Trying to form a wave four--and wave fours have as many patterns as most people have in underwear. A pattern for everyday of the week.

Wave four is complete at the black line @64.9. In principle it has already hit sufficient height. The pattern is not complete though.

I prefer 50% retracement for fourth waves. The majority of them do it. I would use that as a basis when wave four is over. Other wise trade this with daily swings in this and that direction as a whole.