U.S. stocks fell for the first time in four sessions Monday. The Dow Jones industrial average fell 96.93, or 0.35 percent, to 27,918.13. The broader Standard & Poor's 500 index fell 9.95, or 0.3 percent, to 3,135.96. The technology-heavy Nasdaq composite index fell 34.70, or 0.4 percent, to 8,621.83.