沪指十字星收盘，成交额连续两日超2.8万亿

Market Overview - The Shanghai Composite Index closed at 4085.77 points, up 0.05%, marking a 14-day winning streak [1] - The Shenzhen Component Index rose 0.06% to 14030.56 points, while the ChiNext Index increased by 0.31% to 3329.69 points [1] Trading Volume - 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 two consecutive days surpassing the 2.8 trillion yuan mark [3] Sector Performance - The market exhibited mixed performance across sectors, with electronic chemicals, coal, semiconductors, power equipment, small metals, bioproducts, and grid equipment showing strong gains [3] - Conversely, sectors such as shipbuilding, education, securities, aerospace, and jewelry experienced declines [3] Notable Stocks - The commercial aerospace sector maintained high activity, with over ten stocks hitting the daily limit, including LeiKe Defense achieving six consecutive limit-ups and Goldwind Technology reaching two consecutive limit-ups [3] - The coal sector saw significant gains, with DaYou Energy and Shanxi Black Cat hitting the daily limit [3] Semiconductor Sector - Semiconductor equipment stocks continued their strong performance, with Zhongwei Company and Northern Huachuang both surging and reaching new historical highs [4] Specialty Materials - The photoresist concept stocks were active, with Guofeng New Materials recording two limit-ups in three days, and Nanda Optoelectronics and Tongcheng New Materials also hitting the daily limit [5] Nuclear Fusion Concept - The controllable nuclear fusion concept saw a strong afternoon rally, with China First Heavy Industries and China Nuclear Engineering both hitting the daily limit [6] Declining Stocks - The brain-computer interface concept faced adjustments, with Chengyitong and Aipeng Medical both experiencing declines exceeding 10% [7]