Ann: Zenith Half Year 2018 Earnings Update, page-9

It's fairly common practice and I think it arises when a board reviews all the accounts a few weeks out for release, realises they will be materially different from guidance and feels they need to disclose straight away due to Corps Act requirements. Of course management must have been aware for some time now that the results would be much higher.

Is it possible they could make a second half loss somehow? I would have thought that their recurring revenue would easily ensure they are running profitably in any given half.