As I've said before, I don't think short sellers are really bearish on RVX, but rather that they've been using shorting as a means to drive the price down with an eye to accumulating a significant line.
I notice we're seeing a wider spread of late....which is a great little tool MMs have for cooling off trading. The volumes have really dried up now and I'm thinking/hoping that the outstanding short interest, that those behind it might just have to suck it up and bid the price up to clear it out.