As I'm sure you know, that billion dollar market cap has not been adjusted for the 1:200 reverse split.
What I think we will see in the near term is people selling because what used to be a decent sized position has been reduced to something too small to bother hanging onto. Like a thousand shares reduced to 5 shares; even 10,000 shares reduced to 50 shares. Meanwhile, I'm sure insiders will get new options to leave themselves undamaged by the r/s. All in all, some dirty deeds from down under.