Want to get a head start on op ex wk? Here are the best performers over the past 12 mths: $GOLD $ZM $ENPH $TDOC $DXCM $INCY $APPS $CVS $GSX $APT $LABU $ZTO $BILI $AMGN $FTNT $IBB $DG $AZN $TLT $XBI $GIS $NVDA $ETSY $MRK $TTWO $TGT $DHR $NUAN $CNC $SLV $GLD $ZNGA $COST $CCI $STZ https://t.co/Ik4a86FmaX