SK Hynix Stock: US Investors Paying 51% More Than Seoul Despite a 10% Pop

US investors are paying 51% more than Seoul investors for SK Hynix stock, even after Seoul shares jumped nearly 13% Wednesday, July 15. The premium held as the Korean stock settled at around 10% up on yesterdays close The gap reflects strong demand for the chipmakers US-listed shares. Options trading and optimism over tightening AI memory supply are driving it. Why US Investors Are Paying More Options trading opened once the ADRs listed and derivative traders bets pushed the price well past the Seoul-listed common stock, according to Bloomberg. The shares closed Tuesday at $193.92, up 27.29%, then slipped 2.2% in after-hours trading. The NASDAQ twin of the SK Hynix shares have seen steady upward growth since listing. Limits on converting common shares into the new US instrument restrict arbitrage between the two listings. That structural gap keeps the premium from closing quickly. Barclays initiated coverage with an overweight rating and a $330 price target. Kim Sunwoo, senior analyst at Meritz Securities, said DRAM suppliers are meeting only 75% to 80% of demand. He expects the shortfall to deepen through 2027. With supply shortages set to deepen, memory prices and earnings are likely to continue improving, supporting a strong rebound in the share price. Kim Sunwoo, Reuters SK Hynix CEO Kwak Noh-jung has forecast the global memory industrys worst-ever supply shortage in 2027. He expects demand to outstrip the companys production capacity well beyond 2030. Seoul Catches Up The Nasdaq surge followed a volatile week for the Seoul-listed stock. The shares shed 10% Monday during a broader Asian selloff tied to Middle East tensions. Wednesdays rebound extended Tuesdays gains and tracked a wider rally across Korean semiconductor stocks, with Samsung Electronics up nearly 8%. SK Hynix is up 10% in early morning trading. The dual listing has drawn attention beyond SK Hynix. Nasdaq President Nelson Griggs said the offerings success is prompting other international firms to weigh similar US listings. A 51% gap between two share classes of the same company rarely holds. Traders will likely move to close it in the coming sessions, which could bring sharp swings in either direction.