Stocks ended sharply lower Thursday, reversing strong early gains as Treasury yields saw a renewed rise. The Dow Jones Industrial Average DJIA, -0.85% fell around 369 points, or 1%, to finish near 34,792, according to preliminary figures, while the S&P 500 SPX, -0.72% dropped 1.5% and the Nasdaq Composite COMP, -0.45% tumbled 2.1%. The yield on the 10-year Treasury note rose around 6 basis points to 2.902%.