Just wait til everybody (and their cousins, brothers, mothers and fathers) from the California Board of Elections starts buying up all these MedMJ companies on the sly. And I thought insider trading was illegal, oh well.
Just because volume has returned to previous levels does not mean decrease in share price. If you look at volume before it went through the roof, price was increasing at low volumes.
The volume this last week was strong, but that was because of sell-offs after the vote; many people placed a bet (by buying more shares) that PPS would skyrocket if the vote was favorable.