The Dow Jones industrial average plunged 334 points Thursday, its worst day of the year, as a decline in energy stocks and worries about the global economy sent investors fleeing out of the market.
The Dow Jones industrial average plunged 334.97 points, or 2 percent, to 16,659.25.
The Standard & Poor's 500 index lost 40.68 points, or 2.1 percent, to 1,928.21.
The Nasdaq composite lost 90.26 points, or 2 percent, to 4,378.34.
For the week:
The Dow Jones industrial average is down 350.44 points, or 2.1 percent.
The Standard & Poor's 500 index is down 39.69 points, or 2 percent.
The Nasdaq composite is down 97.29 points, or 2.2 percent.
For the year:
The Dow is up 82.59 points, or 0.5 percent.
The S&P 500 index is up 79.85 points, or 4.3 percent.
The Nasdaq is up 201.75 points, or 4.8 percent.