Investment Rating - The report maintains a "Buy" rating for Longxin Co., Ltd. (688486.SH) [5] Core Insights - Longxin Co., Ltd. is actively developing high-speed data transmission products for AI applications, with PCIe expected to become a new growth point. The company leverages its technology in mixed-signal fields to create chips for AI training, inference, and data storage [1][5] - The automotive electronics segment is expanding, with successful market promotion of the vehicle SerDes chipsets and continuous development of smart cockpit and vehicle-side applications [2] - The traditional bridging business shows steady growth, with the company maintaining its leading position in the domestic market and ranking sixth globally in sales and market share of high-definition video bridging chips [3] Financial Performance Summary - For the first three quarters of 2025, Longxin Co., Ltd. achieved revenue of 389 million yuan, a year-on-year increase of 16.67%, and a net profit attributable to shareholders of 125 million yuan, up 32.47% year-on-year [3] - Revenue projections for 2025-2027 are estimated at 705 million, 1.119 billion, and 1.450 billion yuan, respectively, with net profits expected to be 206 million, 342 million, and 428 million yuan [3][4] - The company’s earnings per share (EPS) are projected to grow from 0.77 yuan in 2023 to 3.21 yuan in 2027, reflecting strong growth potential [4] Product Development and Market Position - The company has successfully developed a 12.5Gbps SerDes technology for high-end automotive markets, addressing the demand for long-distance video transmission and ultra-high-definition display [2] - Longxin Co., Ltd. is expanding its product line in high-definition video bridging and processing chips, with new products expected to be shipped in the second half of 2025 [3]

Investment Rating - The investment rating for the company is "Buy" [5] Core Views - The company has shown continuous improvement in supply chain stability and robust growth in automotive electronics business. In H1 2025, the company achieved revenue of 247 million yuan, a year-on-year increase of 11.35%, and a net profit of 72 million yuan, up 15.16% year-on-year [1][5] - The automotive electronics segment, particularly the SerDes products, is progressing well, with expectations for the market size in mainland China to reach 1.088 billion USD by 2025. The company is expanding its product applications into various fields, including eBikes and drones [2][3] Summary by Sections Financial Performance - In Q2 2025, the company reported revenue of 138 million yuan, a year-on-year increase of 17.42% and a quarter-on-quarter increase of 26.56%. The net profit for the same period was 43 million yuan, reflecting a year-on-year growth of 38.32% and a quarter-on-quarter growth of 50.87% [1][5] Automotive Electronics - The company’s SerDes products are entering full market promotion, with successful mass production in areas such as electric two-wheeled vehicle dashboards and industrial welding 3D cameras. The company is also expanding into new fields, which is expected to drive future growth [2] - The market share of the company's bridging chips in automotive head-up displays and infotainment systems has significantly increased since 2024, with multiple products passing AEC-Q100 testing certification [2] Traditional Bridging - The company has expanded its production capacity and added new wafer and packaging plants to enhance supply chain stability. New products, including low-power, low-latency video bridging chips for AI applications, are expected to be launched in H2 2025 [3] - The company is actively researching various protocols, with some projects already in the tape-out stage, which will further expand its product line and growth potential [3] Financial Projections - Revenue projections for the company are 705 million yuan in 2025, 1.119 billion yuan in 2026, and 1.450 billion yuan in 2027, with corresponding net profits of 206 million yuan, 342 million yuan, and 428 million yuan respectively [4][10]

