purdue pete. My definition of a whale - in the range of OTC stocks I specialize in which is .0001 > .001 entry - is someone holding in the range of 50M > 200M.
Depends on the entry price of course but someone who doesn't mind buying 10M > 20M chunks at the self-evident inter-run bottom few levels to create an inventory for use in the future.
Very easy to spot who the others in $DIGX are over a period of time and by process of elimination have a clue how much other significant traders have.