Singapore · Wednesday, September 30, 2026
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Seoul Stocks Climb on Tech Strength, Samsung Electronics Up 3.26%

The Korea Composite Stock Price Index (KOSPI) advanced 0.93% to 6,958.32 on Monday, with chipmakers leading gains despite elevated crude oil prices.

By Marcus YeoPublished 22 September 20261 min read
Photo: Theodore Nguyen / Pexels

KOSPI Opens Higher

South Korea's benchmark Korea Composite Stock Price Index (KOSPI) started Monday, 21 September 2026, with gains, primarily driven by strong performances from major technology companies. The index climbed by 64.09 points, an increase of 0.93 percent, to reach 6,958.32 as of 9:15 a.m.

This positive opening followed a 2.66 percent advance in Seoul stocks on Friday, 18 September 2026, which was attributed to easing concerns about inflation among investors.

Tech Heavyweights Lead, Others Decline

Among market leaders, Samsung Electronics saw its shares rise by 3.26 percent, while chip manufacturer SK Hynix posted a 0.22 percent gain. These movements mirrored positive sentiment from the US market, where the Philadelphia Semiconductor Index jumped 2.78 percent on Friday.

In contrast, some other major companies experienced declines, with automaker Hyundai Motor falling 0.96 percent and battery producer LG Energy Solution shedding 2.75 percent of its value.

Market Caution Amid Oil Prices

Despite the tech-driven gains, investor caution persisted on Monday due to two factors: elevated global crude oil prices and ongoing tensions in the Middle East. Brent crude was trading at approximately $104.68 a barrel, contributing to concerns about inflation and broader geopolitical risks.

The Korean won also saw a slight depreciation against the US dollar, trading at 1,386.2 won, down 0.7 won from the previous stock trading session's close.

Why it matters

The divergent performance among South Korean market heavyweights, where semiconductor firms lead while other key sectors face declines, shows a selective capital allocation by investors. This suggests a focus on specific growth narratives within the technology sector, even as broader economic pressures like high energy costs weigh on overall market sentiment.

Investors should monitor crude oil price movements and upcoming inflation data, which could influence whether market participation broadens beyond current tech leaders.

This article is journalism, not investment advice; consult a licensed professional before making financial decisions. Market data is indicative, may be delayed, and should be verified with your broker or exchange before use.

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