Tech-led selloff drives record volume in NDX options

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PowerShares QQQ Trust, Series 1 (NASDAQ: QQQ) Delayed: 716.27 -4.84 (0.67%)
Previous Close $721.11    52 Week High $119.66 
Open $719.74    52 Week Low $94.84 
Day High $724.13    P/E N/A 
Day Low $715.69    EPS $0.00 
Volume 19,112,436