Stock Rit Rmt ai Beta XX 12 10.8 0 0.80 YY 10 8.0 0 1.11 Rit -return for stock i during period t Rmt -return for the aggregate market during period t What is the abnormal return for Stock XX during period t using only the aggregate market return (ignore differential systematic risk)? -8.5 percent 1.20 percent 3.36 percent 1.12 percent Calculate abnormal return for Stock YY when you consider its systematic risk. 0-1.05 percent 0 1.2 percent 3.36 percent 1.12 percent O -8.5 percent