AI Packaging Surge: Taiwanese Semiconductor Stocks Gain 6 Trillion Won in Market Cap in One Day

ASE Technology Holding Co., Ltd. (ADR) (NASDAQ: ASX) closed at $35.93 on June 8—up 5.57%—adding approximately $4.6 billion (roughly KRW 6.5 trillion) to its market capitalization, which now stands at about $79 billion (around KRW 110 trillion).

Trading volume surged to about 3.44 million shares, noticeably above the norm, reflecting investor inflows driven by expectations for AI and advanced packaging.

In its Q1 2026 results, ASE reported revenue of NT$173.6 billion, a 17% year-over-year increase, and maintained healthy profitability, confirming a sharp rise in high-value AI packaging demand. At the same time, growth expectations have been bolstered by news of ASE’s AI-focused advanced packaging capacity expansion—partly absorbing TSMC’s CoWoS volumes—and corresponding price increases, as well as AMD’s decision to deepen its collaboration with ASE on advanced packaging and interconnect solutions for next-generation AI infrastructure.

Based in Kaohsiung, Taiwan, ASE Technology Holding is one of the world’s largest outsourced semiconductor assembly and test (OSAT) providers, serving as a critical supply-chain partner for global fabless and foundry leaders such as TSMC, AMD, and NVIDIA in AI and high-performance computing chip production. As AI proliferation creates bottlenecks not only at the leading-edge process level but also in advanced packaging, ASE has been spotlighted as an AI infrastructure beneficiary, aggressively investing in fan-out, 2.5D, and panel-level packaging technologies.