In my update posted on 3 May 2019 I pointed your attention to a good LONG setup in GDX. I wrote:

“I can count that decline shaped as (a)-(b)-(c) as a large corrective wave B down of 3 up. That implies that the next move up may be the strongest part of the rally in a wave C of 3.”

Then GDX jumped out of the Green Target Box but later came back down to retest it again making a higher low.