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US stocks edged modestly lower at the open on Wednesday, following two days of gains, as investors awaited comments from Federal Reserve Chair Janet Yellen at the conclusion of a two-day Fed policy meeting.
The Dow Jones industrial average fell 15.7 points, or 0.1%, to 16,320.49, the S&P 500 lost 2.55 points, or 0.14%, to 1,869.7 and the Nasdaq Composite dropped 9.309 points, or 0.21%, to 4,324.004.
