1. Beta of security = {Covariance of (Stock, Market)}/(std deviation of mkt)^2
2. Covariance of (Stock, Market) = Correlation( Stock,Market) * Std deviation of stoc* Std deviation of market.
3. As per above formuleas Covariance of (Ralpha, Market) = 0.4*0.7*
0.2 = 0.056
And from 1 and 3 and given info in the question, Beta of Ralpha =
0.056/ (0.2)^2 = 1.4
a) Beta of Ralpha= 1.4
b) Required return of ralpha = Rf + B(Rm- Rf) = 0.05+
1.4(0.13-0.05) = 0.162 = 16.2%
c) In Equilibrium, Required Return is same as Expected Return,
Hence Expected Return on Ralpha in Equilibrium is
16.2%
4) The stock of Ralph's Restaurants has a standard deviation of 70% and has a correlation...
Stock A has a standard deviation of 20 percent and a correlation coefficient of 0.64 with market returns. The expected return of the market is 12 percent with a standard deviation of 15 percent. The risk-free rate is 5 percent. What is the beta of Stock A?
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Stock A has an expected return of 7%, a
standard deviation of expected returns of 35%, a correlation
coefficient with the market of -0.3, and a beta coefficient of
-0.5. Stock B has an expected return of 12% a standard deviation of
returns of 10%, a 0.7 correlation with the market, and a beta
coefficient of 1.0. Which security is riskier? Why?
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