In Friday trading, the Dow Jones industrial average closed down 158 points, or 1 percent, to 12,938.
The Nasdaq fell 26 points, or 1 percent, to 2,960.
The S&P 500 fell 16 points, or 1 percent, to 1,402.
The LABJ Stock Index fell more than 1 point, or 1 percent, to 133.
