Bitcoin price was showing signs of topping since yesterday and after a strong push to 3100 CNY and $480 (Bitstamp) price plummeted $100 in some exchanges before recovering during the day.
From the analysis pages of xbt.social, earlier today:
The analysis below was already written by the time I post this and the price correction has begun. Price has triggered both our xbt.social dynamic stop-losses and the trade is closed after raking in large profits on this last move.
https://www.cryptocoinsnews.com/bitcoin-price-top-o-morning/