A trading volume of zero is a pretty good indicator to me that nothing "immense" is brewing.
It is an indication that POET is at a crutial stage where there can be no leaks.
A comment from the Toronto meetings.
1. A statement was made by a member of the management team that "I wish I could buy". No one asked for clarification or asked why.
2. As far as I can tell management is currently not talking to anyone I suspect that is to avoid any accidental disclosure.