15股筹码连续3期集中

Core Insights - The article highlights a trend of decreasing shareholder accounts among 145 companies, indicating a concentration of shares, with some companies experiencing declines for over three consecutive periods [1][2] Group 1: Shareholder Account Trends - 15 companies have reported a continuous decrease in shareholder accounts for more than three periods, with the most significant decline being 9 periods for Luoniushan, which has seen a total decrease of 12.62% [1] - Other companies with notable declines include Yihua New Materials, which has decreased by 32.29% over 7 periods, and Baoshui Technology, Huai Bei Mining, and others also showing significant reductions [1][2] Group 2: Market Performance - Among the companies with decreasing shareholder accounts, 8 have seen their stock prices rise, while 7 have experienced declines, with Luoniushan, Naipu Mining, and Hengbo shares showing increases of 27.53%, 16.62%, and 15.21% respectively [2] - 5 companies outperformed the Shanghai Composite Index during this period, with Luoniushan, Naipu Mining, and Hengbo shares achieving relative returns of 16.24%, 14.21%, and 12.79% respectively [2] Group 3: Industry and Institutional Interest - The industries with the highest concentration of companies experiencing declining shareholder accounts include electronics, basic chemicals, and machinery, with 3, 2, and 2 companies respectively [2] - In terms of institutional interest, 3 companies with decreasing shareholder accounts were surveyed by institutions in the past month, with Kai Run Co., Naipu Mining, and Jie Jie Microelectronics receiving attention from 47, 45, and 27 institutions respectively [2]