Puts with increasing volume at CBOE

QQQ 1/20/2017 115 34K contracts

XLF 8/19/2016 24 18K

SPY 8/12/2016 218 11K

XLF 12/16/2016 22 10K

EWZ 9/16/2016 30 10K

TXN 10/21/2016 70 10K

IWM 9/16/2016 118 8K

BCRX 3/17/2017 5 5K

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