Jin Rong Jie·2025-05-27 07:59Core Points - The Shanghai Composite Index opened lower but experienced a slight increase of 0.25%, closing at 3247.93 points with a trading volume of 47.586 billion yuan [1] - Over the past month, the index has risen by 1.60%, by 1.48% over the last three months, and by 0.54% year-to-date [1] Industry Analysis - The Shanghai Stock Exchange categorizes listed companies into five major sectors: Industrial, Commercial, Real Estate, Public Utilities, and Comprehensive [1] - The index reflects the economic conditions and overall performance of companies within these sectors, with a base date of April 30, 1993, and a base point of 1358.78 [1] Index Composition - The top ten weighted stocks in the Shanghai Composite Index include: - Industrial and Commercial Bank of China (12.82%) - Agricultural Bank of China (11.84%) - Bank of China (7.83%) - China Merchants Bank (6.09%) - China Life Insurance (5.41%) - China Telecom (4.11%) - Ping An Insurance (3.88%) - Industrial Bank (3.17%) - Shanghai Pudong Development Bank (2.39%) - CITIC Securities (2.11%) [1] - The financial sector accounts for 75.80% of the index, followed by Industrial (7.47%), Communication Services (6.66%), Consumer Discretionary (2.88%), Healthcare (2.34%), Information Technology (1.94%), Real Estate (1.06%), Consumer Staples (0.79%), Energy (0.71%), and Materials (0.35%) [2] Sample Inclusion Criteria - Securities are included in the index after three months of listing if they rank in the top ten by average total market capitalization; others are included after one year [2] - Securities under risk warning are removed from the index starting the second Friday of the month following the warning, while those that have their warning lifted are included the same way [2]