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The weights of each component in the TG Index that will be applicable from the 1st business day of April 2012 has been decided as follows:
In principle, the weight of each component is reviewed every December. The newly reviewed weights will be applicable from 1st business day of April the following calendar year to the last business day of March the next year.
The weights are determined according to the average scale of the cash market of each component for the past 3 years; 2 years prior to the year of calculation.
TG Index URL: http://www.tge.or.jp/english/price/tgeindex.shtmlIndex
