$SPY SPDR S&amp;P 500 Option Alert: Sep 18 $315 Calls at the Ask: 2000 @ $14.311 vs 49106 OI; Ref=$316.53 [7/10/2020, 9:03:12 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $MGI $XLY $ERIC $XLF $HPQ $PFE $WDC $OI $HLT $SPY $SEAS $AIG