Wall St ends mixed in truncated Black Friday trading

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PowerShares QQQ Trust, Series 1 (NASDAQ: QQQ) Delayed: 723.83 -5.12 (0.7%)
Previous Close $728.95    52 Week High $119.66 
Open $718.55    52 Week Low $94.84 
Day High $726.10    P/E N/A 
Day Low $715.44    EPS $0.00 
Volume 25,710,398       

S&P DEP RECEIPTS (NYSE: SPY) Delayed: 769.76 +0.16 (0.02%)
Previous Close $769.60    52 Week High $219.60 
Open $766.25    52 Week Low $181.02 
Day High $771.23    P/E N/A 
Day Low $764.43    EPS $0.00 
Volume 17,526,569