After hours movers (Oct 20)
Gainers
$CCK 6.5% ~ Crown Holdings
$APTX 85.25% ~ Aptinyx
$EMKR 14.8% ~ EMCORE
$GNMK 3.27% ~ GenMark Diagnostics
Losers
$TEO -3.34% ~ Telecom Argentina SA
$STLD -3.38% ~ Steel Dynamics
$HXL -7.84% ~ Hexcel
$RAIL -14% ~ Freightcar America