I bought in the majority of my stock at $1.85 so I've already made a nice profit. I try to do my due diligence when jumping head on into something. I won't claim to be an expert in the market (far from it) but I am pretty good with numbers.
I sold off a small portion of my position when the price hit $4.10. I bought back in at $4.13 when it peaked and started coming back down under the assumption it was luck.
I guess I'm learning with biotechs that there can be 8% swings in a day on only average volume and with no concrete info to cause the up/down swing. It is tough to predict.