Packaged food giants Conagra Brands (CAG 1.18%) and The Campbell's Company (CPB 0.71%) are both down more than 25% year to date and are hovering around their lowest levels in over a decade. Both companies are industry giants. Conagra owns brands like Orville Redenbacher's, Slim Jim, Boom Chicka Pop, Hunt's, Reddi-Wip, Marie Callender's, and more. In addition to its flagship soup line, Campbell's also owns a variety of pasta sauce and dip brands, as well as snacks like Pepperidge Farm, Kettle, Cape Cod, Snyd ...