Respuesta :
Answer 1:
The CAPM model shows that the points (return and stdv) which are below the capital market line are in infeasible reason. This means no investor, be it risk-taking or risk-neutral, won't invest in such portfolios.
If a risk free asset is giving a return of 5%, then no one would go for an asset with 30% stdv (risky asset) to get 4% return. Hence, Linda is right.
Answer 2:
Out of 35000 of available funds, 25000 (71.43%) are invested in Walmart and 28.57% are invested in tesla.
Expected return = W1*R1 +W2*R2 where W1 and W2 are the weights and R1 and R2 are the expected returns from each stocks.
hence, the expected return of the portfolio = 0.7143*5% + 0.2857*20%= 9.2858%
portfolio variance = (W1S1)^2 + (W2S2)^2 + 2*W1W2S1S2Cor, where S1 and S2 are stdv of portfolio and Cor is the correlation between these stocks
stdv of portfolio
=( (0.7128*0.12)^2 + (0.2857*0.35)^2 + 2*0.7128*0.2857*0.12*0.35*0.2)^0.5 = 14.4%
If he wants to retain the same stdv, we need to find corresponding expected return on Capital market line, which is 12% return.
12% >= W1'*5% + W2'*20%
W1'= 1- W2'
12% = 5% - 5%*W2' +W2'*20%
W2 =
0.466 = 16333
Hence, he should invest 16333 in Tesla and remaining in Walmart
Answer:
Explanation:
If a risk free asset is giving a return of 5%, then no one would go for an asset with 30% standard deviation (risky asset) to get 4% return. Hence, Linda is right.
2. Out of 35000 of available funds, 25000 (71.43%) are invested in Walmart and 28.57% are invested in tesla.
Expected return = W1*R1 +W2*R2 where W1 and W2 are the weights and R1 and R2 are the expected returns from each stocks.
hence, the expected return of the portfolio = 0.7143*5% + 0.2857*20%= 9.2858%
portfolio variance = (W1S1)^2 + (W2S2)^2 + 2*W1W2S1S2Cor, where S1 and S2 are standard deviation of portfolio and Cor is the correlation between these stocks
standard deviation of portfolio =( (0.7128*0.12)^2 + (0.2857*0.35)^2 + 2*0.7128*0.2857*0.12*0.35*0.2)^0.5 = 14.4%
12% >= W1'*5% + W2'*20%
W1'= 1- W2'
12% = 5% - 5%*W2' +W2'*20%
W2 = 0.466 = 16333
Hence, he should invest 16333 in Tesla and remaining in Walmart
kindly check the attached image below for the graphical presentation of the explanation to the question