In Monday trading, the Dow Jones industrial average was down 26 points, or 0.2 percent, to 16,277.
The Nasdaq fell 50 points, or 1.2 percent, to 4,226.
The S&P 500 dropped 9 points, or 0.5 percent, to 1,857.
The LABJ Stock Index fell 1 point to 188.