The Dow jumps nearly 550 points

Stocks jumped Tuesday as strong earnings and economic data lifted spirits on Wall Street.
The Dow surged nearly 550 points in its best day since March. 
Watch US stocks trade in real time here.Stocks notched their best day since March on Tuesday as strong earnings reports helped lift spirits on Wall Street, following a sell-off that had shaved thousands of points from the major US indices last week.The Dow Jones industrial average rallied 2.17%, 0r nearly 550 points, after ending lower four