I do enjoy reading your balanced posts, i generally don't pay much attention to the preopen unless a big ann etc has come out. Like you said these tiny/small bids are insignificant when we've had had days of $6m+ in shares traded. I did find the bid at 8c amusing it's just someone making a $600 punt.
PIO Price at posting:
6.0¢ Sentiment: Buy Disclosure: Held