Texts: Eileen holds a $7,500 portfolio that consists of four stocks. Her investment in each stock, as well as each stock's beta, is listed in the following table:
Stock Investment Beta Standard Deviation
Andalusian Limited (AL) $2,625 0.90 9.00%
Three Waters Co. (TWC) $1,500 1.90 11.00%
Kulatsu Motors Co. (KMC) $1,125 1.10 18.00%
Mainway Toys Co. (MTC) $2,250 0.30 28.50%
Suppose all stocks in Eileen's portfolio were equally weighted. The stock that would contribute the least systematic risk to the portfolio is Andalusian Limited (AL). Further, if all of the stocks in the portfolio were equally weighted, the stock that would have the least amount of unsystematic risk is Mainway Toys Co. (MTC).
If the risk-free rate is 5.00% and the market risk premium is 7.50%, then Eileen's portfolio will exhibit a beta of 0.95 and a required return of 11.25%.