US STOCKS-Wall St falls alongside oil on global growth concerns
* Dow Chemical, DuPont jump on merger buzz
* S&P materials sector soars 3 percent on Dow, Dupont reports
* Energy stocks trim gains as oil recovery stalls
* S&P technology sector leads losers with 1.7 pct decline
* Indexes down: Dow 0.4 pct, S&P 0.8 pct, Nasdaq 1.5 pct (Adds comment, refocuses first paragraph on stocks/oil correlation)
By Sinead Carew
Dec 9 (Reuters) - U.S. stocks closed lower on Wednesday in a choppy session as oil resumed its decline, fuelling investor worries about global economic growth and causing the S&P 500 index to track the move in the commodity.
After a morning rally for both oil and stocks, the three major U.S. stock indexes fell as oil reversed course and investors also prepared for a Federal Reserve meeting next week that is expected to result in an interest rate hike.
"Often times investors will look at the commodity complex as a barometer for the global economy. Couple that with the fact that we broke support in the S&P 500," said Art Hogan, chief market strategist at Wunderlich Securities in New York, citing selling after the S&P hit the 2050 level. Continuación...