Not always, but I remember earlier, when the news about the listing of a coin on the Binance came out, it immediately increases in price.
Now, after the listing itself, the price does not always rise, and sometimes it even happens that the price fell, this is something incomprehensible.
The token may dump after the listing because it is not listed on the best exchange platforms that do not have marketing plans and there are no investors buying the token, Or maybe the coin project idea is not unique and is not linked to a blockchain.