Although it has been approved, it is still necessary to wait until the vaccine is mass-produced before it can be invested in shares. Currently, every company is putting a lot of money into production. At this time, companies haven't made any money yet; they have to wait until production and launch before it's a good time to enter the market! Of course, FDA approval is exactly what we want to see; shareholders must make their own judgment and see when the time comes to enter the market!