$SPY SPDR S&amp;P 500 Option Alert: Sep 18 $313 Puts Sweep (2) near the Ask: 846 @ $20.691 vs 6671 OI; Ref=$303.04 [6/29/2020, 10:51:29 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $TRIP $CC $NVAX $AMAT $CACI $VSTO $JNJ $NLY $EEM $MNK $NKE $BKLN