Wall St ends up

U.S. stocks rallied to closed up amid volatile trading with investors cautious over Euro zone debt crisis and the U.S. economy.

The Dow Jones Industrial Average rose 44.73 points, or 0.40 per cent, to close at 11,105.85. 

S&P 500 rose 10.60 points, or 0.91 per cent at 1,172.87.All 10 S&P sectors finished higher, led by industrials and materials.

Nasdaq composite gained 37.06 points, or 1.49 per cent at 2,532.15.

Meanwhile, most Asian bourses opened up Wednesday on hopes that debt-stricken Greece will get further support to avoid a debt default.