U.S. stocks fell sharply Tuesday. The Dow Jones industrial average fell 313.98, or 1.2 percent, to 26,164.04. The broader Standard & Poor's 500 index fell 45.73, or 1.6 percent, to 2,893.06. The technology-heavy Nasdaq composite index fell 132.52, or 1.7 percent, to 7,823.78.