$SPY $DIA $NDX $QQQ $SPX $IWM $WTI $GLD $TVIX $TNN $TLT $HTZ $LK $TSLA $AAPL $BA $ROKU $BYND $CHK $MRNA $NFLX $AMZN $MSFT $SBUX $FB $TWTR $XLF $XLK $XLE $X etc Dow futures drop more than 300 points as #WallStreet set to extend last week’s sharp losses