Volume just moves up and down but if you think its still going up after seeing what happened during December then you are delusional. It was 3-4 times bigger than this even more at times. The bigger volume means the price is going up, its a circle, if the volume goes up the price goes up and if price goes up the volume goes up.

Considering bitcoin is a new tech that people are still getting into and there are still not even close to regular investment methods we can clearly say the volume for daily movement can go as high as 100 billion a day for trading purposes and when that happens I am sure it will reach 100k levels as well.