U.S. stock futures surge amid cautious trading - Stock futures in the United States rise as traders look for new range-breaking catalysts. What is stock-index futures trading? S&P 500 futures E00, 0.2% rose 10 point, or 0.2% to 3968 Dow Jones Industrial Average futures HTML 00, 0.20% increased 77 points or 0.2% to 33812 Futures NQ00 on Nasdaq 100, 0.17% rose 28 points, or 0.2% to 11616 Monday's Dow Jones Industrial Average DJIA fell 45 points or 0.13% to 33700. The S&P 500 SPX, -3.39 lost 15 points or 0.39% to 3950. And the Nasdaq composite COMP, 1.09 dropped 122…