商业航天概念，大爆发

Market Overview - A-share market shows mixed performance with the three major indices fluctuating, where the Shanghai Composite Index rises while the ChiNext Index experiences a pullback [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.2 trillion yuan, an increase of 509 billion yuan compared to the previous trading day [1] Sector Performance - The commercial aerospace sector remains active, with Shenjian Co. achieving a six-day consecutive rise and Jiuding New Materials recording a three-day consecutive rise, along with over ten stocks hitting the daily limit [3] - The robotics sector shows strength, with multiple stocks such as Wanxiang Qianchao and Xusheng Group hitting the daily limit [3] - The paper-making sector experiences a surge, with stocks like Bohui Paper, Yibin Paper, and Wuzhou Special Paper reaching the daily limit [3] - The digital currency sector also sees an increase, with stocks like Zhengtong Electronics and Jinshi Technology hitting the daily limit [3] - On the downside, the precious metals sector faces significant declines, with Haotong Technology dropping over 7% [3] - The Hainan Free Trade Zone concept declines, with stocks like Hainan Ruize and Caesar Travel weakening [3] Index Performance - At the close, the Shanghai Composite Index increased by 0.29%, while the Shenzhen Component Index decreased by 0.11%, and the ChiNext Index fell by 0.37% [3]