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]

Group 1 - The A-share market's three major indices closed mixed, with the Shanghai Small Cap Index down 0.56% at 4785.48 points and a trading volume of 142.12 billion [1] - The Shanghai Small Cap Index has increased by 4.76% in the past month, 5.96% in the past three months, and 3.92% 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 (1.03%), Chifeng Jilong Gold Mining (0.9%), Dongwu Securities (0.81%), Sichuan Changhong (0.81%), Tianfeng Securities (0.76%), Nine Company (0.75%), Rockchip (0.71%), Yongtai Energy (0.71%), Hengtong Optic-Electric (0.67%), and Chipone Technology (0.66%) [1] - The market sectors represented in the index include Industrial (22.62%), Information Technology (20.63%), Materials (12.00%), Financials (10.68%), Healthcare (8.86%), Consumer Discretionary (7.36%), Communication Services (5.27%), Consumer Staples (4.09%), Utilities (3.42%), Energy (2.81%), and Real Estate (2.28%) [2] - The index sample is adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December, with a sample adjustment ratio generally not exceeding 10% [2]

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]