U.S. stocks rise, with help from DuPont, banks By: MarketWatch July 27, 2010 at 09:59 AM EDT U.S. stocks climb Tuesday following a rise in U.S. home prices for May along with another round of strong earnings. Read More >> Related Stocks: BP Plc ADR Bank of America Deutsche Bank Ag DuPont USA JPMorgan Chase & Co Standard & Poors 500