Consider the following table, which gives a security analyst's
expected return on two stocks for two particular market
returns:
Market Return | Aggressive Stock | Defensive Stock | |||
7 | % | 3.7 | % | 5.5 | % |
20 | 30 | 14 | |||
a. What are the betas of the two stocks?
(Round your answers to 2 decimal places.)
b. What is the expected rate of return on each
stock if the market return is equally likely to be 7% or 20%?
(Round your answers to 2 decimal
places.)
c. If the T-bill rate is 8%, and the market return
is equally likely to be 7% or 20%, what are the alphas of the two
stocks? (Negative values should be indicated by a minus
sign. Do not round intermediate calculations. Round your answers to
2 decimal places.)
(a)
The Betas of two stocks:
Aggressive Stock = 30-3.7/20-7 = 2.02
Defensive Stock = 14-5.5/20-7 = 0.65
(b)
Expected returns of the two stocks:
Aggressive Stock = 0.5*3.7%+0.5*30% = 16.85%
Defensive Stock = 0.5*5.5%+0.5*14% = 9.75%
(c)
Expected return of market portfolio = 0.5*20%+0.5*7% = 13.5%
Therefore, market risk premium is 13.5% - 8% = 5.5%
Therefore, SML is, required return = 8% + β 5.5%
Rs = α + β Rm
For Aggressive Stock:
16.85 = α+2.02*13.5
α = -10.42%
For Defensive Stock:
9.75 = α+0.65*13.5
α= 0.975%
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