This is begining to look more and more like a bear raid! Huge Volume Drop to trigger stop losses, get margin selling to occur and then the stock recovers with no news. Lets see what the next few days bring.
Definition of 'Bear Raid'
The illegal practice of attempting to push the price of a stock lower by taking large short positions and spreading unfavorable rumors about the target firm. Investopedia explains 'Bear Raid'
In a bear raid, the manipulators profit on the difference between the original stock price and the lower (manipulated) price. This was a popular practice in the early 1900s.