Dow plunges more than 600 points, Nasdaq enters a correction

The Dow Jones Industrial Average wiped out its 2018 gains. 
Technology stocks were among the biggest losers, with the Nasdaq entering a correction. 
Follow the US indices in real time here.Wall Street wiped out gains for the year Wednesday as corporate-earnings season failed to calm nerves about rising rates and the prospect of slowing economic growth worldwide.The Nasdaq Composite dropped 4.4% into correction territory as a broad sell-off pummeled the index, with chipmakers among the