Ok so I think we as a community can drive the price of stock via buying and selling it (similar to real life).
If we all buy PIS on BAWSAQ over the next 2 days the price should go through the roof (it's like 2.50 now but was 150.00 a week ago, so the potential is there). Then at 2200 (10PM) GMT Monday night we all sell our PIS, making huge gains in the process and driving the price of PIS to near zero come Tuesday AM (making it a great investment for those going for GTAO).
We are all selling at the same time so no one gets screwed holding on to this artificially inflated stock (we are artificially inflating it with our purchases).
To participate in this 'insider trade' with zero risk simply follow these few steps.
1) cash out all your assets and save the game.
2) spend every dollar you have on Pisswasser
3) sit back and relax until Monday night, and don't worry about selling right at 10 PM, R* is very slow to update and the prices will be pretty constant until Tuesday AM.