Stock Y has a beta of .9 and an expected return of 11.2 percent. Stock Z has a beta of .5 and an expected return of 7.2 percent. If the risk-free rate is 5 percent and the market risk premium is 6 percent, the reward-to-risk ratios for stocks Y and Z are and percent, respectively. Since the SML reward-to-risk is percent, Stock Y is and Stock Z is .