Guys, I'm shorting a put -- not the stock, not a call. The stock can go to 1,000 for all I care; I pocket the small premium, if it stays above 20. If it goes to 0, it's put to me at 20, which means I am down 20 -- my max loss.
Clearly there a broad consensus by other posters here as well as IB that SVXY may break strong support at 0.00 and trade into the negatives!
I already provided correct answer above. No need to continue beating the dead horse. The OP can simply verify it.
You made a guess at an overall requirement, There are people who say that losses can be unlimited. I would like to see mathematical proof.