We have had significant announcements on the previous 6 Monday mornings Australian time before the ASX opened.
I think that was making Pensana too predictable to some of the game players on the ASX.
If I was Pensana management I would aim to release the "update on the BFS" announcement after the ASX closes one afternoon, and before the LSE opens.
That means that the first trading day's reaction is on the LSE where there are more would-be buyers and the LSE will frame the upcoming share price pattern rather than the ASX.