US stocks extended losses on Wednesday as markets continued to parse a mixed set of earnings results, while concerns over additional trade barriers between US and China and the government shutdown persisted. The S&P 500 and the Dow dropped more than 0.5%, with the latter having closed at a record yesterday, while the Nasdaq slipped 1.2%. Netflix tumbled more than 10% after its results were affected by a tax dispute in Brazil. Tesla dropped over 2% ahead of its earnings report after the closing bell on news that recently-built vehicles can have a sudden loss of battery power. Also on the earnings front, Texas Instruments fell 6.5% on a lackluster guidance, pressuring other semiconductor companies with Intel, AMD, and Micron dropping more than 4%. On the upside, Thermo Fisher Scientific rebounded slightly after reporting stronger-than-expected earnings and revenue. Intuitive Surgical surged over 16% following strong earnings and revenue.