The ASX wont take any responsibility for the NXXT trades not affecting last price or firing alters. They simply blame it on ASIC.
They say that it was implemented at ASIC's request to show trades across multiple markets.
I wonder if ASIC are aware the NXXT codes are now being widely used internally within brokerages to cross trades on in-house systems, and very few are cross-market trade reports.
So for example, on PNO today has not had ANY matched orders on the ASX, yet it does not trade on the CHI-X.
The only volume showing are behind the scenes crossings done internally at brokerages, hence no trading has taken place (matched orders) and hence no last price update or alters triggered!
I wonder if ASIC even cares about how it's new trade reports are being used.