I think that yesterday was a panic selling by some people because the china government has tried (or did) affected the bitcoin by tried to control it, but the price again went a little up.
I do not think that yesterday's events and fluctuations in the price of Bitcoin is just a panic. Surely there are some hidden reasons
I usually read the news here in forum and I have read that something in China has happened and I believe that this is the only thing that could affect so much the bitcoin price.