Yes.There are lot of coins that they pump and dump so while pumping a lot of people will FOMO and later it will dump. But what of coins that actually are moving up without pumping without dumping an example is Unibright. It was quiet for about a year and in the space of one month it has gone to the sky assuming you fomo for such coin maybe when it was around 0.1 you would still profit.
That is why a good research about a project is needed of the capability of the project. You just have to know that you cant know about all the good projects in the crypto space you will just identify one or two then you are good to go