Dow plunges 799 points today

The Dow dropped 799 points, or 3.1%, on Tuesday. At one point, the index was down 818 points. The S&P 500 declined 3.2%, while the Nasdaq tumbled 3.8%.

The broader market averages lost over 3 percent apiece with the Dow Jones Industrial Average closing just shy of an 800 point drop. Total trading volume, which includes all the major U.S. exchanges, averaged near 8.9 billion shares changing hands, above the average 6.9 billion.