U.S. stocks rose Wednesday, ending a three-day slide. The Dow Jones industrial average rose 146.97, or 0.5 percent, to 27,649.78. The broader Standard & Poor's 500 index rose 19.56, or 0.6 percent, to 3,112.76. The technology-heavy Nasdaq composite index rose 46.03, or 0.5 percent, to 8,566.67.