How are the Indexes calculated?

[pcd]

I know its got something to do with the sum of the price * market cap, but how do we then get to something like 4840? Being the ASX200 price at the moment.

Is there anywhere I can get the GCIS Sector index information? If the initial question can be answered I can calculate the information, but if the historical values are available, it will save me some time.


pcd

 

[Timmy]

The methodology for calculating an index can be quite detailed. This link will take you to a 26-page document from S&P about how the S&P Australian indices are calculated:
http://www2.standardandpoors.com/spf/pdf/index/SP_Australian_Indices_Methodology_Web.pdf

There is more general information at:
http://www.asx.com.au/asx/statistics/indexInfo.jsp

http://www2.standardandpoors.com/po...s_asx200/2,3,2,8,0,0,0,0,0,2,1,0,0,0,0,0.html

http://www2.standardandpoors.com/po.../indices/2,3,1,0,0,0,0,0,0,0,0,0,0,0,0,0.html