Question

In: Finance

The expected return of Monty is 19.0 percent, and the expected return of Flounder is 24.0...


The expected return of Monty is 19.0 percent, and the expected return of Flounder is 24.0 percent. Their standard deviations are 13.0 percent and 21.0 percent, respectively. If a portfolio is composed of 40 percent Monty and the remainder Flounder, calculate the expected return and the standard deviation of the portfolio, given a correlation coefficient between Monty and Flounder of 0.35. (Round intermediate calculations to 4 decimal places, e.g. 31.2125 and final answers to 2 decimal places, e.g. 15.25%.)

The expected return %
Standard deviation of portfolio %


Calculate the standard deviation if the correlation coefficient is −0.35. (Do not round intermediate calculations. Round answer to 2 decimal places, e.g. 15.25%.)

Standard deviation of portfolio %

Solutions

Expert Solution

Question a:

E(r)m = Expected Return on Monty = 19%

E(r)f = Expected Return on Flounder = 24%

Wm = Amount invested in Monty = 40%

Wf = Amount invested in Flounder = 60%

Expected return = [E(r)m * Wm] + [E(r)f * Wf]

= [19% * 40%] + [24% * 60%]

= 7.6% + 14.4%

= 22%

Therefore, The expected Return is 22%

Question b:

σm = Standard Deviation of Monty = 13%

σf = Standard Deviation of Flounder = 21%

Wm = Amount invested in Monty = 40%

Wf = Amount invested in Flounder = 60%

Cor(m,f) = Correlation coefficient = 0.35

Variance of Portfolio = [(Wm)^2 * (σm)^2] + [(Wf)^2 * (σf)^2] + [2*Cor(m,f) * Wm* σm * Wf * σf]

= [(40%)^2 * (13%)^2] + [(60%)^2 * (21%)^2] + [2 * 0.35 * 40% * 13% * 60% * 21%]

= [0.16 * 0.0169] + [0.36 * 0.0441] + 0.0045864

= 0.002704 + 0.015876 + 0.0045864

= 0.0231664

Standard Deviaiton of Portfolio = Square root of Variance

= (0.0231664)^(1/2)

= 0.152205125

= 15.22%

Therefore, Standard deviation of portfolio is 15.22%

Question c:

σm = Standard Deviation of Monty = 13%

σf = Standard Deviation of Flounder = 21%

Wm = Amount invested in Monty = 40%

Wf = Amount invested in Flounder = 60%

Cor(m,f) = Correlation coefficient = -0.35

Variance of Portfolio = [(Wm)^2 * (σm)^2] + [(Wf)^2 * (σf)^2] + [2*Cor(m,f) * Wm* σm * Wf * σf]

= [(40%)^2 * (13%)^2] + [(60%)^2 * (21%)^2] + [2 * -0.35 * 40% * 13% * 60% * 21%]

= [0.16 * 0.0169] + [0.36 * 0.0441] - 0.0045864

= 0.002704 + 0.015876 - 0.0045864

= 0.0139936

Standard Deviaiton of Portfolio = Square root of Variance

= (0.0139936)^(1/2)

= 0.118294548

= 11.83%

Therefore, Standard deviation of portfolio is 11.83%


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