Seoul Stocks Surge at Open as Chip Shares Ride Renewed AI Optimism
South Korea’s KOSPI jumped more than 2 percent in early Tuesday trading as major semiconductor shares advanced, tracking a technology-led rally in the United States alongside lower oil prices and Treasury yields.
South Korean stocks opened sharply higher on Tuesday, with semiconductor heavyweights leading a broad advance as renewed optimism over artificial intelligence lifted technology shares across markets.
The benchmark Korea Composite Stock Price Index rose 141.58 points, or 2.02 percent, to 7,149.3 as of 9:15 a.m. The gain put the index firmly above the 7,100 level in early trading and reflected a strong improvement in investor sentiment toward large technology companies.
Samsung Electronics, the country’s largest company by market capitalization, gained 2.55 percent. SK hynix, another major pillar of South Korea’s semiconductor sector, advanced 3.21 percent. SK Square, the parent company of SK hynix, climbed 3.02 percent, while electronic components maker Samsung Electro-Mechanics jumped 6.58 percent.
The opening rally followed gains on Wall Street, where investors returned to AI-related stocks. The technology-heavy Nasdaq Composite rose 2.3 percent and closed at a record high on Monday in the United States. The S&P 500 gained 1.5 percent, while the Dow Jones Industrial Average added 0.7 percent.
Conditions outside the equity market also helped improve risk appetite. Global oil prices declined and U.S. Treasury yields softened, easing two sources of pressure that can weigh on shares. Lower energy prices can reduce concerns about inflation and corporate costs, while falling bond yields can make equities comparatively more attractive to investors.
The foreign exchange market also showed a stronger Korean currency in early trading. The won traded at 1,369.6 against the U.S. dollar, strengthening by 4.9 won from the previous stock-market session’s close. A firmer won can reduce the cost of imported energy and other dollar-priced goods, although currency movements have different effects across exporters and domestically focused businesses.
The early moves underscored how closely Seoul’s market remains tied to global demand for chips and the direction of U.S. technology shares. Samsung Electronics and SK hynix carry substantial weight in the KOSPI, meaning gains in the two companies can have an outsized effect on the benchmark.
Investors will be watching whether the opening momentum holds through the session. The initial rise captured a favorable combination of stronger overseas technology shares, easing oil prices, lower U.S. yields and a firmer won, but the final market outcome will depend on trading later in the day.
