CORRECTED - REFILE-US STOCKS-Wall St falls on economy woes; commodities drag

(Corrects Dow reference in paragraph 3 to "Last Friday, the Dow ... turned positive for the year for the first time "since early January.")

* Fresh concerns over economy spark sell-off

* Lower commodity prices sink natural resource shares

* Goldman Sachs downgrades Wal-Mart, stock slides

* Dow off 2.1 pct, S&P off 2.4 pct; Nasdaq off 2.6 pct * For up-to-the-minute market news click [STXNEWS/US] (Updates to midday, changes byline)

By Edward Krudy

NEW YORK, June 15 (Reuters) - U.S. stocks sold off broadly on Monday as regional manufacturing data sparked fresh concerns about the economy's health, while sliding commodity prices hit shares of natural resource companies.

Data showing manufacturing in New York state shrank in June at a much more severe rate than forecast gave investors pause. Even though there has been some signs that the economy may be stabilizing, investors are looking for more definitive signals that the recession is moderating.

With the market now having risen more than 40 percent since the 12-year lows of early March, analysts said conditions warranted some consolidation. Last Friday, the Dow closed out a four-week winning streak and turned positive for the year for the first time since early January.