I have seen it said by several people here that the pps can't go lower or that the next step down is "no bid". correct me if i'm wrong but i believe there is a number below .0001. it's called .00009. but no matter how many shares are traded(over 120 million one day this week) the price never goes lower than .0001 I believe this is because the MM's don't want to allow people to buy shares at .0001 IMO.