Group 1 - The A-share market indices closed mixed, with the Shanghai 380 Fundamental Weighted Index down by 0.25% to 7564.86 points, with a trading volume of 89.644 billion yuan [1] - The Shanghai 380 Fundamental Weighted Index has decreased by 5.23% over the past month, increased by 0.61% over the past three months, and has fallen by 3.71% year-to-date [1] - The index employs a fundamental value weighting method to mitigate the over-allocation of high-valuation stocks typically seen in traditional market capitalization indices [1] Group 2 - The top ten holdings of the Shanghai 380 Fundamental Weighted Index include: Jianfa Co. (5.1%), Wuchan Zhongda (3.35%), Xiamen International Trade (3.1%), Xiamen Xiangyu (2.29%), Shanghai Construction (2.05%), Huayu Automotive (1.98%), Chongqing Rural Commercial Bank (1.98%), Shanghai Rural Commercial Bank (1.87%), Chengdu Bank (1.68%), and Changsha Bank (1.41%) [1] - The index is entirely composed of stocks listed on the Shanghai Stock Exchange, with a 100% allocation [1] Group 3 - The industry composition of the index shows that industrials account for 34.79%, materials for 13.49%, finance for 13.15%, consumer discretionary for 9.59%, energy for 6.11%, healthcare for 5.59%, information technology for 4.25%, utilities for 3.92%, communication services for 3.40%, real estate for 2.90%, and consumer staples for 2.80% [2] - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December each year [2] - In special circumstances, the index may undergo temporary adjustments, such as when a sample stock is delisted or undergoes mergers, acquisitions, or splits [2]