NEW YORK – The U.S. stock market opened lower on Thursday after weaker-than-expected retails sales in January and an uptick in weekly jobless claims weighed on sentiment. Federal Reserve Chairwoman Janet Yellen's scheduled appearance before the Senate Banking Committee on Thursday was postponed due to a snowstorm. Investors also digested a batch of mixed earnings reports from companies such as Cisco Systems , Whole Foods Markets and PepsiCo . The Dow Jones Industrial Average began the session down 90 points, or 0.5% at 15,876.17. The S&P 500 opened 9.14 points, or 0.6%, lower at 1,809.40. The Nasdaq Composite opened down 22 points, or 0.6% at 4,174.12.
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