US sharemarkets traded lower on Wednesday on heightened trade war concerns. The Dow Jones fell by up to 250 points during the session. Shares of industrials' including Boeing (-1.8%), Caterpillar (-3.1%) and DowDuPont (-2.4%) were a drag on the Dow. The S&P 500 energy (-2.2%) and materials (-1.7%) sectors also fell on global growth concerns. And the Philadelphia semiconductor index fell by 2.6%. The Dow Jones fell by 219 points or 0.9%