Sharp drops for chip stocks weigh on markets

NEW YORK (AP) — Sharp drops for stocks in the computer chip industry are circling the world and hitting Wall Street, while mixed profit reports from UnitedHealth Group, Wells Fargo and other big U.S. companies are keeping the market unsettled. The S&P 500 slipped 0.1% early Tuesday, but the modest move masked big swings for many stocks underneath the surface. The Dow Jones Industrial Average...