SK Hynix Inc.'s American depositary receipts are indicated to open 21% above their offering price, signaling voracious investor appetite for the South Korean memory chipmaker's $26.5 billion share sale. The offering stands as the largest-ever US listing by a foreign company, eclipsing previous records and underscoring Wall Street's hunger for direct exposure to the artificial intelligence hardware supply chain.

The pricing momentum reflects SK Hynix's dominant position in high-bandwidth memory (HBM), a critical component for AI accelerators produced by Nvidia and AMD. With the AI infrastructure buildout still in early innings, the company's technology roadmap and capacity expansion plans have drawn institutional demand that far exceeded the deal size. The offering also marks a watershed moment for Korean corporates accessing US capital markets, potentially opening the door for peers like Samsung Electronics or LG Energy Solution to pursue similar structures.

For investors, the 21% premarket pop suggests the offering may have been conservatively priced, leaving money on the table for the issuer but rewarding early participants. The deal's success also tests whether US-listed ADRs can sustain liquidity and price discovery for a company whose primary listing and operations remain in Seoul, a structure that has historically struggled with valuation discounts.