Investors retreated from stocks Thursday, leading the Dow Jones industrial average to its worst day in five weeks, after disappointing earnings from Wal-Mart and mixed news about the global economy.
Financial markets reflected broader investor jitters: government bonds rose, small-company stocks continued to plunge, and safe, slower-growth industries fared the best.
The Dow Jones industrial average dropped 167.16 points, or 1 percent, to 16,446.81.
The Standard & Poor's 500 index lost 17.68 points, or 0.9 percent, to 1,870.85.
The Nasdaq composite fell 31.33 points, or 0.8 percent, to 4,069.29.
For the week:
The Dow Jones industrial average is down 136.53 points, or 0.8 percent.
The Standard & Poor's 500 index is down 7.63 points, or 0.4 percent.
The Nasdaq composite lost 2.58 points, or 0.1 percent.
For the year:
The Dow is down 129.85 points, or 0.8 percent.
The S&P 500 index is up 22.49 points, or 1.2 percent.
The Nasdaq is down 107.30 points, or 2.6 percent.