President Trump's trade policies continue to stir markets. Follow along for live updates on the Dow, S&P 500 and Nasdaq.

UnitedHealth (UNH) stock, which before Thursday's drop boasted a price in the $500 range, exerts the biggest influence on the Dow despite the company's market value being ranked only eighth among ...

Shares have retreated in Europe and Asia as worries persist about conflict in the Middle East. Oil prices rose and U.S.