Thanks jzm, great link, and from the bottom of that page nicely...

Thanks jzm, great link, and from the bottom of that page nicely explains the different ASX groupings...

S&P/ASX Small Ordinaries
? 10% of market capitalisation
for Australia
? 200 companies in the index
? Made up of companies
ranked 101-300

http://www.standardandpoors.com/servlet/BlobServer?blobheadername3=MDT-Type&blobcol=urldata&blobtable=MungoBlobs&blobheadervalue2=inline%3B+filename%3DMapOfMarket_2010.pdf&blobheadername2=Content-Disposition&blobheadervalue1=application%2Fpdf&blobkey=id&blobheadername1=content-type&blobwhere=1243769918111&blobheadervalue3=UTF-8


How Do The S&P/ASX Indices
Compare To The S&P/ASX All
Ordinaries Index?
S&P/ASX All Ordinaries Represents
- 98% of market capitalisation for Australia
- The 500 largest companies selected solely on
market capitalisation

Great reading! thanks!