Asked Dec 3, 2019

You invest in a portfolio of 5 stocks with an equal investment in each one. The betas of the 5 stocks are as follows: .8, -1.3, .95, 1.2 and 1.4. The risk-free return is 3% and the market return is 7%.

A. Compute the beta of the portfolio.
B. Compute the required return of the portfolio.


Expert Answer

Step 1


Number of Stocks = 5

Weight of Each Stock (W) = 1 ÷ 5 = 0.2

Beta1 = 0.8

Beta2 = -1.3

Beta3 = 0.95

Beta4 = 1.2

Beta5 = 1.4


Calculation of Beta of the Portfolio is as follows:


Image Transcriptionclose

Beta (W x Beta,) +(W x Beta,)+ (W x Beta)+(Wx Beta)+ (W x Beta) =(0.2 x0.8)+(0.2x(-1.3)+(0.2x 0.95) +(0.2 x 1.2) +(0.2x1.4) 0.16+(-0.26)+ 0.19+0.24+0.28 = 0.61

Step 2


Beta = 0.61

Risk-Free Return = 3%

Market Return = 7%


Calculation of the req...


Image Transcriptionclose

Required Retum =Risk-Free Retum Beta x (Market Return - Risk-Free Retum) 3%+[0.61x (7%-3%)] =0.03+[0.61x 4%] =0.030.0244 0.0544 or 5.44%


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