US markets rise as Democrats sweep midterm elections

US markets opened higher on Wednesday after Democrats won control of both the House and Senate in the midterm elections. The Nasdaq rose 1 percent, the Dow Jones 1.8 percent and the S&P 500 1.1 percent at the open. Walmart and Target gained, while UnitedHealthcare and CVS Health fell; Donald Trump said on social media that he would accept the results, easing political uncertainty. Oracle and Nvidia opened lower, while Alphabet rose 3.5 percent amid concerns that the new Congress could create obstacles for the AI sector.