- The report predicts adjustments in the constituents of the CSI 300 Index, with 11 stocks expected to be adjusted. Predicted additions include Huadian New Energy, Shenghong Technology, and Shanghai Electric, while removals include Nasda, Xingyu Shares, and Foster. The additions are primarily concentrated in the electronics sector, with five stocks selected, while removals are mainly from the power equipment and automotive sectors, with four stocks removed from the power equipment sector[2][13][14] - The report predicts adjustments in the constituents of the CSI 500 Index, with 50 stocks expected to be adjusted. Predicted additions include Beiqi Blue Valley, Electric Investment Energy, and OFILM, while removals include Shenghong Technology, Ruixin Micro, and Xinnowei. Some additions to the CSI 500 Index come from the original constituents of the CSI 300 Index, such as Lu'an Huaneng, Trina Solar, and Baiyunshan, while some removals from the CSI 500 Index transition to the latest constituents of the CSI 300 Index, such as Shenghong Technology, Ruixin Micro, and Guolian Minsheng. Additions are mainly concentrated in the power equipment, electronics, and automotive sectors, while removals are concentrated in the pharmaceutical, electronics, and computer sectors[3][16][18] - The report highlights the event return characteristics of sample adjustments for the CSI 300 and CSI 500 indices. It notes that the market tends to react in advance to the impact of constituent adjustments, with stock prices rising before additions and falling before removals. Specifically, stocks added to the indices exhibit positive excess returns before the adjustment date, while stocks removed from the indices show negative excess returns before the adjustment date[4][5][23]