On the , the is more obvious. The right time to enter was right after , where Illumina recovered all the overnight losses and closed up for the day. Still, the RRR is acceptable even today.
I would trade this stock as follows: Go long with a stop below the day, with a target for at least half the position just below the 78.6 retracement. The remaining position should be kept in case this proves to be a failed pattern.