2026-02-12 - Company Earnings: Q4 2025 ASE Technology Holding

ASE posts 4Q25 growth with ATM up strongly, EMS steady, and 2025 revenue rising 12% as advanced packaging and testing drive momentum.

ASE Technology reported revenue growth of 1.6% QoQ in 4Q25, and 14.2% YoY. For the year, revenue grew 12% in 2025, with ATM up 23% led by the leading-edge advanced packaging services and testing business (LEAP). Package and test utilization rates was around 80%, with the EMS business slowing slightly due to underlying product seasonality. ATM (Assembly, Testing, and Material) revenues made up 61% of the total, followed by EMS at 39%. ATM revenues increased 9% QoQ and rose 24% YoY. EMS (Electronics Manufacturing Services) revenues were flat QoQ and declined 8% YoY. This infographic includes key takeaways from ASE's Q4 2025 earnings call.