Interestingly, I was buying the other day through Etrade, or ANZ trading as it is now called.
The market was showing as buy price of 58 cents, the sell was 58.5. I could not be bothered to quibble over half a cent, so I put in my orders to hit the sell price at 58.5
What was interesting was that they actually got filled at 58.25 which was not even a price option for me via Etrade.
So, maybe those trades are similar.
TGA Price at posting:
58.5¢ Sentiment: Buy Disclosure: Held