Bitcoin will rise during the Christmas holidays, just like it did during Black Friday/ thanksgiving holiday. So hold your positions.
Bitcoin dips this Christmas season and it might recover within the Q1 of 2018. It does give us some sale season before the year ends.
I will never believe that the bitcoin price depends on the Christmas holidays. May decrease the activity on the stock exchange but it will not affect the price. All believe in bitcoin and therefore will keep the coins. The decrease of activity can only lead to higher prices. The whales are dumping. They long do not. I have to wait for this moment.