SKHX Gains 8% Into SK Hynix's $28B Nasdaq Debut as Book Closes 7x Oversubscribed

The Book That Closed Early

SK Hynix pulled its roughly $28 billion Nasdaq ADR order book forward after demand ran more than seven times oversubscribed, with the subscription window closing Wednesday afternoon in New York. The company is issuing 17.79 million new common shares — 177.9 million ADRs at a 10-to-1 ratio — under the ticker SKHY, with pricing due Thursday and the Nasdaq debut Friday. At that size it would be the second-largest share sale on record, behind only SpaceX's roughly $85.7 billion IPO last month. Around 1,000 institutional accounts joined the marketing call, and names including Baillie Gifford, Coatue and Situational Awareness Partners flagged interest in up to a combined ~$7 billion of the ADRs. Proceeds are earmarked for Korean fabs and ASML extreme-ultraviolet lithography equipment.

The Perp Is Still Below the Deal

SKHX tracks one SK Hynix common share, converting the Seoul KRW price to USD through the oracle. At $1,446 the perp implies about $145 per ADR-equivalent — still under the 242,500-won reference price set off the July 3 Seoul close (~$158 at prevailing FX). That is roughly an 8% discount to the deal the day before the ADRs trade, the kind of gap that closes quickly if the debut prints at or above the book. The underlying is not sitting still either: Seoul shares climbed about 7.23% on the oversubscription signal, and SKHX has tracked that bid, moving from about $1,416 to $1,446 over the session on $908.7M of 24h perp volume. With SKHY not yet live, the perp is the only leveraged way to express a view on the largest US listing of the year in real time.

Into Pricing and the Debut

The near-term path runs through Thursday's final price and Friday's open. A print at or above the 242,500-won reference would validate the oversubscribed book and likely pull the perp toward the deal; a soft debut or post-listing profit-taking cuts the other way, with new-share dilution landing all at once. Because SKHX is a USD conversion of a KRW-denominated share, USD/KRW moves add basis on top of the equity print — the perp can diverge from the headline stock number around the event. This is momentum into a scheduled catalyst, not a fundamentals re-rating: the memory cycle and AI-driven HBM demand are the backdrop, but the next 48 hours are an event trade.