I guess the bounce back is nothing else than the stopping of the "Paintree" selling pressure.
Without that overhang on the market the SP would never have gone down that far. There was no change in the company or the companies developments which are known to the market which could have caused that drop.
The overhang is gone, so we should normally go to where we have been before. To the 1,50 - 1,75 range. I think this is just the correction to share price drop without reason.
Hope "Paintree" will not be any longer any pain for us. If the share price of POET rises their should be no need for them anymore to sell any POET shares related to their NAV value.