As for me are mainly and in big amount only normal movements of the price of bitcoin. Maybe a little affected by the celebrations but I think that such impacts are very few. The main (almost totally) factor in the change of price in such amounts, for me, is the volatility of the bitcoin itself. We are facing these days of January "big changes" on price which followed the "testament" of Mike Hearn. And bitcoin was went down only for about 80-90 us dollars. Then stopped and begin the recovering. If such "speech" (full of fatalism which raised big fear at the beginners) from an ex core developer of it is able to cause only this kind of "earthquake" the celebrations can be told that don't affect at all its price. To not speak for the "Harvard guy" which make its testament at Washington Post and had any kind of effect on its price.