These days due to the current state of the market crypto news doesn't carry much buzz as before. Back then in 2017 and earl 2018 a new exchange listing carries much buzz, but not recently,
you are not completely right.
the thing is, news like this (a random coin listing on an exchange) has always been the same. it needs to satisfy a bunch of conditions for it to get pumped (and you have to realize that it IS a pump before you can explain the behavior):
- the exchange has to be a decent one. for example being listed on an exchange that nobody has even heard of or a shitty exchange like Yobit is not going to lead to a pump. but listing on a big famous one like Binance can.
- the news has to be hyped up. otherwise people won't even hear about it and that will never lead to a pump if people aren't hyped up.
- more importantly a pumping team (it can be the developers of that coin) has to actually pump the coin for it to go up, otherwise it won't magically get pumped!
plus the news of many exchanges performing wash trades making it worse
nobody cares about it even a tiny bit...