First-day performance: ADRs opened at $170 — a roughly 14% opening pop — and closed the session at $168.01, for a first-day gain of about 13% . (The opening was ~14% above the offer price rather than exactly 17%, but the IPO was widely described as commanding a significant premium.)
Rank: Largest-ever U.S. share sale by a foreign company, surpassing Alibaba's $25 billion IPO in 2014 . It was also the second-largest stock sale globally in 2026, behind only SpaceX
.
Structure: 177.9 million ADRs sold, each representing one-tenth of a share of SK Hynix common stock (equivalent to 17.79 million underlying shares) .
Use of proceeds: All proceeds are being used to expand semiconductor production capacity — buying chip equipment and building new factories — as the company rides surging AI-driven demand .
SK Hynix is Nvidia's largest memory chip supplier and the dominant force in high-bandwidth memory (HBM), which is critical for AI accelerators.
On July 14, 2026 — just days after SK Hynix's debut — Bloomberg reported that Samsung Electronics is in the early stages of exploring a potential U.S. ADR offering, having held preliminary discussions with banks . However, Samsung subsequently denied the report, with an official telling Korean media on July 15 that the company is "not considering" an ADR listing
. The situation remains fluid: Samsung had previously considered and rejected a U.S. listing, and activist investor Artisan Partners has publicly pushed for ADRs to close the company's valuation gap with rivals
.