It is not a complex calculation. Its a simple correlation of volume where it meets is the opening price the ONLY options in this case are 0.3 or 0.4. It opened at 0.3, PJs order was late for whatever reason so he/she bought at 0.4.
Not complicated.....
On another note I think my punt on the aynoas might have been a boo boo, worst part probably wont be able to get out to realise a loss, will have to hope delisted will offer a solution.
