U.S. stocks roar, Dow Jones jumps 347 points. Nasdaq 259

NEW YORK, New York - U.S. stock markets roared ahead on Thursday with all the major indices gaining ground.

The gains were mirrored on European, UK, and Asian markets.

The Dow Jones Industrial Average rose 346.87 points, or 1.12 percent, to 31,384.55.

The Standard and Poor's 500 advanced 57.54 points or 1.50 percent to 3,902.62.

The Nasdaq Composite added 259.49 points or 2.28 percent to 11,621.