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The Dow Jones Industrial Average rose 19.11 points, or 0.08 percent, at the open to 24,758.64. The S&P 500 opened lower by 0.37 points, or 0.01 percent, at 2,722.70. The Nasdaq Composite dropped 11.01 points, or 0.15 percent, to 7,393.97 at the opening bell.