SK Hynix Raises $26.5 Billion in Wall Street Debut

What happened

SK Hynix began trading on Nasdaq on July 10, raising $26.5 billion through the sale of American depositary shares priced at $149 each. Each ADS represents one-tenth of a common share listed in Seoul. The offering was oversubscribed more than seven times, allowing the company to price at a 2.9% premium to its Seoul-traded stock rather than the typical discount. Shares opened at $170 and closed the day up 14.8%. The listing makes SK Hynix the largest foreign company IPO in US history and the second-largest IPO overall, trailing only SpaceX's recent $85.7 billion offering. SK Hynix's market value had already surpassed $1 trillion in Seoul in May, making it the first dedicated memory specialist to reach that milestone.

Why it matters

The capital raise positions SK Hynix to accelerate expansion of manufacturing capacity for high-bandwidth memory (HBM), the critical component powering AI chipsets from NVIDIA and other data centre providers. CEO Kwak Noh-jung told Reuters that the memory industry is heading for its worst-ever supply shortage in 2027, with customer demand expected to exceed supply capacity beyond 2030 despite aggressive expansion. The US listing provides easier access to deep pools of capital with fewer constraints than South Korea's domestic market, supporting SK Hynix's plans to invest in new plants and advanced memory technologies. The company recently announced a multiyear technology partnership with NVIDIA to codevelop next-generation memory for AI infrastructure. South Korea's government has announced more than $880 billion in planned semiconductor investments alongside SK Hynix and Samsung.

Bigger picture

SK Hynix's successful debut reflects surging investor conviction in AI infrastructure and the memory supply chain. The company's Seoul-listed shares have risen 680% over the past year, while rivals Samsung and Micron have more than doubled. Industry analysts forecast the high-bandwidth memory market will grow from approximately $65 billion this year to $120 billion in 2025 and $290 billion by 2030. The big three memory makers-SK Hynix, Samsung, and Micron-are using market power to lock in multiyear pricing and orders, capitalising on structural supply constraints. SK Hynix and Samsung now both hold $1 trillion-plus valuations, joining NVIDIA, Apple, Microsoft, and Alphabet in the elite tier of global technology companies. The listing comes amid a broader wave of AI-linked companies accessing public markets, including SpaceX, Anthropic, and OpenAI preparing offerings at valuations above $1 trillion.

What to watch

Investors should monitor SK Hynix's ability to scale production capacity in line with demand forecasts, particularly as the company warns of worsening supply shortages through 2027. Key signals include progress on new fabrication plants in South Korea, execution of the NVIDIA partnership, and whether the company can maintain pricing power amid aggressive capacity expansion by Samsung. The shift to US capital markets may also influence investor flows between Seoul-listed shares and Nasdaq-traded ADRs. Broader trends to watch include whether memory pricing remains elevated, how quickly hyperscalers deploy AI infrastructure, and whether geopolitical factors affect semiconductor supply chains.