There are a lot of new coins listed on the exchange now, but not much money has really come into the market.
There must be a big wave like the massive press coverage in 2017 for there to be a large flow of money poured into Crypto
If there are many new coins listed on the exchange but there is no liquidity, MM will not dare to pump, so you can rest assured that sooner or later there will be a big Altcoin wave.