They know that some punters will be happy to sell at 43 and so they test their resolve, clearly making a fortune on the spread. NEX does us no favours as it influences the sp and we can't see the live trades without being on its platform too.
It’s just punters selling and buying small amounts, conspiracy theories abound. Wouldn’t bother getting upset over this nonsense, see you on the other side of a multi bagger have great w/e bring on the results.