Portfolio risk and return Ariel holds a $5,000 portfolio that consists of four stocks. Her investment in each stock, as well as each stock's beta, is listed in the following table: Suppose all stocks in Ariel's portfolio were equally weighted. Which of these stocks would contribute the least market risk to the portfolio? Makissi Corp. Kulatsu Motors Co. Omni Consumer Products Co. Western Gas & Electric Co. Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of standalone risk? Omni Consumer Products Co. Western Gas & Electric Co. Kulatsu Motors Co. Makissi Corp. If the risk-free rate is 7% and the market risk premium is 9%, what is Ariel's portfolio's beta and required return? Fill in the following table