日月光（2311）：CY25Q4业绩点评及法说会纪要：ATM先进封装接近满载，EMS转型光电CPO，共筑AI全栈护城河

Investment Rating - The report does not explicitly state an investment rating for the company Core Insights - The company reported a consolidated revenue of NT$177.91 billion for Q4 2025, representing a year-over-year increase of 9.6% and a quarter-over-quarter increase of 5.5% [1][2] - The gross margin for Q4 2025 was 19.5%, up 3.1 percentage points year-over-year and 2.4 percentage points quarter-over-quarter, driven by high capacity utilization in the ATM factories, product mix optimization, and favorable currency effects [2][9] - The company achieved a net profit attributable to shareholders of NT$14.71 billion in Q4 2025, reflecting a 58% increase year-over-year [10] Financial Performance Overview Q4 2025 Performance - Revenue reached NT$1779.15 billion, with a gross margin of 19.5% [1][2] - Net profit attributable to shareholders was NT$14.71 billion, with a basic earnings per share of NT$3.37 [10][11] Full Year 2025 Performance - Total revenue for 2025 was NT$6453.88 billion, a year-over-year increase of 8.4% [3][11] - The gross margin for the year was 17.7%, with a net profit of NT$40.66 billion, up 25% year-over-year [3][11] Business Segment Revenue Summary Semiconductor Packaging Division (ATM) - Q4 2025 revenue was NT$1097.07 billion, a year-over-year increase of 24.2% [13][18] - The gross margin for this segment was 26.3%, benefiting from strong demand for advanced packaging and testing solutions [13][14] Electronic Manufacturing Services (EMS) - Q4 2025 revenue was NT$689.91 billion, down 7.9% year-over-year [20][24] - The gross margin was 9.0%, with a focus on transitioning towards AI and related applications [20][24] Performance Guidance Q1 2026 Guidance - The company expects a mild revenue decline of 5%-7% quarter-over-quarter due to seasonal factors [4][25] - The gross margin is anticipated to decrease by 0.5-1 percentage points [4][25] Full Year 2026 Guidance - The company forecasts continued revenue growth, with ATM revenue expected to outperform the logic semiconductor market [4][26] Market Outlook and Strategic Layout - The industry is in a long-term upward cycle driven by AI, with growth extending to edge devices [5][30] - Capital expenditures for 2026 are projected to approach US$4.9 billion, with significant investments in advanced capacity [5][30] - The company is expanding its operations in Penang, Malaysia, to meet global manufacturing demands [5][31]