It's very difficult to say when will be a time for buying. News background can be temporary and have controlled whale market. The better waiting a stability growth and go than spend on the bottom.
In my opinion the current situation of the market is very bad because nobody is happy with the situation and some investors say that in this day investing in bitcoin is just a waste of time and money because there is no positive movement in the price. But I think that the price will grow after long time and we will have to wait till that time. Dont be panic and be patient.