Moving on this info is competing with the big players.
It was possible to gain by trading on this info when it was news. For the big players, that was 18 months ago, so by now the opportunity to meaningfully trade on this info is exhausted.
For any new information, you can trade on it if you get it at the same time (or before) as the big players, and you can't if you lose in the competition of timely analysis.
Not exactly. The big players often get news before you. However the big players cannot act one small news. That is if you can invest $1,000 for a year at 15% that is a big deal to a small player - but to the big guys the time spending trading that $1,000 is time when they ignore the other millions under their watch and so it isn't worth it. Thus as a small player you need to find those large gains on small investments that are not worth their time.
Actually this news was tradable by both small and big players. It is larger than all the big traders combined after you factor in risk tolerance.
That is nobody sane puts all their eggs in on basket. There was always the risk that vaccine efforts would have found a vaccine for the disease and stopped it in is tracks. There have always been diseases, most don't spread fast enough to be a problem and it isn't clear in advance which are a problem and which are not.
It was possible to gain by trading on this info when it was news. For the big players, that was 18 months ago, so by now the opportunity to meaningfully trade on this info is exhausted.
For any new information, you can trade on it if you get it at the same time (or before) as the big players, and you can't if you lose in the competition of timely analysis.