Australia 200 is just a number that lets you track performance of the instruments comprising the index, so you can't invest in it directly. But you can buy Australia 200 futures or funds or invest in its components.
The lowest ever quote of Australia 200 is 3109.70 AUD. It was reached on Mar 9, 2009.
Australia 200 reached its highest quote on Mar 28, 2024 — 7928.40 AUD.