SK Hynix Bets Big on HBM4 to Power the Next AI Wave

SK Hynix places a record $9B EUV order with ASML and plans a $10B US listing to fund its HBM4 development, aiming to double AI chip bandwidth and power efficiency.

The race to build the foundational hardware for advanced artificial intelligence is intensifying. South Korean memory chip leader SK Hynix is making a multi-billion dollar wager to secure its position, aggressively preparing infrastructure for the next-generation High-Bandwidth Memory (HBM) standard, HBM4, even as the current HBM3E generation holds market sway. A series of colossal equipment orders reveals the scale of its ambition to maintain a technological edge.

Securing a Technological Lead with Record Orders

The company’s strategy involves securing critical, specialized manufacturing equipment well ahead of time. In a move underscoring this preparation, subsidiary Digital Frontier recently placed an order for advanced wafer testing systems valued at approximately $68 million. These systems are essential for validating the electrical performance of the intricately stacked memory dies that define HBM technology.

This investment was swiftly followed by a landmark procurement from Dutch firm ASML. SK Hynix committed nearly 12 trillion won to acquire extreme ultraviolet (EUV) lithography systems, marking the largest single customer order ever publicly disclosed by the equipment manufacturer. These machines are vital for producing the ultra-fine circuitry required in cutting-edge chips.

Funding an Ambitious Roadmap

The technological leap to HBM4 is significant, with the new standard projected to deliver more than double the bandwidth of its predecessor alongside a 40% improvement in power efficiency. This performance is targeted at alleviating computational bottlenecks in training and running large language models.

To finance this R&D push and support new fabrication plants in South Korea and the United States, SK Hynix has taken steps to access deeper capital markets. The company has confidentially filed paperwork for a US listing, with plans to raise up to $10 billion through American Depositary Receipts (ADRs) by the end of 2026.

Robust Fundamentals Underpin Expansion

Market analysts project a dramatic financial upswing that validates this expansive capital allocation. For the 2026 fiscal year, revenue is forecast to surge to nearly 247 trillion won, representing an increase of over 150% from 2025 estimates. Operating profit is also expected to multiply, reaching a projected 177.6 trillion won.

This optimistic outlook has been reflected in the company's share price, which has advanced close to 29% over the past year. In a recent session, however, shares experienced a pullback, declining 5.31% to 873,000 South Korean Won. Based on the anticipated earnings growth, experts now estimate the price-to-earnings (P/E) ratio for 2026 at a moderate 5.4 to 5.8, a valuation that tempers the premium multiples seen in recent months.