11月21日，四方股份跌5.04%，截至发稿，报24.89元/股，成交3.43亿元，换手率1.64%，总市值207.39 亿元。四方股份股价已经连续5天下跌，区间累计跌幅9.93%。 从基金十大重仓股角度 数据显示，光大保德信基金旗下1只基金重仓四方股份。光大保德信一带一路混合A（001463）三季度 持有股数8.25万股，占基金净值比例为2.05%，位居第九大重仓股。根据测算，今日浮亏损失约10.89万 元。连续5天下跌期间浮亏损失23.84万元。 光大保德信一带一路混合A（001463）成立日期2015年6月26日，最新规模8109.16万。今年以来收益 16.76%，同类排名4500/8136；近一年收益18.64%，同类排名3847/8056；成立以来收益10.1%。 资料显示，北京四方继保自动化股份有限公司位于北京市海淀区上地信息产业基地四街9号，成立日期 1994年4月8日，上市日期2010年12月31日，公司主营业务涉及继电保护、电网自动化及发电厂自动化产 品的研发、生产、销售和技术服务。主营业务收入构成为：电厂及工业自动化49.82%，电网自动化 42.94%，其他7.09%，房屋租赁、技术服 ...

东财产业智选混合发起式A（018190）基金经理为朱亮。 截至发稿，朱亮累计任职时间2年328天，现任基金资产总规模2517.76万元，任职期间最佳基金回报 16.95%， 任职期间最差基金回报-3.27%。 风险提示：市场有风险，投资需谨慎。本文为AI大模型自动发布，任何在本文出现的信息（包括但不 限于个股、评论、预测、图表、指标、理论、任何形式的表述等）均只作为参考，不构成个人投资建 议。 11月21日，四方股份跌5.04%，截至发稿，报24.89元/股，成交3.43亿元，换手率1.64%，总市值207.39 亿元。四方股份股价已经连续5天下跌，区间累计跌幅9.93%。 资料显示，北京四方继保自动化股份有限公司位于北京市海淀区上地信息产业基地四街9号，成立日期 1994年4月8日，上市日期2010年12月31日，公司主营业务涉及继电保护、电网自动化及发电厂自动化产 品的研发、生产、销售和技术服务。主营业务收入构成为：电厂及工业自动化49.82%，电网自动化 42.94%，其他7.09%，房屋租赁、技术服务、材料销售等0.15%。 从基金十大重仓股角度 数据显示，东财基金旗下1只基金重仓四方股份。东财产业智 ...

Core Insights - The report from Guosen Securities indicates that the domestic wind power installation is expected to maintain a growth rate of 10%-20% in 2026, supported by saturated orders and stable prices [1][2] - The profitability of wind turbine manufacturers is improving quarterly, with export growth boosting performance, reflecting a synchronized recovery in both domestic and international markets [2] - The report emphasizes the importance of overseas expansion and AIDC (Artificial Intelligence Data Center) as key focus areas for 2026, with major domestic power equipment companies making breakthroughs in overseas markets and innovative products [1] Wind Power Sector - The wind turbine sector is experiencing a recovery in profitability, with significant growth in offshore wind installations and tenders, leading to increased orders and performance for related companies [2] - Key companies to watch in the wind power sector include Goldwind Technology, Sany Renewable Energy, Times New Materials, Daikin Heavy Industries, Oriental Cable, and Haile Wind Power [2] Lithium Battery Industry - The lithium battery supply chain is expected to see a reversal in the downward price trend, with significant recovery in profitability anticipated for most products in 2026 [2] - New technologies such as steel-shell batteries, silicon anodes, and large energy storage cells are expected to achieve mass supply in 2026, while solid-state battery technology is accelerating towards industrialization [2] - Recommended companies in the lithium battery sector include CATL, EVE Energy, Zhongchuang Innovation, Zhuhai Guanyu, Tianci Materials, Enjie, Dingsheng Technology, and Xiamen Tungsten [2] Energy Storage Market - The electrification transition is driving explosive growth in the global energy storage market, with domestic market demand leading to a surge in storage orders [3] - The demand for large-scale energy storage in the U.S. is increasing due to power supply shortages, while unstable grid conditions in Europe are also boosting storage needs [3] - Companies to focus on in the energy storage sector include CATL, EVE Energy, Sungrow Power, and Deye [3] Photovoltaic Sector - The photovoltaic supply side is undergoing adjustments, with new technologies such as silver-free materials and perovskite layers gaining attention [3] - The profitability of silicon materials is expected to recover, with silver-free products nearing mass production by 2026 [3] - Key companies in the photovoltaic sector include GCL-Poly Energy, Xinte Energy, Tongwei Co., and Juhua Materials [3] Investment Recommendations - The report suggests focusing on new technology investment opportunities, such as solid-state batteries and flexible converters [3] - Emphasis is placed on overseas expansion and performance improvement for leading companies in lithium batteries and wind turbine components [3] - Long-term beneficiaries in green electricity alternatives include secondary distribution equipment and charging pile operations [3]

