My knowledge is limited on that. It seems that you can talk to your broker and ask the same question whether you have to register or not and what happens if you don't and how it will affect your tradings in terms of commissions , data feed registrations,.... after .you sign upI see. Would that I could. My brok frm got back to me and said I passed the threshold 4 times last month. So in this instance I had to. The best advice I can give anyone that needs help though. Their customer service and tech support lines are absolute gems. Easy to call and interact with. Very helpful.