I personally take most of December off when it comes to trading. I usually only do research in December and relax. It is a time to reward myself for a good trading year.
Generally speaking, there is little volume towards the end of the year, with the exceptions of someone trying to fill a quota somewhere.
I would recommend that you look at previous years and see what price action was like. It will not only give you an idea of what the market was like, but will also make you more comfortable with doing your own research.