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KOSPI Extends Rebound on Defense and Shipbuilding Rally as Foreign and Institutional Buyers Return

Investors looked to Jerome Powell’s Jackson Hole remarks for rate clues that could steer near-term sentiment.

A dealing room at Hana Bank in central Seoul on Aug. 21, 2025 (Yonhap)
A dealing room at Hana Bank in downtown Seoul on Aug. 22, 2025 (Yonhap)
A dealing room at Hana Bank in central Seoul on Aug. 21, 2025 (Yonhap)
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Overview

  • South Korea’s benchmark KOSPI rose 0.86% to 3,168.73, marking a second straight advance after an early gain of more than 1%.
  • Institutional investors bought a net 159.1 billion won and foreign investors added 180.6 billion won, while retail investors sold 458.5 billion won.
  • Defense and shipbuilding stocks led the move, with Hanwha Aerospace up 6.83%, Hyundai Rotem up 4.14%, and HD Hyundai Heavy Industries up 2.33%.
  • Tech heavyweights rebounded, as Samsung Electronics gained 1.13% and SK hynix climbed 2.45% after a five-day slide.
  • Trading reflected anticipation of Powell’s Jackson Hole speech, and defense and shipbuilding shares drew support from optimism ahead of President Lee Jae Myung’s U.S. visit next week, while the won strengthened to 1,393.65 per dollar.