I haven't done the best with stocks over the years, but a few weeks back I threw $18,000 into AZUL, a Brazilian airline, when it was at $6.71 about 3 weeks back. I sold today because it's running into a huge $3 gap after already having run up 100%. I sold at $16.10. I saw it closed at $17.30 (18% more on my entry price) and the volume was twice the normal amount. Not sure if I should have stayed in and let it ride or if selling out in a stock that could continue is a normality in the trading world. I always hear to stick to your exit strategy no matter what. Thoughts?

