市场冲高回落，创业板指半日跌0.4%，商业航天概念集体回暖

Group 1 - The market experienced a pullback after an initial rise, with all three major indices turning negative by midday. The Shanghai Composite Index fell by 0.15%, the Shenzhen Component Index decreased by 0.17%, and the ChiNext Index dropped by 0.4% [1] - The trading volume in the Shanghai and Shenzhen markets reached 1.77 trillion yuan, an increase of 142.6 billion yuan compared to the previous trading day [1] - Over 3,200 stocks in the market saw gains, indicating a broad participation in the upward movement before the pullback [2] Group 2 - The commercial aerospace sector showed a strong recovery, with several stocks hitting the daily limit up, including Jieli Sockets and Zhongchao Holdings [2] - The oil and gas sector continued its strong performance, with stocks like Intercontinental Oil and Gas also hitting the daily limit up [2] - The coal sector experienced a rapid increase, with Dayou Energy reaching the daily limit up [2] - The robotics sector showed repeated strength, with stocks such as Fulei New Materials and Yichang Technology hitting the daily limit up [3] - In contrast, the precious metals sector faced a pullback, with West Gold and Xiaocheng Technology both declining by over 5% [3]