As far as I believe, there is no rational buyer or investor who will not want to buy bitcoin at a cheaper rate so as to make profit when its value skyrockets. Since the buyers are always looking for cheap coins to buy,don't you think buyers has hand in what happen in China? Bitcoin was sold in China at a cheaper rate and bought by the same people in China. Who then do think is responsible for the bitcoin price decline?
The whales can do this in other to influence the price of bitcoin, and buy cheap and by October or November hardfork to sell at a very high price. Buyers will always buy coins and sellers will always sell coin and this is the cycle of the market. Whales are the one buying or selling coins for the purpose of manipulations and price control in the cryptocurrency markets. The reason for recent price fall are the FUD created by Jamie Dimon comments and China regulatory authority.