[Edaily Reporter PARK MIN ] Shares of SK hynix(000660)are surging by more than 15% on the Alternative Trading System (NXT) ahead of the market open on the 31st. This is believed to be driven by the sharp rally in semiconductor stocks across the board on the New York Stock Exchange overnight, including a 18.36% surge in Micron Technology.

According to MP Doctor, as of 8:23 a.m., SK hynix is trading at 1,539,000 won on the Alternative Trading System (NXT), up 16.41% from the previous day’s closing price, while SK hynix’s largest shareholder, SKSQUARE(402340), is trading at 930,000 won, up 16.40%.
SamsungElectronics(005930)is trading at 236,000 won, up 14.01%.
The strength in semiconductor stocks is attributed to a significant rebound in U.S. semiconductor stocks such as Micron (18.4%) and SanDisk (26.0%). As Microsoft reported strong earnings that exceeded market expectations, reaffirming the growth potential of its AI and cloud businesses, buying momentum spread across the entire semiconductor sector.
The Philadelphia Semiconductor Index (SOX), which comprises 30 major U.S.-listed semiconductor stocks, surged 8.19% today. This marks its largest single-day gain in about one year and three months, since April 9, 2025 (18.73%).
In addition, SK hynix’s American Depositary Receipts (ADRs), listed in the U.S., surged 17.52%, recovering to their initial public offering price of $149. Analysts also note that the announcement the previous day (the 30th, Korea time) that SK Group Chairman Choi Tae-won had purchased 3,620 shares of SK hynix stock (worth 4.8 billion won) on the open market served as a trigger for the stock’s rebound.
Regarding SK hynix’s stock price, Chairman Choi recently stated, “Since memory will always be in demand, the price will trend upward over time,” adding, “Rather than buying and selling, holding onto your shares is a good way to preserve your wealth.”