100 bagger ?, page-671

I was just reading my CPA module study guide and in particular the topic of materiality. This is in terms of financial reports, but it says that 'observing user or market responses to information' can be used to determine materiality. An example of this is responses to particular transactions or disclosures by external parties such as analysts... so where im going with this is that if the SP barely changed After the fruitbox announcement, could they deem it was not material due to the market response from the original announcement and therefore no need to report if it was cancelled?

Just a thought I had, obviously ASX listing rules could have much different principles and interpretations.