Proven in practice, SK Hynix ADRs in the US stock market are indeed quite disappointing. During the day, SK Hynix in the Korean stock market dropped 15.3%, but the US ADRs have only fallen 7% so far, with the current US stock premium still around 25%. The Korean stock market experienced concentrated deleveraging from margin trading and leveraged funds, while US investors are still willing to offer a significant premium. There's now a substantial pricing difference between the two markets.