$QQQ Invesco QQQ Trust, Series 1 Option Alert: Aug 21 $221 Puts at the Ask: 2140 @ $3.851 vs 1975 OI; Ref=$245.4499 [6/30/2020, 9:15:00 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $F $STX $SH $SCHW $SCS $EWZ $PEP $DDOG $CF $OSTK $FXI $FAS