I note hopefully this company has reached its peak for now since the increasing Australia dollar decreases their profits. They are open to govt regulations. Also the fall out fro the flu vax problems a few years ago could result in litigation problems. They skimmed a larger proportion of the batches to cope with the sudden flu worry (old Biota days) but unfortunately the result was a larger protein load and subsequent reaction including a brain damaged child. Their buy backs have held the shares and increase volumes during weak times but my feeling is the company will no longer be able to provide this support. It is VERY unlikely they could get to $80 upside limited this year until it plays out.
