A股收评：沪指14连阳，两市成交额连续两日超2.8万亿

Market Overview - The Shanghai Composite Index recorded a slight increase of 0.05%, marking a 14-day consecutive rise, while the ChiNext Index experienced a pullback after reaching a high, closing up by 0.31% [1] - The total trading volume in the Shanghai and Shenzhen markets reached 2.85 trillion yuan, an increase of 476 billion yuan compared to the previous trading day, with trading volume exceeding 2.8 trillion yuan for two consecutive days [4] Sector Performance - The commercial aerospace sector showed strong activity, with over ten constituent stocks hitting the daily limit, including LeiKe Defense with six consecutive limit-ups and Goldwind Technology with two consecutive limit-ups [2] - The coal sector continued to rise, with Daewoo Energy and Shaanxi Black Cat both hitting the daily limit [2] - Semiconductor equipment stocks maintained strong performance, with Zhongwei Company and Northern Huachuang achieving significant gains and reaching historical highs [2] - The photoresist concept performed actively, with Guofeng New Materials achieving two limit-ups in three days, and Nanda Optoelectronics and Tongcheng New Materials both hitting the daily limit [2] - The controllable nuclear fusion concept showed a strong rebound, with China First Heavy Industries and China Nuclear Construction both hitting the daily limit [2] Declining Stocks - The brain-computer interface concept experienced a downturn, with Chengyitong and Aipeng Medical both declining over 10% [3] Notable Stocks - Sanhua Intelligent Control had a trading volume exceeding 18.4 billion yuan, ranking first, followed by Aerospace Development and Zhongji Xuchuang with high trading volumes [4]