Despite uncertainty among investors about continuing support from the Fed, stocks moved ahead during the two-week period ended June 19. While the Dow Jones industrial index gained 1 percent and the S&P 500 moved up 1.2 percent, the Valley 50 jumped 2.2 percent. The biggest gainer was Ceres Inc., a Thousand Oaks producer of seeds for biofuel production, with a price hike of 57 percent. Dole Food Co. Inc., the target of a takeover by billionaire David Murdock, gained 36 percent. The biggest loser was information broker Research Solutions Inc. which dropped 19 percent.