I have just summarized the 30 components stocks that made up Straits Time Index (STI) and their respective weightage based on the market cap as of Jan/10.
Do note that STI is a market capitalization weighted index and thus involves the total market capitalization of the companies weighted by their effect on the index. This means that larger stocks would make more of a difference to the index as compared to a smaller market cap company. (E.g. Capitalland (3.96%) will need to move “3 times more” as compared to Singtel (11.59%) in order to shift the STI)
It is always good to know what are the respective weightage for individual company and their effects on STI especially when trading STI ETF.
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