Give IMF a call and ask if they are considering launching a class action. Very early days yet but there is no doubt they will kick off an investigation soon and determine whether they could take them on and win and whether or not there is enough in it for them (They will take 30% of any win after legal costs are paid).
The fund managers who have invested heavily will no doubt aproach them even if smaller shareholders don't.
HST Price at posting:
16.0¢ Sentiment: None Disclosure: Not Held