Quote from Eric99:
Are you using the same number of contracts for both the DD and the calendar? If so, you're betting heavily on RUT being near 750 and the call side of the DD doesn't help you much.
Others might prop up the saggy bottom in the middle of your DD with a calendar or diagonal at a smaller size than the DD.
VXN today is 15.13%. It's been as high as 26%, but I might model it at 15% - 18%. The VIX is closer to its lowest low than the VXN is. And the ratio of highest VIX to VIX today (which I view as the vega opportunity) is higher than the corresponding VXN ratio. So I've been trying to put long vega positions on the SPX instead of the RUT.
My 2 cents.