As you know , if you are trading at Dex you could easily see x100 pumps . After that pump, price down to usual point. So what is that meaning? If any whale wants to collect the tokens, there are many better ways to collect them more cheaper. Any clue ? is that money laundring?
There are many possible explanations to this. There is no single factor for such occurrences. If a certain coin is pumping hard in a particular DEX it is possible that there is really a demand for it. There might be information being passed around about an upcoming major announcement. That is a factor. It is also a factor that the devs themselves are trying to put more action to their tokens by creating a pump. It is also a possibility that some whales are creating pump and dump of the prices.