KOSPI 4800 Breakout: South Korean Stocks Hit Record High as Market Cap Tops 4,000 Trillion Won

It's an eleven-day winning streak that's rewriting history. South Korea's benchmark KOSPI has shattered the 4,800-point barrier, propelling the total market capitalization past the monumental 4,000 trillion won mark for the first time. The rally, fueled by relentless semiconductor buying, shows no signs of cooling down.

Behind the KOSPI 4800 Record and Semiconductor Rally

On January 16, 2026, the KOSPI climbed 43.19 points (0.9%) to close at a record 4,840.74. The index even touched an intraday high of 4,863.82 during the session. This surge brings the total market value of the exchange to 4,004.9 trillion won. Remarkably, it took only three months to add another 1,000 trillion won after crossing the 3,000 trillion won threshold on October 15 last year.

Foreign and institutional investors are the ones driving this charge. According to Lee Jae-won, an analyst at Shinhan Securities, the market is reacting to TSMC's stellar growth reports and the recent U.S.-Taiwan trade agreement. These factors have boosted sentiment for Korean chipmakers, leading to a net purchase of 405 billion won by foreign investors today.

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Market Leaders and Currency Volatility

While stocks are soaring, the local currency is struggling. The Korean won fell to 1,473.6 against the U.S. dollar. Meanwhile, bond yields cooled off slightly, with the three-year Treasury yield dropping to 3.080%.