the way to make real money in biotech is to invest in companies with solid science and good management and then hold long term through all the bone-jarring volatility.
That is my methodology too. I bought more RVNC yesterday at $26.40. I assumed RVNC was dropping after its big jump last week due to profit taking. I mistakenly thought the CPI data would be out today and assumed it would show slowed inflation, as it did, and I would be able to buy more RVNC before that data was released. Fortunately for me the market didn't react so quickly to the excellent inflation data and I was able to at the aforementioned price.
After 2 decades of investing I have finally learned to accept or even embrace the wild market swings as they provide buying and selling opportunities to those who don't panic or don't get too greedy. I will probably stop buying RVNC as it has now jumped over EXEL in my portfolio to be come my second largest holding and I am sitting on a 50% paper gain. I need a bit more diversification in my biotech portfolio.