Wall Street edges lower on commodity shares

Dow closed flat after volatile session ... Investors abandoned red-hot commodity shares on Tuesday, while fears of lower supermarket profits hit food retailers, sending the S&P and Nasdaq lower.

Volume was strong for a second day as investors reshuffled their portfolios at the beginning of the year, and analysts said the attractiveness of equities was intact.

Recent stock gainers topped Tuesday's list of losers, falling as copper, oil and other commodities slipped from multiyear highs.

http://finance.yahoo.com/news/Wall-Street-edges-lower-on-rb-1768363032.html?x=0&.v=18

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