据了解，中证中小国企改革指数选取全部发生及拟发生国企改革的中小国企上市公司作为待选样本，已 被中央和地方国资委列为国企改革试点、或已出台相关重大资产重组方案、或已出台相关国企改革方 案、或已完成国企改革的上市公司优先入选并最终确定具有代表性的上市公司作为样本，以反映中小国 企改革主题的整体表现。该指数以2013年12月31日为基日，以1000.0点为基点。 金融界7月9日消息，A股三大指数收盘涨跌不一，中证中小国企改革指数 (中小国改，930611)报2071.09 点。 数据统计显示，中证中小国企改革指数近一个月上涨2.79%，近三个月上涨8.08%，年至今上涨1.23%。 从中证中小国企改革指数持仓样本的行业来看，工业占比43.54%、原材料占比18.97%、信息技术占比 16.32%、主要消费占比5.59%、可选消费占比4.53%、公用事业占比4.29%、房地产占比2.65%、医药卫 生占比2.58%、通信服务占比1.54%。 资料显示，指数样本每季度调整一次，样本调整实施时间分别为每年3月、6月、9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 ...

Core Viewpoint - The China Securities Index for Small and Medium-sized State-owned Enterprise Reform has shown a mixed performance, with a recent increase but a decline over the year, reflecting the overall state of state-owned enterprise reforms in China [2][3]. Group 1: Index Performance - The China Securities Index for Small and Medium-sized State-owned Enterprise Reform (Index Code: 930611) opened high and closed at 1969.09 points [1]. - Over the past month, the index has increased by 3.05%, but it has decreased by 0.97% over the last three months and by 3.47% year-to-date [2]. Group 2: Index Composition - The index includes all small and medium-sized listed companies undergoing or planning state-owned enterprise reforms, prioritized by their significance in reflecting the overall performance of the reform theme [2]. - The top ten weighted companies in the index are: Yuntianhua (3.32%), Jianghuai Automobile (3.27%), China Great Wall (2.97%), Huagong Technology (2.92%), Goldwind Technology (2.90%), China Rare Earth (2.77%), Western Superconducting (2.58%), AVIC High-tech (2.31%), Siwei Technology (2.29%), and Shanghai Beiling (2.25%) [2]. Group 3: Market and Sector Breakdown - The index's holdings are primarily from the Shanghai Stock Exchange (54.08%) and the Shenzhen Stock Exchange (45.92%) [2]. - In terms of industry composition, the index shows: Industrial sector (43.16%), Materials (18.28%), Information Technology (17.20%), Consumer Staples (5.79%), Consumer Discretionary (4.28%), Utilities (4.25%), Real Estate (2.71%), Healthcare (2.60%), and Communication Services (1.73%) [3]. Group 4: Sample Adjustment - The index samples are adjusted quarterly, with adjustments occurring in the second Friday of March, June, September, and December [3]. - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [3].