$SPY SPDR S&amp;P 500 Option Alert: Jul 31 $315 Calls Sweep (3) near the Ask: 600 @ $8.571 vs 5975 OI; Ref=$316.88 [7/7/2020, 5:57:56 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $ERI $TTWO $EIX $VZ $Z $JNJ $XRX $BP $FXI $HSBC $XLNX $ETSY