Stocks Turn Negative on US Economic Concerns
The S&P 500 Index ($SPX ) (SPY ) today is down -0.50%, the Dow Jones Industrials Index ($DOWI ) (DIA ) is down -0.84%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) is down -0.72%. US stocks today gave up an early advance and turned lower on US economic…