刚刚，A股刷屏！

Core Viewpoint - The A-share market is experiencing significant movements, with the Shanghai Composite Index surpassing 4000 points for the first time since August 2015, driven by various sectors such as controllable nuclear fusion, domestic software, PCB, and commercial aerospace [3][5]. Group 1: Market Performance - On October 28, the Shanghai Composite Index reached 4005.44 points, up 0.21%, while the Shenzhen Component Index rose by 0.52% and the ChiNext Index increased by 1.35% [5]. - The onshore RMB appreciated against the USD, breaking the 7.10 mark, which analysts believe may enhance foreign investment in RMB assets [5]. Group 2: Policy Developments - The China Securities Regulatory Commission (CSRC) announced a series of measures to optimize the Qualified Foreign Institutional Investor (QFII) system, aiming to improve its adaptability and attractiveness for foreign investors [5]. - CSRC Chairman Wu Qing indicated plans to introduce a refinancing framework to support mergers and acquisitions, promoting industry consolidation among listed companies [5]. Group 3: Sector Highlights - The controllable nuclear fusion sector saw significant gains, with stocks like Dongfang Tantalum and Antai Technology hitting the daily limit, driven by positive news regarding the domestic industrialization of key materials [3][9]. - PCB stocks collectively surged, with companies like Aisen Co. and Meilian New Materials rising over 11%, and Shengyi Technology reporting a projected revenue increase of 108% to 121% year-on-year for the first three quarters of 2025 [6]. - Domestic software stocks were active, with companies like Rongji Software and Geer Software hitting the daily limit, supported by favorable policy developments for domestic technology [7]. Group 4: Commercial Aerospace Developments - The commercial aerospace sector rebounded, with stocks like Aerospace Development hitting the daily limit, following successful tests of the Tianlong-3 rocket, marking a breakthrough in multi-satellite deployment capabilities [7][9]. Group 5: Controllable Nuclear Fusion Insights - Controllable nuclear fusion is recognized as a key future energy direction, with significant advancements in the development of second-generation high-temperature superconducting materials, crucial for creating strong magnetic fields [10][11]. - The recent breakthroughs in the industrialization of high-purity Hastelloy C276 metal substrates for superconducting materials are expected to reduce reliance on imports and enhance domestic production capabilities [10][11].