Hi Silso
Have been doing a bit of digging on this, which is all new to me as I have not seen this before.
S3 XT Block Special Crossing which basically means it's special size (usually large) cross trade, maybe for warrants. The cat 3 bit
https://asic.gov.au/regulatory-resources/markets/market-structure/block-trade-tiers/ Interesting to note that at 12.59 another large trade SX XT for 190 000 took place.
Seems to me that when any company becomes recommended strong buy, the accumulators come out of woodwork and the buy and sell becomes very erratic.
Will have to wait and see what next week brings
Cheers
(20min delay)