 Finance and Wikinvest use respectively the symbols "AS51" ".AXJO" "^AXJO" and "AXJO" to refer to this index.The ASX 200 webpage offers a Sharemarket game as an educational tool with $50,000.00 AUD virtual cash.The ASX 200 is "capitalization-weighted", meaning a company's contribution to the index is relative to its total market value i.e.