午评：沪指半日涨0.24%，商业航天概念集体爆发

Market Overview - The market experienced a narrow fluctuation in early trading on December 24, with all three major indices turning positive. The small and mid-cap stocks showed strong performance [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.15 trillion yuan, a decrease of 89.5 billion yuan compared to the previous trading day [1] - Over 3,800 stocks in the market rose by the close, with the Shanghai Composite Index up by 0.24%, the Shenzhen Component Index up by 0.31%, and the ChiNext Index up by 0.08% [1] Sector Performance - The commercial aerospace sector continued to strengthen, with nearly 20 constituent stocks hitting the daily limit, including Superjet Co., Ltd. with a 20% increase, and Shenjian Co., Ltd. achieving five consecutive limit-ups [1] - The Fujian sector also showed renewed strength, with Anji Food achieving four limit-ups in seven days and Hexing Packaging recording three consecutive limit-ups [1] - The semiconductor sector was active, with Shenghui Integrated Circuit achieving three consecutive limit-ups [1] - In contrast, the precious metals sector experienced a decline, with Shanjin International and Western Gold both falling [1] - The dairy industry saw a correction, with Zhuangyuan Pasture hitting the daily limit down [1] Limit-Up Performance - The limit-up rate was recorded at 74.00%, with 54 stocks hitting the limit and 19 stocks touching the limit [3] - The performance of stocks that hit the limit yesterday showed a gain of 3.06% today, with a high opening rate of 54% [3]