The only one real reason that I see here is the market manipulation. Someone decided to make some funds in the last year and has pumped the market dramatically, when this crypto-hype started to grow tramendeosly fast and has reached its apogee in January they decided to start selling huge amounts of crypto. And basically everything that you see right now is just the price manupulation of those sitting on top. I really advice you to avoid trading if you were planning and start investing in some coins and HODL them, there's no other good chance to make money off the market differently. FOr example I have invested recently couple of eth in the project called Cryptics, thse guys have developed a platform which allows to get the price forecasts with high accuracy rate up to 70%, they gonna run the next ICO phase soon in August.