usually bitcoin prices will collapse when there is bad news so you better take advantage of such moments to buy as much bitcoin as you can. And I think this is a very normal movement because bitcoin is not always going to be a very expensive coin definitely bitcoin prices will experience the price of carelessness
One of the more likely explanations is also one of the least satisfying. The proportion of buy orders in the market, as pulled from a somewhat vague sampling of cryptocurrency trading pairs on major exchanges, shows the sudden tilt of market sentiment.