The Bitcoin has had quite a stable week, with minor swings in both direction and a overall increase in value. The past seven days hasn't had a lot of negative or positive news really, so there hasn't been anything to really create the bigger swings in the value but the regular trading swings has been there.
The value started out last Monday at around $370, where the value quickly moved up to above $400 a coin by Tuesday, only to start a massive downswing all the way down to $355 a Bitcoin by Friday. Over the weekend however, the Bitcoin bounced back to it's past levels and even surged past to $380.
We have now reached December, which caused massive value losses last year for cryptocurrencies. It will be interesting to see if the trend will continue this year, or if the cryptocurrencies can keep their value.