NEW YORK (AP) ¿ Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and Nasdaq Stock Market: NYSE: SLM Corp., up 42 cents at $8.11 The Department of Education chose the country's biggest student lender as one of the servicers of its loans to college students. Carnival Corp., up $1.72 at $24.77 The cruise ship company cut its forecast because of rising fuel costs, but said booking volumes have picked up strongly for the year. J.M. Smucker Co., up $4.22 at $47.86 The jams, jellies and Folgers coffee supplier said consumers are still staying home to eat, pushing its fourth-quarter profit higher. Exelon Corp., up $2.03 at $50.46 The power company will eliminate 500 jobs, freeze executive pay and cut operations and maintenance spending by 3.5 percent this year.