In Thursday morning trading, the Dow Jones industrial average jumped 221 points, or 2 percent to 13,268.
The Nasdaq was up 56 points, or 2 percent, to 3,125.
The S&P 500 rose 25 points or 2 percent to 1,428.
The LABJ Stock Index gained 2 points, or 2 percent, to 139.
