SK Hynix stock ends the day slightly higher at the close on Nasdaq

SK Hynix stock, represented by its U.S.-listed ADRs, closed on the Nasdaq at around USD 188 on September 21, 2026, gaining roughly 3 percent from the prior close. Compared with the broader market, this left the ADRs ahead of major U.S. indices, which posted more moderate moves on the day.

September 21, 2026 in numbers

SK Hynix Inc. (ISIN KR7000660001) ADRs traded on the Nasdaq under the symbol SKHY and were referenced at about USD 188.58 in a daily U.S. stock overview dated September 21, 2026, which cited a 3.05 percent gain, high volume above 71 million shares and a market value above USD 1.3 trillion, indicating a strong session for the ADRs.Naver Premium attributed the advance in part to continued interest in semiconductor and artificial intelligence themes in U.S. trading.

On the home market, SK Hynix shares in Seoul rose 0.59 percent to 1,868,000 won as the KOSPI index reclaimed the 7,000 level, helped by record chip exports and a near 5 percent jump in Samsung Electronics.Seoul Economic Daily reported that the KOSPI closed 1.65 percent higher at 7,007.72 points, with SK Hynix contributing modestly to the rally; the difference between the 0.59 percent home-market gain and the roughly 3 percent move in the ADRs reflects the exchange rate and U.S. investor positioning.

After the bell today and next session

After the close on September 21, 2026, SK Hynix ADRs continued to trade in the U.S. after-hours session, with investors monitoring semiconductor peers and U.S. index futures for further signals ahead of the next regular session on September 22, 2026. According to the KOSPI coverage on record chip exports,TradingKey market focus remains on semiconductor demand and export data, which can influence SK Hynix’s shares in both Seoul and on Nasdaq. On September 22, 2026, traders will watch for fresh macroeconomic data and any sector-specific news that could affect sentiment toward memory-chip producers in the U.S. market.