This is the usual things to happen after listing to exchange. I participated in project where in they have lock the token for the bounty hunters to avoid massive dumping of token. But as I observed the price of the project it was still decrease for over 70% from the ico price. So today, I can say that its not only the hunters to be blame if price decrease there are so many factors affecting to it.
In this kind of bear market where all coins price was down, all I can say is HOLD.