Stocks were mixed for the two-week period ended April 24. Both the Dow Jones Industrial and the S&P 500 finished the period up 1.0 percent. The NASDAQ finished up 0.4 percent, while the Valley 50 Index was down 1.3 percent. The best local performer was Research Solutions Inc., up 44 percent, with Power-One Inc. being the second best performer, up 43 percent. The worst local performers were Ixia, and Ceres Inc., both down about 18 percent.