Wall Street advances on earnings

Dow Jones, S&P and Nasdaq Composite Index up 0.5%

US stocks opened higher on Tuesday after the latest quarterly earnings and outlooks posted by Goldman Sachs, Coca-Cola and others outweighed investor fears about the sluggish global economy.

The Dow Jones industrial average gained 66.92 points, or 0.50%, to 13,491.15. The Standard & Poor's 500 Index rose 5.48 points, or 0.38%, to 1,445.61. The Nasdaq Composite Index added 8.73 points, or 0.28%, to 3,072.91.