商业航天概念，再度走强

Market Overview - The A-share market experienced fluctuations in the morning session, with the ChiNext index initially rising over 1% before retreating [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.07 trillion, an increase of 20 billion compared to the previous trading day [1] Sector Performance - The commercial aerospace sector showed signs of recovery, with Aerospace Power hitting the upper limit and Shunhao Co. achieving four consecutive trading limit ups [3] - The coal sector saw a rapid increase, with Antai Group achieving two consecutive trading limit ups, and Dayou Energy and New Dazhou A also hitting the upper limit [3] - The Fujian sector was active, with Hai Xin Food achieving six consecutive trading limit ups and Sun Cable achieving two consecutive trading limit ups [3] - The superhard materials concept strengthened, with Huanghe Xuanfeng reaching the upper limit [3] - In contrast, the AI application sector collectively weakened, with Fushi Holdings dropping nearly 11% [3] Index Performance - By the end of the trading session, the Shanghai Composite Index fell by 0.09%, the Shenzhen Component Index decreased by 0.19%, and the ChiNext Index dropped by 0.5% [3]