$SPY SPDR S&amp;P 500 Option Alert: Aug 21 $294 Puts Sweep (42) near the Ask: 4218 @ $7.484 vs 3933 OI; Ref=$308.94 [6/30/2020, 11:10:05 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $MITT $ROKU $WDC $TAL $SEDG $CDAY $PFE $BTG $MPLX $IVR $CBL $TLRY