SK Hynix's American Depositary Receipts (ADRs) have surged to a premium of more than 50% over its common shares listed in South Korea, just days after their Nasdaq debut. On July 14, the ADRs closed at $193.92, representing a 27.29% increase from the previous session. When converted to Korean Won, this equates to approximately 2,887,000 won per common share, which is 51.15% more expensive than the KOSPI closing price of 1,910,000 won for SK Hynix common shares.
This substantial premium is attributed to several factors. A key reason is the severely limited supply of SK Hynix ADRs, which currently constitute only about 2.5% of total shares. Additionally, there's an asymmetric conversion mechanism: while converting ADRs to domestic common shares is possible, converting common shares into ADRs is effectively blocked due to an issuance cap, creating a supply-demand imbalance. This one-way arbitrage channel prevents the premium from normalizing.
The surge in ADR prices is also a result of strong investor demand driven by expectations of an AI investment boom and a rebound in semiconductor stocks, alongside an easing of U.S. inflation concerns which could reduce the likelihood of interest rate hikes. Analysts like Simon Coles from Barclays have initiated coverage with an "overweight" rating and a $330 target price for the ADRs, citing the company's leadership in high-bandwidth memory chips essential for AI data centers. Derivatives transactions based on SK Hynix ADRs have also contributed to the price lift.
The situation draws parallels with TSMC's ADR performance, which historically maintained an average premium of about 16%. While some analysts believe this premium could eventually narrow as global investors, able to access both markets, might opt for the cheaper common shares, others suggest that if SK Hynix increases its ADR supply, similar to how TSMC adjusted its ADR share from 2.9% to 20.5% after issuance, it could lead to a revaluation that benefits both the common shares and the ADRs. The premium, which was only 3% upon pricing, rose to 14.4% on Friday, 24.8% on Monday, and exceeded 50% within three trading days following its Nasdaq listing.
