KOSPI plunges 3.26%… SK Hynix falls 8.13%

KOSPI closed at 6,684.37, down 3.26% from the previous trading day, with decliners outnumbering advancers. SK Hynix and Samsung Electronics fell 8.13% and 5.15%, respectively, while KOSDAQ also recorded a negative average change.

Market at a Glance

KOSPI fell 3.26% to 6,684.37. Of the 889 traded stocks, 304 advanced, 540 declined, and 45 were unchanged, with decliners outnumbering advancers. Trading value was approximately 30.367 trillion won. By investor group, foreigners and institutions were net sellers, while individuals and other investors were net buyers.

Among the 1,719 traded KOSDAQ stocks, 671 advanced, 986 declined, and 62 were unchanged, with decliners prevailing. The average change was -0.48%, and trading value was approximately 7.1485 trillion won. Foreigners and institutions were net sellers, while individuals and other investors were net buyers.

Korea market daily snapshot for 20260914

Market-Leading Stocks

SK Hynix, one of the leading stocks by trading value, fell 8.13% to 1,683,000 won, with trading volume reaching 6 million shares. Its five-trading-day change was -5.82%. Samsung Electronics fell 5.15% to 248,500 won, with trading volume of 26.49 million shares and a five-trading-day change of -7.79%.

Stocks in Focus

Gwang Electronics rose 30.00% to 10,270 won, with trading volume of 28.97 million shares and a trading-volume ratio of 11.82 times compared with the 20-day average. Its five-trading-day change was 44.85%.

Bit and Electronics rose 12.53% to 4,355 won, with trading volume of 80.46 million shares and a trading-volume ratio of 5.90 times compared with the 20-day average. Xgate rose 6.97% to 17,180 won, with trading volume of 16.67 million shares and a trading-volume ratio of 10.78 times compared with the 20-day average.

Key Disclosures

Recent disclosures included Samsung Electronics’ “Report on the Ownership Status of Specific Securities, etc. by Executives and Major Shareholders,” “Report on the Trading Plan for Specific Securities, etc. by Executives and Major Shareholders,” and “Report of Changes in Share Ownership by the Largest Shareholder, etc.” SK Hynix disclosed a “Response to a Request for Inquiry Disclosure (Rumor or Report) (Undetermined).”

  • 삼성전자 · 임원ㆍ주요주주특정증권등소유상황보고서 (005930) — View DART filing
  • 삼성전자 · 임원ㆍ주요주주특정증권등거래계획보고서 (005930) — View DART filing
  • SK하이닉스 · 조회공시요구(풍문또는보도)에대한답변(미확정) (000660) — View DART filing
  • 삼성전자 · 최대주주등소유주식변동신고서 (005930) — View DART filing

Next Trading Day Checkpoints

  • It is necessary to check how the distribution of advancing and declining stocks on KOSPI changes.
  • Changes in the number of advancing and declining KOSDAQ stocks and the average change are areas to observe.
  • Changes in trading volume for SK Hynix, Samsung Electronics, and key stocks in focus may be examined.
  • It is necessary to check whether there are additional disclosures related to Samsung Electronics and SK Hynix.
This article was prepared solely on the basis of the verifiable price, trading volume, investor-flow, and disclosure information provided in the FACT JSON and is not intended as investment advice.

Recent reports on this topic

2026-10-16KOSPI Closes Up 2.05%…Samsung Electronics Gains 4.58%, HT Robotics Surges2026-10-15KOSPI Plunges 7.57%…Trading Concentrated in Samsung Electronics and SK hynix2026-10-14KOSPI Falls 0.44% to 6,008.81… HMM and Samsung SDI Rise2026-10-13KOSPI Plunges 5.46%…SK hynix and Samsung Electronics Both Decline2026-10-12KOSPI plunges 3.65%…Kumho Engineering & Construction rises 24.75%, decliners dominate
All reportsMOINARY Home