Can coins/token pump without trading activities?

[Tnoy30]

I think, the rise and fall of token or currency prices depends on the investors. However, when the CEO of token makes the token available in the market. Now the CEO is not harmed when its price goes down. Because he makes the rest available by leaving part of his profit. But then the rise or fall of token prices depends entirely on the investor and the hunter. So if there are no investors in any project, that project ends automatically. I have seen many tokens that have no investors. But they are not excluded from the market cap now. I don't think the CEO of those projects wants to develop tokens anymore. So there is no investor in those tokens or coins.