Well .. year-end holidays should be a fun time for everyone. But not for miners or Bitcoin investors. Because bitcoin prices fell quite hard, which is about 40% (more or less) in the middle of last week. although, in the second week of December 2017 Bitcoin has touched its highest level.

hmm .. there are many reasons behind the fall of the Bitcoin exchange rate. however indirectly the holidays require everyone to spend more budget.
Sometimes for the sake of vacation, someone willing to sell the valuables he has. and apparently the user / owner of bitcoin did not escape it. it may be Christmas and New Year's holidays are also "push" bitcoin owners to sell bitcoin. Of course (maybe) this sale action takes place in considerable volume. If so, then the bitcoin supply increases, so if the supply increases, the price will decrease.
I thought, does not that make sense!