The dump doesn't really begin until exchanges actually let users deposit BCH. For example, I am still waiting for Bittrex. Once they do, there will be a blood bath.
Why you not deposit to HitBTC exchange??? In today I have sold all my Bitcoin Cash on exchange HitBTC and not have any issue, but the price of Bitcoin Cash on this exchange lower than Bittrex, I remember when I sold the price is 0.2 BTC per coin, although in this time Bittrex reach to 0.4 BTC per coin