If the current situation is in fact 4% fees and 150% margin, I need to rethink my general rules. However, if you look at where UGAZ was priced on my entry days (Dec 4th and Dec. 7th), shorting DGAZ performed far better, assuming there's no stealth 4% fee as someone mentioned.
Did u even take this trade ? It seems u didn't face any maintenance margin or fees (a little over 4% a year )
Plus u just reappeared when DGAZ crashed to claim u closed ur position then, nevermind the heat in the meantime
NG is still going up btw, this trade started a few days later would have looked great.