Group 1 - The Shanghai Composite Index opened lower and the CSI 300 Food Index reported 7270.47 points, indicating a recent decline in the food sector [1] - The CSI 300 Food Index has decreased by 2.82% over the past month, 7.95% over the past three months, and 10.52% year-to-date [1] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries, providing a comprehensive analysis tool for investors [1] Group 2 - The CSI 300 Food Index is primarily composed of stocks from the Shanghai Stock Exchange, which accounts for 84.47%, while the Shenzhen Stock Exchange accounts for 15.53% [1] - Within the holdings of the CSI 300 Food Index, dairy products represent 61.67%, condiments and cooking oils account for 29.13%, and meat products make up 9.20% [1] Group 3 - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2] - Weight factors are generally fixed until the next scheduled adjustment, but can change with temporary adjustments due to special events affecting sample companies [2] - Companies that are delisted or undergo mergers, acquisitions, or splits will be handled according to specific calculation and maintenance guidelines [2]

Group 1 - The Shanghai Composite Index decreased by 0.40%, while the CSI 300 Food and Beverage Index reported at 25115.40 points [1] - The CSI 300 Food and Beverage Index has increased by 2.16% in the past month, 7.78% in the past three months, and 2.99% year-to-date [2] - The CSI 300 Index is categorized into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries, with a base date of December 31, 2004, and a base point of 1000.0 [2] Group 2 - The top ten weights in the CSI 300 Food and Beverage Index are: Kweichow Moutai (51.86%), Wuliangye (13.12%), Yili (9.68%), Shanxi Fenjiu (5.17%), Luzhou Laojiao (4.78%), Haitian Flavoring (3.64%), Dongpeng Beverage (2.92%), Yanghe (2.1%), Jinshiyuan (1.82%), and Gujing Gongjiu (1.36%) [2] - The market share of the CSI 300 Food and Beverage Index is 76.40% from the Shanghai Stock Exchange and 23.60% from the Shenzhen Stock Exchange [2] Group 3 - The industry composition of the CSI 300 Food and Beverage Index includes: Baijiu (80.20%), Dairy Products (9.68%), Condiments and Edible Oils (4.59%), Soft Drinks (2.92%), Beer (1.31%), and Meat Products (1.30%) [3] - The index sample is adjusted biannually, with adjustments implemented on the next trading day after the second Friday of June and December [3] - Weight factors are generally fixed until the next scheduled adjustment, with temporary adjustments made in response to changes in the CSI 300 Index samples [3]

从中证全指食品、饮料与烟草指数持仓的市场板块来看，上海证券交易所占比61.17%、深圳证券交易 所占比38.83%。 从中证全指食品、饮料与烟草指数持仓样本的行业来看，白酒占比47.83%、调味品与食用油占比 12.10%、乳制品占比12.04%、其他食品占比7.46%、软饮料占比6.48%、啤酒占比4.76%、休闲食品占比 4.02%、肉制品占比3.31%、葡萄酒及其他占比1.33%、黄酒占比0.66%。 资料显示，指数样本每半年调整一次，样本调整实施时间分别为每年6月和12月的第二个星期五的下一 交易日。权重因子随样本定期调整而调整，调整时间与指数样本定期调整实施时间相同。在下一个定期 调整日前，权重因子一般固定不变。遇临时调整时，当中证全指指数调整样本时，中证全指行业指数样 本随之进行相应调整。在样本公司有特殊事件发生，导致其行业归属发生变更时，将对中证全指行业指 数样本进行相应调整。当样本退市时，将其从指数样本中剔除。样本公司发生收购、合并、分拆等情形 的处理，参照计算与维护细则处理。 据了解，为反映中证全指指数样本中不同行业公司证券的整体表现，为投资者提供分析工具，将中证全 指指数样本按中证行业分类 ...