U.S. stocks rose Monday amid optimism over U.S. China trade talks as Wall Street concluded a volatile third quarter. For the quarter, the Dow industrials and broader Standard & Poor's 500 index gained more than 1 percent each, while the technology-heavy Nasdaq lost 0.1 percent. It was the third consecutive quarterly gain for the Dow and S&P 500. The Dow Jones industrial average rose 96.58, or 0.4 percent, to 26,916.83. Nineteen of the index's 30 components climbed. The S&P 500 index rose 14.95, or 0.5 percent, to 2,976.74. Technology was among the best-performing sectors, advancing 1.1 percent. The Nasdaq composite index rose 59.71, or 0.75 percent, to 7,999.34.