In Wednesday trading, the Dow Jones industrial average closed up 162 points, or 1 percent, to 16,425.
The Nasdaq rose 52 points, or 1 percent, to 4,086.
The S&P 500 rose 19 points, or 1 percent, to 1,862.
The LABJ Stock Index rose 2 points, or 1 percent, to 186.
