突然，又爆了！直线拉升

Market Overview - A-shares opened higher with all three major indices rising, with the Shanghai Composite Index surpassing the 4000-point mark, and the Sci-Tech 50 Index increasing by over 3% [1] - As of the midday close, the Shanghai Composite Index rose by 0.88%, the Shenzhen Component Index increased by 1.39%, and the ChiNext Index also gained 1.39% [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.32 trillion yuan, an increase of 188 billion yuan compared to the previous trading day [1] Semiconductor Sector - The semiconductor sector experienced a collective surge, with the optical module (CPO) leading the market [3] - Notable individual stock performances included Changguang Huaxin hitting a 20% limit up, and several other stocks like Demingli and Jinhaitong reaching 10% limit up [3][4] - Key stocks such as SMIC rose nearly 4%, while Haiguang Information increased by over 7% [3] Phosphate Chemical Sector - The phosphate chemical sector saw a significant rally, with stocks like Qingshuiyuan, Batian, and Chengxing all hitting the daily limit [7] - Qingshuiyuan's stock price rose by 20.04%, while Batian and Chengxing also posted substantial gains [8] Non-ferrous Metals Sector - The non-ferrous metals sector showed strong performance, with multiple stocks hitting the daily limit, including Shenzhen Xinxing and Minfa Aluminum [9] - China Aluminum's stock price increased by 10.03%, reflecting a robust market sentiment in this sector [10] Weakening Sectors - The ice and snow tourism sector experienced a significant pullback, with stocks like Dalian Shengya hitting the daily limit down [11] - The Hainan Free Trade Zone sector also saw a sharp decline, with Haikong Group experiencing a near limit down [12]