If you attempt to force Australian investors to hold (nasdaq listed) common stock, there will be an exodus from the register and the SP will plummet.
The ASX listing is NOT holding back the SP, if American investors wanted UNS enough they could buy CDI's and convert them.
The truth is that US investors aren't fully convinced of the UNS story yet, and are adopting a "wait and see" attitude. I'm not sure what they are waiting for, it may be more concrete sales and revenue figures, contracts with other pharmas, whatever.
But the dual listing structure is NOT to blame.
oh yeah, "IMO" lol
UNS Price at posting:
$1.12 Sentiment: None Disclosure: Held