BIIB possible cup forming

Playing Trading Simulator Game:

Cup taking shape on the daily chart.
Price in upward channel.
Stoch in upward channel.
RSI shows nice upward trend.
Enter long after price above:
a) 16MAR18 high of 292.30
b) 26FEB18 high of 296.10
c) Psychological resistance of 300

My choice: BUY STOP at 301.5