U.S. stocks rose significantly Tuesday, with the Standard & Poor's 500 index gaining for the first time in three sessions. The Dow Jones industrial average rose 140.90, or 0.55 percent, to 25,657.73. The broader S&P 500 index rose 20.10, or 0.7 percent, to 2,818.46. The technology-heavy Nasdaq composite index rose 53.98, or 0.7 percent, to 7,691.52.