In Monday trading, the Dow Jones industrial average dropped 326 points, or 2.1 percent, to 15,373.
The Nasdaq fell 107 points, or 2.6 percent, to 3,997.
The S&P 500 lost 41 points, or 2.3 percent, to 1,742.
The LABJ Stock Index was down 4 points to 174.
