There's little debate that what happened to the valuations of newly minted Bitcoin Cash the night of 11/11/17 was a well orchestrated 'Pump and Dump'. To me it's hard to believe that it would just happen once. From what I've read crypto currency manipulation rarely happens in 1s. If you consider the amount of BCH that was airdropped when it was minted it would make sense that they'd need another coordinated rally to sell the remainder of their supply at a big profit before the new currency goes the way of Bitcoin Classic or Bitcoin Unlimited. I suspect that the price of BCH is being carefully devalued to create a low launch price before they use their reserves to pump the market and then sell everything at a high.