QUESTION 1
HAND CALCUALTION OR SPREADSHEET ANALYSIS. For this and the next 3 questions. Please use the following data to answer the questions that follow. Calculate the covariance of Stock A and the Market. If you wish, copy over the data to Excel and use spreadsheet functions to perform the analysis. Be sure to correct for sample.
Year |
Market |
Stock A |
Stock B |
1 |
0.03 |
0.16 |
0.05 |
2 |
-0.05 |
0.20 |
0.05 |
3 |
0.01 |
0.18 |
0.05 |
4 |
-0.10 |
0.25 |
0.05 |
5 |
0.06 |
0.14 |
0.05 |
-0.0154 |
||
-0.00268 |
||
0.00415 |
||
0.00178 |
||
0.00000 |
||
None of the above |
1 points
QUESTION 2
What is the covariance of Stock B and the Market.
-0.0154 |
||
-0.00268 |
||
0.00415 |
||
0.00178 |
||
0.00000 |
||
None of the above |
1 points
QUESTION 3
What is the variance of Stock A?
-0.0154 |
||
-0.00268 |
||
0.00415 |
||
0.00178 |
||
0.00000 |
||
None of the above |
1 points
QUESTION 4
Suppose you invest 45 percent of your funds in Stock B and the rest in Stock A. Calculate the standard deviation of a portfolio of the two stocks.
0.02320 |
||
0.04219 |
||
0.00415 |
||
0.00 |
||
None of the above |
Data In Excel
1. Covariance between stock A and the Market
We will use the COVARIANCE.S function in Excel as shown below
=COVARIANCE.S(B2:B6,C2:C6) = -0.00268
Answer -> -0.00268
2. Covariance of Stock B and Market:
We will use this function in Excel: =COVARIANCE.S(B2:B6,D2:D6) = 0
3. Variance of Stock A
We will use the VAR.S function in Excel as shown below:
=VAR.S(C2:C6) = 0.00178
4. Standard deviation of the portfolio
The standard deviation of A: =STDEV.S(C2:C6) = 0.04219
Standard Deviation of B = STDEV.S(D2:D6) = 0
Covariance between A and B: =COVARIANCE.S(C2:C6, D2:D6) = 0
Weight of stock A in the portfolio = WA = 0.55, Weight of stock B in the portfolio = WB = 0.45
Variance of the portfolio is calculated using the formula:
σ2P = WA2* σ2A + WB2* σ2B + 2*WA*WB*Cov(A,B)
σA = Standard deviation of A = 0.04219
σB = Standard deviation of B = 0
Cov(A,B) = Covariance between A and B = 0
σ2P = 0.552*0.042192 + 0.452* 0+ 2*0.55*0.45*0
σ2P = 0.552*0.042192 + 0 + 0
σP = 0.55*0.04219 = 0.0232045254207019
standard deviation of a portfolio of the two stocks = 0.02320
Answer
1. -0.00268
2. 0.00000
3. 0.00178
4. 0.02320
Get Answers For Free
Most questions answered within 1 hours.