Wall St ends up 4% above 12,000

U.S. stocks closed up sharply overnight, the biggest one-day point and percentage gain this year, after global central banks announced a plan to support the global financial system and better-than-expected economic reports.
The Dow Jones Industrial Average ended up 490.05 points, or 4.24 per cent at 12,045.68, above the psychologically-important 12,000 level.

S&P 500 index closed up 51.77 points, or 4.33 per cent at 1,246.96. All 10 S&P sectors closed firmly in positive territory, led by financials and materials.

Nasdaq composite surged 104.83 points, or 4.17 per cent, to finish at 2,620.34.

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