I think the people expected too much. Some guy twittered about three great announcements, and they all thought it had something to do with china's regulation.
But it hadn't and so they were disappointed, noone knew what the three announcements were and then this culminated into a panic selling.
It was also kind of bad marketing I think.
This was really stupid because there were lots of good news (one is the upcoming DevCon with Microsoft) and not one bad news.
But I see Neo slowly rising again. Imho Neo/Gas is very undervalued now
I haven't followed NEO for a long time now, I just saw a few when Chinese ban ICO's in September and I though I will revisit and see how it'd impact with the news. For sure NEO went down hard but has regained as of late.
But then this new announcement that didn't went into fruition so basically all those that are expecting something great did get what they waiting for so immediately sell and get out. If you are still inside and trap then the best thing is just hold on it and hope that it will soon go up.