Nasdaq closes higher ahead of a heavy week of earnings

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PowerShares QQQ Trust, Series 1 (NASDAQ: QQQ) Delayed: 721.11 +9.74 (1.37%)
Previous Close $711.37    52 Week High $119.66 
Open $716.93    52 Week Low $94.84 
Day High $721.35    P/E N/A 
Day Low $714.53    EPS $0.00 
Volume 28,546,625       

S&P DEP RECEIPTS (NYSE: SPY) Delayed: 771.10 +5.02 (0.66%)
Previous Close $766.08    52 Week High $219.60 
Open $768.50    52 Week Low $181.02 
Day High $772.36    P/E N/A 
Day Low $767.16    EPS $0.00 
Volume 34,461,108