Financial Concepts

Portfolio Theory, CAPM Homework

Homework Exercise 8

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For this exercise, you might want to copy and paste the table above into Excel and then do all your calculations on that spreadsheet.

1) Calculate the expected returns for Asset A, Asset B and the Market (use Average function in Excel)

Asset A =

Asset B =

Market =

2) Calculate the standard deviation of returns,?, for each asset (use STDEVP function)

Asset A =

Asset B =

Market =

3) Calculate the correlation,?, between Asset A and Asset B (use CORREL function in Excel)

? =

4) Calculate the expected returns from the following portfolios:

Use the following formula to calculate the portfolio standard deviation

?_P =? (w_A?_A)² + (w_B?_B)² +(2 w_A w_B?_A?_B ?_(A,B))

=(((w_A*?_A) ^ 2) + ((w_B *?_B)^2)+(2 *w_A* w_B *?_A *?_B *?_(A,B))))^.5

Where w_A andw_Bare the % of assets in Asset A and B respectively

?_A and?_B are the respective standard deviations of return and

?_(A,B)).is the correlation of returns between asset A and B

5) Using Portfolio Expected Returns on the Y axis and Portfolio Standard Deviation in the X axis, draw the efficient frontier for possible portfolio combinations of Asset A and B. (include 100% A and 100% B as two possibilities). Hint: Use the Excel Chart Wizard and select the XY(scatter) plot option)

6) Calculate Beta for Asset A (relative to the Market) and Asset B relative to the Market) (use SLOPE function)

Beta for Asset A =

Beta for Asset B =

7) Assume that for next year the Risk Free Rate is expected to be 2% and that the overall Market will realize a return of 12%. Using the CAPM / SML methodology, calculate the required returns for Asset A and Asset B.

Required Return for Asset A =

Required Return for Asset B =