Lately, there have been many problems, therefore, probably this month the coins are under serious failure. I'm not sure how it all began, since I did not carefully study how it started, but I read something about Tether and Bitfinex, and then about the prohibition of cryptography in India and South Korea, and also about the prohibition of all associated with cryptographic ads Facebook. This is what I read while browsing the forum for two days.
So, do you mean, the main cause of failing price mostly come from FUD news?
If so, well I agree with you. Recently, I reducing my habit to read any news source which not trustable.