Group 1 - Qin Chuan Machine Tool experienced a decline of 5.06% on September 19, with a stock price of 14.44 yuan per share, a trading volume of 622 million yuan, a turnover rate of 4.22%, and a total market capitalization of 14.729 billion yuan [1] - The company, established on July 10, 1998, and listed on September 28, 1998, is located in Baoji City, Shaanxi Province, and primarily engages in high-end equipment manufacturing, focusing on high-end machine tools and complex cutting tools [1] - The revenue composition of Qin Chuan Machine Tool includes machine tools at 48.91%, components at 37.76%, tools at 8.64%, instruments and meters at 1.81%, other (supplementary) at 1.18%, trade at 1.04%, and other categories at 0.66% [1] Group 2 - Southern Fund's Southern CSI 1000 ETF (512100) entered the top ten circulating shareholders of Qin Chuan Machine Tool in the second quarter, holding 5.6406 million shares, which accounts for 0.56% of the circulating shares [2] - The estimated floating loss for the ETF today is approximately 4.3433 million yuan [2] - The Southern CSI 1000 ETF was established on September 29, 2016, with a latest scale of 64.953 billion yuan, achieving a year-to-date return of 26.83% and a one-year return of 71.65% [2]