Yeah same for me... when I wrote the question to you I thought to myself... what are their names again? Sam on equity options. Some Frenchie on index... Thibo I think his name was...
I do trade them with IB. Both VStoxx and and the etp EXIV, which is short VStoxx 30 days. The market is great for diversifying between regions. I also trade the NKVI, Nikkei vix futures. Btw, the EXIV seems to be getting greater leverage than vix products at IB right now. I don't know why, but they'll let me trade a larger market value with EXIV than Xiv. That matters, ever since they their recent crackdown vol products.