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KOSPI Closes at Record Above 5,500 on Chip-Led Surge

HBM4 commercialization drew heavy foreign demand for Korea’s chip leaders.

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A dealing room at Hana Bank in central Seoul on Feb. 12, 2026. (Yonhap)
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An electronic signboard at Hana Bank in Seoul shows that the Korea Composite Stock Price Index (KOSPI) topped the landmark 5,500-point mark on Feb. 12, 2026. (Yonhap)

Overview

  • The benchmark index jumped 3.13% to 5,522.27, its first-ever close above 5,500, capping a semiconductor-driven rally.
  • Samsung Electronics rose 6.44% to 178,600 won after announcing first commercial shipments of HBM4, while SK hynix gained 3.26% and Hanmi Semiconductor climbed nearly 10%.
  • Micron CFO Mark Murphy said HBM4 shipments to customers are already underway, reinforcing expectations for robust AI-memory demand.
  • Foreign investors net bought 3.0 trillion won and institutions added 1.37 trillion won as retail investors sold 4.45 trillion won; the won strengthened to about 1,440.2 per dollar and bond yields fell.
  • On Feb. 13, the index briefly set a fresh intraday peak above 5,580 before easing to 5,507.01 as profit-taking ahead of the Lunar New Year break and focus on upcoming U.S. CPI tempered risk appetite.