You are managing your $2.5 million retirement stock portfolio that has a current beta of .9 and a required rate of return of 10.8%. The current risk-free rate is 4.5%. You are going to liquidate other non-stock investments and invest an additional $2.5 million into stocks. If you invest the money in stocks with a beta of 1.5, what will be the new required rate of retum on your portfolio? 12.8% 12795 13.15 12.9% 13.096