There has been one guy that has been fairly accurate in predicting the major moves in bitcoin. He does interviews from time to time and if you can, you should try to watch the ones regarding crypto currencies. I don't watch his other videos because sometimes he can be a bit out there on some topics. But I give him credit where credit is due and he has been more right then wrong on bitcoin. The name is Clif High. He has his own youtube channel but look for when other people interview him like Greg Hunter and a few others. He also sells a report at his website but you can get a lot of information for free just from his interviews. (I haven't bought his special reports on crypto yet)

Clif had predicted a decline around the middle of June with June 15th being an important date. After June 23, he says bitcoin will start out performing once again (ethereum has been out performing bitcoin for several months now).

Cheers and thanks.