Yes it is an amazing move today! Anytime you profit is a good thing. With a lower float like this one it was bound to have a big move. We just never know how much they will run though so keeping a little in the back pocket is never a bad idea in case it does what just happened here.
Another one that comes to mind is MJL$ where I sold out way too early. Gotta know when to hold the good ones I guess.