The Australian All Ordinaries Index is a capitalization weighted index. The index is made up of the largest 500 companies as measured by market cap that arelisted on the ASX. The index was developed with a base value of 500 as of 1979 and is calculated by ASX/S&P. The groups of this index were discontinued on July5th, 2002. Please see AS51 Index GRPSfor the new groups.