Group 1 - The high-voltage index experienced a decline of 2% during intraday trading, with most constituent stocks falling [1] - China XD Electric saw a significant drop of 6.90%, while TBEA and Jinpan Technology fell by 4.78% and 4.01% respectively [1] - Hongfa Technology and Sifang Holding also reported declines of 3.47% and 3.28% respectively [1]

Core Insights - Solid-State Transformers (SST) are leading innovations in power transmission and distribution, utilizing power electronics and high-frequency electromagnetic induction principles [1][2] - China has established a well-defined vertical industry chain for SST, with upstream focusing on wide bandgap semiconductors and soft magnetic materials, midstream on modular manufacturing, and downstream on applications in smart grids and data centers [1][6] - The SST industry is transitioning from technology validation to large-scale commercialization, driven by AI computing power and energy transition, despite facing technical bottlenecks [1][12] Industry Overview - SST, also known as Power Electronic Transformer (PET), replaces traditional transformer components with semiconductor devices to achieve voltage transformation and electrical isolation [2][3] - The main types of SST include AC-SST, DC-SST, and Hybrid-SST, each serving different applications from smart grids to data centers [4][5] Cost Structure - The cost structure of SST is heavily concentrated in upstream components, with power electronic devices accounting for approximately 40% of costs, followed by high-frequency transformers, structural cooling, and control systems each at about 15% [8][10] Market Dynamics - The demand for SST is rapidly diversifying, primarily driven by global energy transition and digital infrastructure development, with AI data centers being the largest application segment [11][12] - The Chinese silicon carbide (SiC) market is projected to grow from approximately 1.6 billion yuan in 2024 to 1.91 billion yuan in 2025, indicating strong growth potential [10] Development Status - The SST industry in China is at a critical stage of transitioning from technology validation to commercialization, with challenges including high costs and lack of standards [12][13] - Major companies like China Xidian and TBEA are leading the market, with significant shares in high-end applications [15] Future Trends - The industry is expected to see breakthroughs in material performance and technology, leading to cost reductions and performance improvements [16] - Application scenarios are anticipated to expand from data centers and smart grids to electric vehicle charging and industrial applications [17] - The competitive landscape will evolve, emphasizing technology, capital, and supply chain capabilities, with a focus on domestic material sourcing [18]

Core Insights - Sifang Co., Ltd. experienced a stock decline of 1.23% on November 17, with a trading volume of 817 million yuan, indicating a negative market sentiment [1] - The company reported a financing net buy of -24.03 million yuan on the same day, suggesting a higher level of selling pressure compared to buying [1] - As of September 30, 2025, Sifang Co., Ltd. achieved a revenue of 6.132 billion yuan, reflecting a year-on-year growth of 20.39%, and a net profit of 704 million yuan, up 15.57% year-on-year [2] Financing and Margin Trading - On November 17, Sifang Co., Ltd. had a financing buy amount of 67.68 million yuan, with a total financing balance of 870 million yuan, accounting for 3.77% of its market capitalization [1] - The financing balance is above the 90th percentile of the past year, indicating a high level of leverage [1] - The company also had a margin trading balance of 1.1928 million yuan, with a short selling volume of 42,000 shares on the same day [1] Shareholder and Dividend Information - As of September 30, 2025, the number of shareholders decreased by 14.71% to 33,800, while the average number of circulating shares per person increased by 17.34% to 24,274 shares [2] - Since its A-share listing, Sifang Co., Ltd. has distributed a total of 4 billion yuan in dividends, with 1.599 billion yuan distributed in the last three years [3] - The top ten circulating shareholders include significant institutional investors, with changes in holdings indicating varying levels of confidence among major stakeholders [3]

