weight of Stock Y*Return of Stock Y
=40%*-5%+60%*-6% =-5.60%
Expected Return in Normal =Weight of Stock X*Return of X+weight of Stock Y*Return of Stock Y
=40%*10%+60%*14% =12.40%
Expected Return of Portfolio =40%*-5.60%+60%*12.40% =5.20%
Standard Deviation of Portfolio =(40%*(-5.60%-5.20%)^2+60%*12.40%-5.20%)^2)^0.5 =2.70656% or 2.71%

e. Expected if invested in both portfolio and risk free asset =Weight of Portfolio*Expected Return of Portfolio+Weight of Risk free rate*Expected Return*Risk free rate =80%*5.20%+20%*2% =4.56%

Standard Deviation of Risk free asset =0%
Correlation between portfolio and risk fee asset =0
Standard Deviation of Portfolio and risk free asset =((Weight of Portfolio*Standard Deviation of Portfolio)^2+
(Weight of Portfolio*Standard Deviation of Risk free rate)^2)^0.5 =((80%*2.70656%)^2)^0.5 =2.17%


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