The exchange site has been playing the main role in this case. Coinbene is an example about the exchange site which has manipulated its daily trade volume. Big exchange site means more volume that will provide a lot of demands and the best way to liquidity our token.
The liquidity of buyers does not arise only because of the fact of listing on a large exchange. Currently, this will lead to deposits of this asset with the intention to sell. It is not difficult to guess what will happen to the price.