$SVXY #coveredcalls I am looking…

$SVXY #coveredcalls

I am looking for advice – what could go wrong?
I own stock at $131 (paid*) with a short Dec 16 $100 call presently worth $65.50 (sold for $36.50 before I purchased stock to cover*).
I am considering rolling up to $140 call for $30db. My calculations show, if called away in Dec, I will get an additional $10 per share. Am I wrong? What am I missing?
Thank you.
*edit to clarify costs profitable