MSCI later today will announce an increase in the weighting of mainland China in its MSCI Emerging Markets Index 891800, -0.22% 891800, -0.22%, a benchmark used by many global funds and ETFs, including the iShares MSCI Emerging markets ETF (EEM), according to CNBC. They will announce an additional inclusion of roughly 175 midcap mainland China stocks in its global indices, and also increasing the weighting of 268 large-cap mainland stocks that are already in the index. The increased weightings will go into effect on November 26th. The addition will raise the weighting of mainland China stocks from roughly 3% to 4% of the index value. China stocks–including those listed in Hong Kong as well as those listed in the U.S. (like Alibaba), are already about 30% of that index and its weighting will now increase.