$QQQ Invesco QQQ Trust, Series 1 Option Alert: Jul 31 $245 Puts at the Bid: 4189 @ $4.09 vs 12750 OI; Ref=$253.6803 [7/2/2020, 8:50:00 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $VWO $TIF $FIS $TZA $X $XLU $EVRG $FXI $THC $PTON $QD $MSFT