Group 1 - The Shanghai Small Cap Index rose by 1.85%, closing at 5425.19 points, with a trading volume of 253.807 billion yuan [1] - The Shanghai Small Cap Index has increased by 8.99% over the past month, 15.32% over the past three months, and 15.03% year-to-date [1] - The index categorizes listed companies in the Shanghai market into different sizes based on market capitalization and trading volume, reflecting the overall performance of various scales of listed companies [1] Group 2 - The top ten weighted stocks in the Shanghai Small Cap Index include Shanghai Electric (1.07%), Chipone Technology (0.97%), Sichuan Changhong (0.85%), Dongwu Securities (0.81%), and others [1] - The index is composed entirely of stocks listed on the Shanghai Stock Exchange, with a 100% representation [1] - The industry composition of the index shows that industrials account for 22.41%, information technology for 21.56%, materials for 12.39%, and financials for 10.42% [2] Group 3 - The index sample is adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2] - Sample adjustments generally do not exceed 10%, and changes are automatically reflected in related indices [2] - Special circumstances may lead to temporary adjustments, such as delisting or corporate actions like mergers and acquisitions [2]

金融界7月15日消息，A股三大指数收盘涨跌不一，上证小盘指数 (上证小盘，000045)下跌0.56%，报 4785.48点，成交额1421.22亿元。 数据统计显示，上证小盘指数近一个月上涨4.76%，近三个月上涨5.96%，年至今上涨3.92%。 据了解，上证大中小盘系列指数按照市值和成交量水平将沪市上市公司证券分为中盘、小盘、中小盘、 大中小盘，以反映不同规模上市公司证券的整体表现。该指数以2003年12月31日为基日，以1000.0点为 基点。 从指数持仓来看，上证小盘指数十大权重分别为：上海电气（1.03%）、赤峰黄金（0.9%）、东吴证券 （0.81%）、四川长虹（0.81%）、天风证券（0.76%）、九号公司（0.75%）、瑞芯微（0.71%）、永泰 能源（0.71%）、亨通光电（0.67%）、芯原股份（0.66%）。 从上证小盘指数持仓的市场板块来看，上海证券交易所占比100.00%。 从上证小盘指数持仓样本的行业来看，工业占比22.62%、信息技术占比20.63%、原材料占比12.00%、 金融占比10.68%、医药卫生占比8.86%、可选消费占比7.36%、通信服务占比5.27%、主要消费 ...

Group 1 - The A-share market's three major indices closed mixed, with the Shanghai Small Cap Index down 0.69% at 4495.05 points and a trading volume of 99.392 billion [1] - The Shanghai Small Cap Index has decreased by 6.52% over the past month, increased by 1.38% over the past three months, and has fallen by 2.26% year-to-date [1] - The index categorizes listed companies in the Shanghai market into different sizes based on market capitalization and trading volume, reflecting the overall performance of securities from various scales of companies [1] Group 2 - The top ten weighted stocks in the Shanghai Small Cap Index include Hu'nong Commercial Bank (1.18%), Chifeng Gold (1.11%), Chengdu Bank (1.07%), and others, with the index fully composed of stocks from the Shanghai Stock Exchange [1] - The industry composition of the index shows that industrials account for 23.59%, information technology for 18.17%, and financials for 12.57%, among others [2] - The index sample is adjusted biannually, with changes implemented on the next trading day after the second Friday of June and December, typically not exceeding 10% of the sample [2]