In Friday trading, the Dow Jones industrial average dropped 139 points, or 1 percent, to 13,093.
The Nasdaq fell 38 points, or 1 percent, to 2,982.
The S&P 500 fell 13 points, or 1 percent, to 1,414.
The LABJ Stock Index fell 1 point, or nearly 1 percent, to 135.