Wall St opens down after European elections

US stocks opened lower on Monday as election results in France and Greece stirred up new uncertainties about how the region would tackle its ongoing debt crisis.

The Dow Jones industrial average dropped 41.44 points, or 0.32%, to 12,996.83. The Standard & Poor's 500 Index lost 4.40 points, or 0.32%, to 1,364.70. The Nasdaq Composite Index fell 14.13 points, or 0.48%, to 2,942.21.