Dow Jones Industrial Average Drops 100 Points, Turns Negative For 2015 After Caterpillar Inc (CAT), 3M Co (MMM) Sink 3%

U.S. stocks traded lower Thursday, with the Dow Jones Industrial Average turning negative for 2015 after multiple blue-chip companies posted mixed earnings results and warned of currency headwinds due to a strong U.S. dollar. A trio of Dow components, including Caterpillar Inc. (NYSE:CAT), Post-it notes maker 3M Co.