If iv - $61,74 dated 11.11.2016-11-11 and
v-III=etr - $80,47 dated 2018-05-17 =>
fib 61,8% - $68,89
fib 76,4%-$66,16
as the wave II (from 2016-08-18 till 2016-11-11) was an Irregular Flat, than the forming corrective wave VI 'd be any Zigzag, possibly, an expanding double triangle WY which Y might have one of above calculated fibs' pivots...