$SPY SPDR S&amp;P 500 Option Alert: Nov 20 $300 Puts at the Ask: 750 @ $20.15 vs 27562 OI; Ref=$305.84 [6/1/2020, 1:46:06 PM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $XLI $CVE $GLUU $NCLH $GDXJ $HOME $WORK $PEP $T $PSTG $MARK $ERI