Hidden Factory Sees Market Cap Surge of $9 Billion in a Day Amid AI Packaging Hype

ASE Technology Holding Co., Ltd. (ASX) saw its U.S. depositary receipts surge 8.69% to close at $32.40 on the New York Stock Exchange. Its market capitalization jumped by approximately $6.7 billion in a single day—nearly KRW 9 trillion—while trading volume reached around 4.8 million shares.

The company recently set a growth target to double its advanced packaging revenue to $3.2 billion by 2026, driven by rising demand for AI-focused advanced packaging solutions. Amid a global shortage in the outsourced semiconductor assembly and test (OSAT) market, analysts have also flagged the potential for packaging and testing price increases starting in late 2026.

Headquartered in Kaohsiung, Taiwan, ASE Technology Holding is the world’s largest outsourced semiconductor assembly and test provider, often dubbed the “invisible semiconductor factory.” It currently holds the leading share in the global OSAT market and specializes in back-end processing for AI and high-performance computing chips.