if we think that the events of today are almost the same as the events of a year ago, maybe this is the Christmas trend and the new year that makes people must hold cash to celebrate.
i dont think its the same as the last years december because some people said that bitcoin has increased on the last december 2016 but bitcoin on this december 2017 has decrease dramatically due to the cause of correction however holidays season has also the other factor and reason on why bitcoin has going for a dip thesedays. yet it is still a win win situation for most of us because now is the perfect time to buy and horde more bitcoins.
Holiday or no holiday, bitcoin really had a very huge increase this year that normally nothing really warranted it except that some people just got so greedy but it is all good, it is not something that was not meant to happen anyway and it is not that it would remain the same way for life. Bitcoin will still increase in value over time, which is just normal.
There are only rumors that it is because of the holiday season whrre people are selling their Bitcoin to buy gifts for their selves. So transactions are getting high in that case which makes the demand and its value low. So probably it is the main reason.
Those are just some rumors that we all know it is not true. How much do you want to cash out to spend for Christmas, but whichever way, let us assume that was even the case, the gospel truth is that this would have happened and the way the whole thing happened anyway, really made some sense as this was really needed to be able to bring sanity back to the market.