Wall St ends mixed in truncated Black Friday trading

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PowerShares QQQ Trust, Series 1 (NASDAQ: QQQ) Delayed: 717.00 -12.87 (1.76%)
Previous Close $729.87    52 Week High $119.66 
Open $720.21    52 Week Low $94.84 
Day High $722.13    P/E N/A 
Day Low $717.00    EPS $0.00 
Volume 15,123,752       

S&P DEP RECEIPTS (NYSE: SPY) Delayed: 767.91 -4.76 (0.62%)
Previous Close $772.67    52 Week High $219.60 
Open $768.70    52 Week Low $181.02 
Day High $769.50    P/E N/A 
Day Low $767.63    EPS $0.00 
Volume 11,007,140