航发科技7天4板！龙头股午后直线涨停

Core Viewpoint - The A-share market showed a rebound in the afternoon, with significant gains in sectors such as semiconductors, precious metals, and computing hardware, leading to a slight increase in major indices [1][12]. Market Performance - The Shanghai Composite Index rose by 0.18% to close at 4139.98, the Shenzhen Component Index increased by 0.09% to 3342.60, and the ChiNext Index gained 0.71% to 14329.91 [2][12]. - Notable sector performances included precious metals, semiconductors, cultivated diamonds, and automotive chips, while sectors like aquaculture, animal vaccines, and coal mining experienced adjustments [14]. Individual Stock Highlights - Silver Holdings achieved a "6 consecutive boards" performance, while Aviation Power Technology hit a "7 days 4 boards" limit up, closing at 53.12 yuan per share with a market value of 17.536 billion yuan [3][15]. - Semiconductor stocks saw significant increases, with Dongxin Co. hitting a "20CM" limit up, and Huahong Semiconductor reaching a historical high with an intraday increase of over 9% [8][20]. Aerospace Sector Strength - The large aircraft concept gained strength in the afternoon, with Aviation Power Control and Aviation Power Technology both hitting the limit up [3][15]. - The commercial aerospace engine market in China is projected to exceed 2.6 trillion yuan over the next 20 years, with an estimated annual aftermarket value of around 100 billion yuan [6][18]. Semiconductor Sector Developments - The storage chip and co-packaged optics sectors showed active performance, with Dongxin Co. and other companies like Kangqiang Electronics and Huatiansheng Technology hitting limit ups [8][20]. - Micron Technology announced a plan to invest an additional $24 billion in Singapore over the next decade to expand capacity in response to the AI-driven demand for storage chips [10][22]. - The semiconductor industry is expected to experience significant market value growth, driven by AI demand and supply-side contractions, with a bullish outlook on domestic storage chain investment opportunities [10][22].