been holding it since $6.35...
good time to book profit, or continue to hold?
It is a very good time now to book some profit since you bought from $6.35 and in my opinion, you already got a good sum of profit from that. As for OP I predict it would dump sooner or later and I'm sad to say that it is too late to invest in NEO. Instead of looking to invest into NEO, go look for another profitable coin to buy now. That way you won't need for NEO's dump.