Well in my understanding christmas and btc will be affect with the value or the year, as we observe the value is pumping and dumping but think clearly it pumps bigger than dump so the value will more pump in christmas up to new year, I maybe don't  know what the curse to make the value pumping but for me it pumps if many people trust this one and use as daily and also for the other group of campaign which has fully success their project so that in affect with bitcoin it will boom.