1. Report Industry Investment Rating - No relevant information provided. 2. Core View of the Report - The high-speed mixed-signal chip industry has broad growth prospects. The demand for high-definition video chips in emerging application scenarios such as 4K/8K ultra-high-definition video, AR/VR, and the metaverse is growing explosively. Global AI and HPC demand is also driving the growth of high-speed signal chips. The company will focus on high-definition video processing and high-speed signal transmission technologies, increase R & D investment in automotive, HPC, and micro-display chips, and expand market share [26]. 3. Summary According to Relevant Catalogs 3.1 Research Basic Situation - The research object is Longxun Co., Ltd. The reception time is May 20, 2025. The listed company's reception personnel include the chairman, general manager FENG CHEN, independent directors Xie Guangjun and Chen Lai, board secretary Zhao Yu, and financial director Wei Yongxiang [16]. 3.2 Detailed Research Institutions - The reception object is all investors participating in the online performance briefing of Longxun Co., Ltd. for the first quarter of 2025 [19]. 3.3 Research Institution Proportion - No relevant information provided. 3.4 Main Content Data - **Reasons for slow revenue growth in Q1 2025**: Affected by holidays, traditional industry off - seasons, and insufficient production capacity of some models, some business orders were not released. The company is optimizing the supply chain system [23]. - **Automotive chip business**: The company has 8 chips certified by AEC - Q100. In 2024, the business of bridge chips in automotive HUD and infotainment systems increased. The in - vehicle SerDes chipset is in full - scale market promotion, with some fields in mass production and others in prototype verification [24]. - **Profitability in Q1 2025**: The total operating revenue was 109 million yuan, a year - on - year increase of 4.52%. The gross profit margin was 54.43%. The net profit attributable to the parent company was 2.85092 million yuan, a year - on - year decrease of 8.06%. The non - recurring profit and loss net profit was 2.11283 million yuan, a year - on - year decrease of 8.93%. The net cash flow from operating activities was 1.80137 million yuan, compared with - 3.55247 million yuan in the same period last year. R & D investment was 2.75914 million yuan, accounting for 25.31% of operating revenue, a year - on - year increase of 23.24% [24]. - **Profit growth points**: In 2025, the company will focus on core technologies, optimize R & D platforms, increase R & D investment in automotive, HPC, and micro - display chips, and expand market share in new products. It will also promote new products in automotive electronics and ultra - high - definition display [25]. - **Industry performance in Q1 2025**: The semiconductor industry has seasonality, and Q1 is usually a relative off - season. The national subsidy policy has promoted the growth of the consumer electronics business [25]. - **Industry development prospects**: The high - speed mixed - signal chip industry has broad growth prospects, driven by emerging application scenarios and AI/HPC demand [26].

Core Viewpoint - The company reported a slight increase in revenue for Q1 2025, but a decrease in net profit, primarily due to rising expenses. The company is also investing in a new R&D base to enhance its operational environment [1][2]. Revenue and Profit Summary - In Q1 2025, the company achieved revenue of 1.09 billion, a year-on-year increase of 4.52%. However, the net profit attributable to shareholders was 0.29 billion, reflecting a year-on-year decrease of 8.06%. The non-recurring net profit was 0.21 billion, down 8.93% year-on-year. The gross profit margin was 54.43%, up 0.32 percentage points year-on-year [1][2]. Expense Analysis - The company has been increasing its R&D investment, with R&D expenses in Q1 2025 amounting to 0.28 billion, a year-on-year increase of 23.24%, resulting in an R&D expense ratio of 25.31%. Additionally, sales, management, and financial expenses for the quarter were 11.28%, up 2.19 percentage points year-on-year [2]. Market Opportunities - The company is poised to benefit from the growing demand for automotive SerDes chips, with the market in mainland China expected to reach 1.088 billion by 2025. The average value per vehicle for SerDes is projected to be 44.35. Currently, the market is dominated by foreign manufacturers, with limited domestic competition [3]. - The company’s automotive bridge chip business is also expanding, with significant market share growth in head-up displays and in-car entertainment systems. By the end of Q3 2024, revenue from automotive electronics accounted for approximately 20% of total revenue [3]. Future Projections - Revenue projections for the company from 2025 to 2027 are estimated at 7.05 billion, 11.19 billion, and 14.50 billion, respectively. Net profit attributable to shareholders is projected to be 2.09 billion, 3.48 billion, and 4.34 billion for the same period. The company is well-positioned in the domestic market for video bridge chips and is actively expanding in the automotive sector [4].