$SPY SPDR S&amp;P 500 Option Alert: Jul 31 $315 Puts Sweep (2) near the Ask: 400 @ $12.741 vs 147 OI; Ref=$310.51 [6/22/2020, 9:53:38 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $ERI $AEM $LYFT $ALNY $MGM $EIDO $NAT $ZGNX $CZR $MRO $OPK $VZ