Vaccine stocks are still considered quite volatile in my opi...

Vaccine stocks are still considered quite volatile in my opinion. Many companies are still trying out different ways to manufacture the best vaccine which has the minimum side effects and the best results against Covid. For now, the mRNA vaccines like $Pfizer (PFE.US)$ and $Moderna (MRNA.US)$ are the current market best vaccines and are/will be undoubtedly approved by FDA amidst the increasing number of Covid cases to boost confidence in taking vaccines. It is more of a hard sell way to push people to take these high-efficacy vaccines. Thus, in short run, these mRNA companies will show a bullish trend but will still fluctuate at times since there have been negative news that such vaccines can cause deaths and increased heart diseases. The future for covid vaccines IS definitely still uncertain. Who knows if there is going to be a sudden competitor who can come up with the best vaccine? If that happens, all the other vaccine stocks will drop real quick.