EDIT YOUR COMMENT この情報をきっかけに初めてまともに意識しましたが、面白い比率ですね。 参考までにFTSEに『Ground Rules for the Management of the FTSE Global Equity Index Series』なるものがあったので、この比率を決める箇所の一部を抜粋させていただきます。 (http://www.ftse.com/Indices/FTSE_Global_Equity_Index_Series/Index_Rules/index.jsp) ●Large Companies at or above 68% of the Index Universe by full market capitalisation with a weight greater than 0.04% of the current respective regional All-World Index by full market capitalisation ●Mid Companies ranked below 68%, but within the top 86% of the Index Universe by full market capitalisation with a weight greater than 0.04% of the current respective regional All-World Index by full market capitalisation ●Small Companies ranked below the top 86%, but within the top 98% of the Index Universe by full market capitalisation or have a weight less than 0.04% of the current respective regional All- World Index by full market capitalisation Secret SEND DELETE