10月27日主题复盘 | 指数逼近4000点关口，福建自贸、光刻胶大涨，核聚变再度表现

Market Overview - The market showed strong fluctuations throughout the day, with the Shanghai Composite Index approaching the 4000-point mark, continuing to refresh its yearly high, while the ChiNext Index rose nearly 2% [1] - The storage chip sector experienced a collective surge, with stocks like Zhaoyi Innovation and Demingli hitting the daily limit and reaching new highs [1] - The controllable nuclear fusion concept remained active, with stocks like Dongfang Tantalum and Antai Technology hitting the daily limit [1] - The trading volume reached 2.36 trillion yuan, with over 3200 stocks in the Shanghai and Shenzhen markets showing gains [1] Hot Topics 1. Fujian Free Trade Zone - The Fujian Free Trade Zone concept continued to perform well, with stocks like Pingtan Development and Xiamen Tungsten hitting the daily limit [4][5] 2. Photoresist - The photoresist sector was active, with Wanrun Co. and Antai Technology hitting the daily limit, and Jingrui Electric Materials rising over 15% [6] - A recent breakthrough in photoresist technology was reported, which could significantly reduce defects in semiconductor manufacturing [6] - The Chinese semiconductor photoresist market size grew from 2.78 billion yuan in 2019 to 6.42 billion yuan in 2023, with a compound annual growth rate of 23.3% [8] 3. Nuclear Fusion - The nuclear fusion sector saw renewed strength, with stocks like Dongfang Tantalum and Wan Energy hitting the daily limit [9] - China is expected to complete its "artificial sun" project by 2027, which could be the first device to achieve fusion power generation [9] - The investment in controllable nuclear fusion projects is expected to enter a capital expenditure phase during the 14th Five-Year Plan period [10] Other Notable Performances - Other sectors such as optical modules, storage, PCB boards, and robotics performed well, while the pharmaceutical and energy storage sectors faced declines [11]