Market cap is falling without brakes, and today some whaleshave transfered thousands of eth to exchanges (some of them, are big whales that acumulated eths from since their price was few cents).
When this whales sell their eth for some million dollars the falling will be tremendous.
If it is true then I could say that another kind of manipulation to let panic seller sell their keeps that will cause in pulling down the ETH value to more deeper, with that they can buy back again as a preparation for the activation of the hard fork next year.