Stocks Open Lower As Tech Sector Under Pressure

U.S. stocks opened modestly lower on Tuesday, as a renewed selling of technology shares weighed on the main indexes. Investors were also cautious ahead of a speech by Federal Reserve Chairwoman Janet Yellen this afternoon, hoping for any clues about the timing of the next interest rate increase. The Nasdaq Composite was down 30 points, or 0.5%, to 6,215. The S&P 500 declined 4 points, or 0.2%, to 2,434. The Dow Jones Industrial Average began the session slightly lower, down 17 points, or less than 0.1%, at 21,396. Among biggest decliners, Alphabet Inc , parent of Google, was down more than 1% shortly after the opening bell.