LOL.
Nobody on this board believes this bankrupt, liquidated, out of business company is going anywhere, and the selling of stock, even for a nickel, when there's the fairy tale buyout of $1.64 being blasted around tells everything that needs to be known.
This is a pump and dump, with the volume turned up since the deadline for objections has passed and those sellers know full well there's a limited time to get out. The PPS on any given day is only relevant to those who seek to profit from selling their stock.
BioAmber is nothing but a pump and dump, just like every other OTC stock.