Key Takeaways
- South Korea’s benchmark KOSPI index has extended its impressive rally to an eighth consecutive session, driven by robust institutional buying and strong performances in key sectors like construction, metals, and machinery.
- The index closed at 4,624.79 on January 12, marking a 0.84% increase and setting a new intraday all-time high of 4,652.54 earlier in the session.
- Leading the charge were LG Energy Solution ((/stock/373220)) and Doosan Enerbility ((/stock/034020)), which saw gains of 4.41% and 4.63% respectively, while Hyundai Motor ((/stock/005380)) also posted an increase.
- Despite the broader rally, major semiconductor players like Samsung Electronics ((/stock/005930)) experienced a slight dip, while SK Hynix ((/stock/000660)) managed a modest gain.
The South Korean KOSPI index continued its upward trajectory, extending its rally to an eighth consecutive session, a testament to sustained investor confidence. On January 12, the index closed at a record 4,624.79, climbing 0.84% from the previous trading day. This strong performance saw the KOSPI briefly touch an unprecedented intraday high of 4,652.54.
The rally was primarily fueled by significant institutional buying, which injected a net 208.9 billion won into the market. This strong institutional support helped the index rebound after briefly paring gains in the afternoon session.
Sectoral strength was broad, with the construction sector leading the charge, surging an impressive 8.49%. This was notably boosted by Hyundai Engineering & Construction ((/stock/000720)), which saw a substantial jump following news of large-scale supply contracts with nuclear power companies, reportedly involving Meta (META). Other sectors also demonstrated robust growth, including metal (up 3.35%), machinery & equipment (up 3.28%), transportation & storage (up 3.06%), non-metal (up 2.97%), and electricity & gas (up 2.87%).
Among individual stocks, LG Energy Solution ((/stock/373220)) saw a notable increase of 4.41%, while Doosan Enerbility ((/stock/034020)) climbed 4.63%. Hyundai Motor ((/stock/005380)) also closed higher, gaining 0.27%. In the semiconductor space, Samsung Electronics ((/stock/005930)) experienced a slight decline of 0.14%, closing at 138,800 won, while SK Hynix ((/stock/000660)) managed a 0.67% rise to 749,000 won.
The KOSPI's consistent upward trend has been observed over recent periods, with a previous rally in late 2025 also driven by strong performances in chip and battery stocks. Another notable eight-session winning streak was recorded in September 2025, buoyed by hopes of a capital gains tax withdrawal and an AI-driven rally on Wall Street.
Note on other headlines:
Information regarding "BSE 50 Index Slides 3%+ in China," "Weak Demand Pushes Aluminium Futures Lower," and "TASS: Nine Infants Dead at Novokuznetsk Maternity Hospital" for the specified date of January 13, 2026, could not be found in the conducted searches. The headline concerning the BSE 50 Index may contain a geographical inaccuracy, as the BSE 50 is typically associated with the Indian stock market, not China.
Ed Liston is a senior contributing editor at TheStockMarketWatch.com. An active market watcher and investor, Ed guides an independent team of experienced analysts and writes for multiple stock trader publications.