I think that we see a good example of manipulation.
Few weeks ago CEO of Bitmex Arthur Hayes said that Ethereum is useless coin with value under 100USD.
I think I agree with this. There's some serious price manipulation going in this at this time and these guys don't care if people lose money. Arthur Hayes made that comment a few weeks back and the current price reflects those comments. Some have even predicted ETH going as low as $2.