Group 1 - Tian Tong Co., Ltd. experienced a decline of 5.07% on November 4, with a stock price of 9.74 CNY per share, a trading volume of 534 million CNY, a turnover rate of 4.36%, and a total market capitalization of 12.014 billion CNY [1] - The company, established on February 10, 1999, and listed on January 18, 2001, is located in Haining Economic Development Zone, Zhejiang Province. Its main business includes the research, manufacturing, and sales of electronic materials (including magnetic materials, sapphire, piezoelectric crystals, etc.) and high-end equipment [1] - The revenue composition of Tian Tong Co., Ltd. is as follows: 86.57% from electronic materials sales, 9.38% from specialized equipment manufacturing and installation services, and 4.05% from material sales and others [1] Group 2 - Among the top ten circulating shareholders of Tian Tong Co., Ltd., a fund under Southern Fund ranks first. The Southern CSI 1000 ETF (512100) reduced its holdings by 113,700 shares in the third quarter, holding a total of 11.2785 million shares, which accounts for 0.91% of the circulating shares [2] - The estimated floating loss for the Southern CSI 1000 ETF today is approximately 5.8648 million CNY. The fund was established on September 29, 2016, with a current scale of 76.63 billion CNY [2] - Year-to-date, the Southern CSI 1000 ETF has achieved a return of 28.02%, ranking 2029 out of 4216 in its category. Over the past year, it has returned 28.69%, ranking 1809 out of 3896, and since its inception, it has returned 13.29% [2]