U.S. stocks were mostly lower Monday The technology-heavy Nasdaq index managed to climb. The Dow Jones industrial average fell 328.60, or 1.4 percent, to 23,390.77. The broader Standard & Poor's 500 index fell 28.19, or 1 percent, to 2,761.63. The Nasdaq composite index rose 38.85, or 0.5 percent, to 8,192.42.