RE: 20,000 share block just traded bring up the daily chart on ARU and look closely and you will see how the players are manipulating the action today.
It opens a bit weak and then at precisely 10:15 they run the stops ...look at the volume lines and you will see they are very compact compared to normal trading. This is the stops being taken out by the MM's who can see everyones stop orders. Then they take out all the offers running it back up to 32.50 and then gently sell it down take the profits and try to walk it down for another kick at the can.
They let it drift on the negativity until it is almost back to where the 30,000 trade was earlier and they trade another 20,000 share block....lets see what happens next.....I think another run up towards the close?