Wall St ends slightly lower with Big Tech earnings on deck

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PowerShares QQQ Trust, Series 1 (NASDAQ: QQQ) Delayed: 723.92 +6.29 (0.88%)
Previous Close $717.63    52 Week High $119.66 
Open $722.22    52 Week Low $94.84 
Day High $723.96    P/E N/A 
Day Low $719.71    EPS $0.00 
Volume 10,492,589       

S&P DEP RECEIPTS (NYSE: SPY) Delayed: 771.12 +2.07 (0.27%)
Previous Close $769.05    52 Week High $219.60 
Open $771.17    52 Week Low $181.02 
Day High $771.34    P/E N/A 
Day Low $768.40    EPS $0.00 
Volume 7,453,524