NEW YORK, September 1, 2010 (AFP) - Wall Street stocks soared on Wednesday after strong manufacturing data in the United States and China eased deep-running concerns over the state of the global economic recovery.

The Dow Jones Industrial Average jumped 239.46 points (2.39 percent) to 10,254.18 by 1520 GMT, while the broader S&P 500 index gained 28.20 points (2.69 percent) to 1,077.53 points.

The tech-rich Nasdaq composite index rose 60.32 points (2.85 percent) to 2,174.36.

Trading was boosted after data showed the US manufacturing sector expanded for the 13th straight month in August, beating most analysts' expectations.

The Institute of Supply Management said its manufacturing index rose to 56.3 points, from 55.5 percent in July, a much larger jump than the 52.9 percent predicted by economists.

A reading above 50 percent indicates an expanding manufacturing sector.

"August represents the 13th consecutive month of growth in US manufacturing," the ISM's Norbert Ore said in a statement.

Nomura Global Economics analyst Zach Pandl said "the better-than-expected result suggests the manufacturing sector has a bit more momentum than we had anticipated, and that the economy is very far from recession."

The strong US figures followed data from China showing that manufacturing in the world's second biggest economy also strengthened last month, easing fears the economy was heading for a sharp slowdown in the second half of 2010.

"The Asian reports are lifting sentiment toward the global economic recovery, overshadowing an unexpected decline in private sector payrolls in the US as reported by ADP," Charles Schwab analysts said in a note.

Traders set aside a report from payrolls firm ADP saying that US private sector employment dropped in August for the first time in seven months as well as government data showing a bigger-than-expected drop in construction spending.

On Tuesday, trade on Wall Street ended mostly flat after a volatile day influenced by a surprise improvement in consumer confidence.

Among shares in focus, computer giant Apple saw its stocks rise by three percent ahead of its highly-anticipated event in San Francisco later on Wednesday where its chief executive Steve Jobs is expected to unveil the latest version of its iPod media player.

The bond market was lower.

The yield on the 10-year US Treasury bond was up to 2.605 percent from 2.477 percent on Tuesday while that on the 30-year bond rose to 3.673 percent from 3.533 percent. Bond yield and prices move in opposite directions.