Group 1 - The China Securities Index Co., Ltd. announced adjustments to various indices including the CSI 300, CSI 500, CSI 1000, and others, effective after market close on December 12, 2025 [1] - The CSI 300 index will replace 11 constituent stocks, the CSI 500 will replace 50, the CSI 1000 will replace 100, the CSI A50 will replace 4, the CSI A100 will replace 6, and the CSI A500 will replace 20 [1] Group 2 - He Mai Co., Ltd. (688032.SH) has been removed from the CSI 500 index [2] - He Mai Co., Ltd. has been added to the CSI 1000 index [3] Group 3 - He Mai Co., Ltd. was listed on the Shanghai Stock Exchange's Sci-Tech Innovation Board on December 20, 2021, with an initial price of 557.80 yuan per share and a total issuance of 10 million shares [4] - The total funds raised from the initial public offering (IPO) amounted to 5.578 billion yuan, with a net amount of 5.406 billion yuan after deducting issuance costs [4] - The company has announced several dividend plans, including a distribution of 30 yuan per 10 shares in May 2022, 53 yuan per 10 shares in June 2023, and 36 yuan per 10 shares in June 2024, along with stock bonuses [4]
破发股禾迈股份"出局"中证500指数 2021上市超募48亿