We often heard about market manipulation in crypto market. It can be true for small cap, or coin that issue by exchange or for the token where most of that token hold by team. But we also heard it about Bitcoin and etherum, when price fluctuate in large scale. I don't understand how these large cap coin can be manipulate, when these coin are well distributed and decentralized?
I think it is not true, no one can prove that it is really manipulated by any group of people company or corps, it is only goes down and pump again because of some investors large or small do buy and selling, that is why there is a movement of the price depending on the volume of selling or buying pressure, i think manipulation is just a theory base on what people think and not on the reality.
Your assumption is not correct. Markets are manipulated and big investors and gamblers can create volatile situations in the market and it has happened in the past and will continue to happen in the future. But they don't do it every time. They conduct their surveys on investors' interest in investments and the attitudes of holders and try to influence the market. They do this for the benefit of a group and try to exploit the market by destabilizing it.