noutram:  Believe you will see that most Americans, like Canadians, have seen the potential for some time and will let this run for some time before taking any profit.  I will take some profit when my gain is at 300%.  But also like in Canada there are daytraders who will be foolishly happy to take a one day +20%.  Those are just the not to birght traders we need to let off the occasional steam from this charging locomotive and thus allow it to keep climbing up this share price mountain.