NEW YORK (MarketWatch) -- U.S. stock futures extended Thursday gains after the government reported a drop in weekly jobless claims. The report proved better than forecast, and pushed both equities and Treasury yields higher. Up less than 40 points before the report, futures for the Dow Jones Industrial Average were more recently up 56 points at 10,448. S&P 500 futures added 7.9 points to 1,107.2, while Nasdaq 100 futures added 13.75 points to 1,891.25.