After holding for a few years and seeing the past hx of this price action in NSYS I choose to sell 2/3 of my position on the spike. Now that the frenzy is over, maybe now is the time for more orderly accumulation.
Not moving down now, may start tomorrow. Gosh I like trading this thing. A screwed up government, constant turmoil with muslim radicals, and a greedy populas with their hand out constantly sure makes the market fun.