... for a 1.06/contract credit.
Metrics:
Max Profit: 106/contract
Max Loss: Undefined
Break Even: No Put Side Risk/61.06
Delta/Theta: -14.82/2.72
Notes: High rank/implied at 41/59. I don't do these very often, but think downside risk is greater than upside, particularly due to call side skew (i.e., both shorts are set up at the 20 delta, but the put side is closer in price relative where the underlying is trading than the call side).
The basic notion behind the setup: total credit received exceeds the max loss metric of the short put vertical. Since short put vertical side is a one-wide, it has a standalone max loss metric of 1.00. The credit received exceeds that by .06, so even if GDXJ blows through 40, I'll still make money/not lose money if I do nothing, although I can certainly roll down the short call side to attempt to get something out of the play if it comes to that.
A defined risk counterpart of the same play would be something like the August 21st 41/42/55/60, put on for 1.00 or greater.