In Friday trading, the Dow Jones industrial average closed down 160 points, or 1 percent, to 16,413.
The Nasdaq fell 110 points, or 2.6 percent, to 4,128.
The S&P 500 fell 24 points, or 1 percent, to 1,865.
The LABJ Stock Index fell 3 points, or 2 percent, to 189.