Core Viewpoint - Solid State Transformers (SST) are expected to become the ultimate solution for AIDC power management due to their high efficiency and low footprint, with Delta's 800V SST system reaching MW-level capacity and Nvidia planning full deployment of its 800V high-voltage direct current architecture by 2027 [1][2]. Group 1: Industry Trends - Data centers are moving towards higher power levels, with power supply system efficiency becoming crucial as single cabinet power has increased from 8KW to over 30KW, and Nvidia's single cabinet power reaching 120KW [2]. - Traditional DC distribution methods are facing bottlenecks due to space limitations, copper overload, and low conversion efficiency, necessitating a new power supply architecture [2]. - In typical AIDC projects, power-related equipment costs account for nearly 50% of total costs, indicating high value and continuous iteration [2]. Group 2: SST Advantages - SST achieves high efficiency by replacing traditional transformers with high-frequency power electronics, allowing for system efficiencies of up to 98% [3]. - SST's modular design significantly reduces equipment size by approximately 40%, integrating rectification, conversion, and inversion processes [3]. Group 3: Market Opportunities - The 800V HVDC is seen as a starting point for SST penetration, offering active flexibility and green electricity adaptability, which can open broader application markets [4]. - SST can actively control power quality, addressing grid disturbances and load fluctuations, while also supporting bi-directional power flow [4]. - The new grid architecture using SST can accept 50%-70% renewable energy, improving performance by 1.3-2 times compared to traditional grid structures [4]. Group 4: Related Companies - Key players in SST systems include Sifang Co., Ltd. (601126.SH), China XD Electric (601179.SH), Jinpan Technology (688676.SH), and Xinte Electric (301120.SZ) [5]. - Companies involved in SST materials include Keli (002782.SZ) and Yunlu Co., Ltd. (688190.SH), with products covering a wide frequency range [5].

Investment Rating - The investment rating for the company is "Buy" and is maintained [6] Core Views - The company reported a revenue of 6.13 billion yuan for the first three quarters of 2025, representing a year-on-year increase of 20.4%. The net profit attributable to the parent company was 700 million yuan, up 15.6% year-on-year, while the net profit excluding non-recurring items was 680 million yuan, an increase of 14.5% year-on-year [2][4] - In Q3 2025 alone, the company achieved a revenue of 2.11 billion yuan, reflecting a year-on-year growth of 30.6%, although it saw a quarter-on-quarter decline of 3.7%. The net profit for the same quarter was 230 million yuan, up 22.8% year-on-year and down 2.9% quarter-on-quarter [2][4] Summary by Sections Financial Performance - For the first three quarters of 2025, the company's gross profit margin was 30.77%, a decrease of 2.93 percentage points year-on-year. In Q3 2025, the gross profit margin was 31.24%, down 2.97 percentage points year-on-year but up 1.83 percentage points quarter-on-quarter [10] - The total operating expenses for the first three quarters of 2025 accounted for 17.64% of revenue, a decrease of 2.53 percentage points year-on-year. In Q3 2025, the expense ratio was 17.71%, down 4.76% year-on-year [10] Business Development - The company is expanding its non-grid business, which is expected to contribute significantly to revenue growth. The new products and technologies are beginning to penetrate the market more rapidly [10] - The company anticipates that the net profit attributable to the parent company for 2025 could reach 844 million yuan, corresponding to a price-to-earnings ratio of approximately 28 times [10]

Core Viewpoint - The company has obtained multiple software and hardware invention patents in the SST technology direction, including medium-frequency isolation technology, and aims to maintain its technological leadership and strengthen its patent barriers [1] Group 1 - The company has received authorization for several patents related to SST technology [1] - The focus on maintaining a technological edge indicates a strategic commitment to innovation [1] - The emphasis on building a strong patent barrier suggests a proactive approach to competitive positioning in the market [1]

Core Viewpoint - The company has successfully developed a new "medium-frequency isolation single-phase topology" technology in collaboration with Tsinghua University, which reduces both core loss and switching loss, breaking through the efficiency ceiling of traditional high-frequency topologies. This represents a significant leap from "application optimization" to "underlying architecture innovation" in SST technology [1]. Group 1 - The company has obtained multiple software and hardware invention patents in the SST technology field, including the medium-frequency isolation technology [1]. - The company aims to maintain its technological leadership and strengthen its patent barriers to create a robust competitive advantage [1].