Could be we are just following the US adjusted for exchange rate changes. Imo price based on US should probably be around .0045 but Asx only has 3 decimals. This is just the SP's on same chart, I played with the min's to align.
If we use the AUD as a base and convert to US price by x 200 (ADR ratio) & exchange rates we get something like this
If we use the US as a base and convert to AUD price by / 200 (ADR ratio) & exchange rates we get something like this
Otherwise it beats me and the volume hasn't been large relative to shares on issue.
Cheers