ASE Technology Holding's stock surged 5.35% during Wednesday's pre-market session following the release of its robust first-quarter financial results and an upgraded revenue forecast for its advanced packaging business.

The company reported unaudited Q1 2026 net revenue of NT$173.66 billion, representing a 17.2% year-over-year increase, while net income attributable to shareholders soared 87.3% to NT$14.148 billion. Diluted earnings per share came in at NT$3.08, significantly higher than the NT$1.64 reported a year earlier and beating analyst expectations.

The strong performance was driven by a 29.7% year-over-year surge in revenue from its core ATM (Assembly, Test, and Materials) segment. Furthermore, the company raised its 2026 revenue outlook for its leading-edge advanced packaging business to over $3.5 billion, citing strong customer demand for AI chips. ASE also announced significant capital expenditure increases and capacity expansion initiatives, including the acquisition of a facility and the groundbreaking of a new testing campus, to support future growth in AI and high-performance computing.