Wall Street falls as Middle East concerns offset earnings optimism

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SPDR DOW JONES INDUSTRIAL AVERAGE ETF TRUST (NYSE: DIA) Delayed: 539.62 +1.43 (0.27%)
Previous Close $538.19    52 Week High $189.39 
Open $538.71    52 Week Low $154.38 
Day High $540.22    P/E N/A 
Day Low $537.43    EPS $0.00 
Volume 2,221,778       

PowerShares QQQ Trust, Series 1 (NASDAQ: QQQ) Delayed: 723.03 +8.38 (1.17%)
Previous Close $714.65    52 Week High $119.66 
Open $720.15    52 Week Low $94.84 
Day High $723.63    P/E N/A 
Day Low $716.51    EPS $0.00 
Volume 31,064,852       

S&P DEP RECEIPTS (NYSE: SPY) Delayed: 773.26 +4.70 (0.61%)
Previous Close $768.56    52 Week High $219.60 
Open $771.02    52 Week Low $181.02 
Day High $773.92    P/E N/A 
Day Low $769.61    EPS $0.00 
Volume 43,579,182