"So the market was not right the few days before the PO?"

The market was not right before the PO was announced, where the SP was much higher.

The market was not right when the POET SP was $2.87

IMO, the market just does not have enough information about POET's progress right now, so the market assumes the worst, and has a difficult time determing what is right or wrong.

Time will tell.

Good luck!!