yes maybe not everything is like that! everything needs a process, but the fact is like that.
sometimes I think, what's the use of them making their own cryptocurrency but when entering the market there is no further price development. after that it feels like dead!
I hope I don't misjudge.
This is not applicable to all the newly listed or lunched coins. Although, most coins would first plunge when listed, but with time and with regular development, they would pump or better still grow organically. Many a times, coins that pump first at initial listing, tend to dump after a short period of time and might find it hard to return to its ATH.