Whale's action. 
When everyone thinks the prices of crypto will go up because of ethereum hardfork they using this situation and dipping the cryptos that is why we call it si most unpredictable market.
Well I do not think that because of the fork now we are falling , I think it all depends more because of bitcoin , and yet bitcoin has no positive news we will fallWhen everyone thinks the prices of crypto will go up because of ethereum hardfork they using this situation and dipping the cryptos that is why we call it si most unpredictable market.