I am pretty sure that in the last three years the annual absolute low was in January. All around two weeks in.
In 2014 and this one we had a December ATH to tumble down from.
So unless Bakkt does pick things up, maybe the few weeks post-year end will be the final spike down. The end of the year is a taxation point, so it's perhaps an oddly diptastic month for a reason. I am not a bear, but it is why I am wary of calling the bottom yet.
EDIT: Stuff