4. Portfolio beta and weights Gregory is an analyst at a wealth management firm. One of his clients holds a $5,000 portfolio that consists of four stocks. The investment allocation in the portfolio along with the contribution of risk from each stock is given in the following table: Stock Investment Allocation Beta Standard Deviation Atteric Inc. (AI) 35% 0.600 38.00% 20% 1.600 42.00% Arthur Trust Inc. (AT) Lobster Supply Corp. (LSC) Transfer Fuels Co. (TF) 15% 1.200 45.00% 30% 0.400 49.00% Gregory calculated the portfolio's beta as 0.830 and the portfolio's required return as 12.2250%. Gregory thinks it will be a good idea to reallocate the funds in his client's portfolio. He recommends replacing Atteric Inc.'s shares with the same amount in additional shares of Transfer Fuels Co. The risk-free rate is 6%, and the market risk premium is 7.50%. According to Gregory's recommendation, assuming that the market is in equilibrium, how much will the portfolio's required return change? (Note: Do not round your intermediate calculations.) O 0.6038 percentage points O 0.6510 percentage points O 0.4095 percentage points O 0.5250 percentage points Analysts' estimates on expected returns from equity investments are based on several factors. These estimations also often include subjective and judgmental factors, because different analysts interpret data in different ways. Suppose, based on the earnings consensus of stock analysts, Gregory expects a return of 13.20% from the portfolio with the new weights. Does he think that the required return as compared to expected returns is undervalued, overvalued, or fairly valued? O Overvalued Undervalued Fairly valued Suppose instead of replacing Atteric Inc.'s stock with Transfer Fuels Co.'s stock, Gregory considers replacing Atteric Inc.'s stock with the equal dollar allocation to shares of Company X's stock that has a higher beta than Atteric Inc. If everything else remains constant, the portfolio's risk would