Core Insights - The report provides data on the shareholding ratios of institutional investors in publicly listed companies from 2024 to 2003, focusing on the collective ownership and network connections among these investors [1]. Group 1: Methodology - The methodology involves creating a network of institutional investors based on their shared ownership of companies, where a connection is established if two investors hold at least 5% of the same company's shares [1]. - The analysis constructs an adjacency matrix to identify investor groups and calculates the shareholding ratios of these groups using specific formulas [1]. - Three final indicators are derived: CliqueOwnership, CliqueHerfindahl, and CliqueOwnTop1, all expressed as percentages [1]. Group 2: Data Overview - The dataset includes 68,000 samples and over 5,700 companies, providing original data, calculation codes, and final results for verification [1]. - The reference for the methodology is a study by Wu Xiaohui and others, which discusses the relationship between institutional investor clustering and stock price crash risk [1]. Group 3: Results Summary - The table presents the CliqueOwnership and CliqueHerfindahl percentages for various securities in 2024, indicating the level of institutional ownership concentration [2]. - For example, security code 000001 has a CliqueOwnership of 2.6491% and a CliqueHerfindahl of 4.0309%, suggesting a moderate level of institutional investor concentration [2]. - Other securities show varying levels of ownership concentration, with some like 001213 having a higher CliqueHerfindahl of 9.4287%, indicating a more concentrated ownership structure [2].

Core Insights - The report provides data on the shareholding ratios of institutional investors in publicly listed companies from 2024 to 2003, focusing on the collective ownership and network of institutional investors [1] - The methodology involves constructing a network of institutional investors based on their shared ownership of companies, with a threshold of 5% of the circulating shares to establish connections [1] - Three key metrics are derived: CliqueOwnership, CliqueHerfindahl, and CliqueOwnTop1, all expressed as percentages, which measure the concentration and dominance of institutional ownership [1] Summary of Metrics - The data includes 68,000 samples from over 5,700 companies, providing original data, calculation codes, and final results for verification [1] - For the year 2024, the following metrics were reported for selected securities: - Security 000001: CliqueOwnership at 2.6491% and CliqueHerfindahl at 4.0309% [2] - Security 000010: CliqueOwnership at 1.7578% and CliqueHerfindahl at 0.611% [2] - Security 001213: CliqueOwnership at 3.3882% and CliqueHerfindahl at 9.4287% [2] - The report highlights variations in institutional ownership concentration across different companies, indicating potential investment opportunities and risks based on these metrics [1][2]

Group 1 - The core viewpoint is that Hassett, a leading candidate for the next Federal Reserve Chair, emphasizes the importance of thorough analysis to ensure the right decision is made by the President [1][2] - The Justice Department will examine indicators such as the Herfindahl index, industry concentration, and the extent of competition reduction caused by the large merger [1][2]