A股冲高回落，三大指数全部翻绿，下跌个股近1900只

Group 1 - The A-share index experienced a pullback after an initial rise, with all three major indices closing in the red, and the ChiNext index briefly rising by nearly 1.3% in the morning session [1] - The major sectors that saw declines included non-ferrous metals, semiconductor chips, and the power grid, with nearly 1,900 stocks in the Shanghai, Shenzhen, and Beijing markets declining [1] - The Shanghai Composite Index closed at 4,113.75, down 0.08%, with 1,393 gainers and 871 losers, while the Shenzhen Component Index fell 0.14% to 14,235.17, with 1,833 gainers and 992 losers [2] Group 2 - The large aircraft concept stocks continued to rise, with Hangfa Technology achieving a four-day streak of gains, and several other companies like Runbei Aerospace and Triangle Defense seeing significant increases [2] - According to Dongfang Securities, the C919 aircraft has completed domestic transportation for hundreds of thousands of passengers, indicating sufficient market validation, and the acceleration of international certification is expected to enhance China's global positioning in large aircraft [2] - The photovoltaic sector showed strong performance, particularly in the space photovoltaic segment, with JunDa Co. hitting the daily limit, and several other companies following suit [3] - A report from Shenwan Hongyuan indicated that China has submitted applications for over 200,000 satellite constellations, marking a new phase in the large-scale deployment of commercial space, which will directly drive long-term demand for space photovoltaics [3]