$SPY SPDR S&amp;P 500 Option Alert: Sep 18 $280 Puts at the Bid: 1000 @ $5.75 vs 49018 OI; Ref=$313.99 [7/9/2020, 8:35:53 AM] [+$500k Sweeps Above Midpoint] Other Sweeps on: $TSLA $EXPE $NUGT $WMT $FXI $MTG $ZM $NKLA $HBI $CGC $KO $D