$EXAS Interesting Gap Play

Exact Sciences been on my watchlist since its earning gap on 10/27 when I finally initiated a long position @ $117.50 on 11/24. Trade setup is annotated on the chart. More of an educational post around how to trade gaps. Other gaps I recently traded includes $BAC, $SNAP and $LASR (might post educational posts around how the setups played out on these).