Mary has a three-stock portfolio and is interested in estimating its overall return next year. She has $25,000 invested in Orange Corp., which has a beta of 1.3, $75,000 in Purple Corp. with a beta of .8 and $20,000 in Blue Corp, which has a beta of 1.45. The stock market is currently returning 10.2% and treasury securities are yielding the risk free rate of 4.6%. What return should she expect anticipate on her portfolio? find out the portfolio beta and then apply the SML.