KOSPI Drops 4.2% as Samsung and SK Hynix Lead Tech Selloff

The Kospi lost 4.5% to 6,306.40 on Thursday, Aug. 6, 2026, marking a sharp session decline for Seoul equities (AP).

SK Hynix was down 9.7% after dropping ahead of the open in Seoul, while Samsung Electronics lost 6.1% in the same rout, concentrating the damage in large-cap chip names (AP).

Market commentary linked the Asia chip selloff to profit-taking and risk reduction before the U.S. nonfarm payrolls report, according to Stephen Innes of SPI Asset Management (AP).

Data Snapshot

MetricCurrentPreviousChangePeriodAs ofSourceKOSPI index (close)6,306.40—lost 4.5%session (Thurs., Aug. 6, 2026)2026-08-06Associated PressSK Hynix share movementdown 9.7%—down 9.7%after dropping ahead of the open in Seoul (Thurs., Aug. 6, 2026)2026-08-06Associated PressSamsung Electronics share movementlost 6.1%—lost 6.1%session (Thurs., Aug. 6, 2026)2026-08-06Associated Press

What changed in the KOSPI on Aug. 6

The benchmark closed at 6,306.40, down 4.5% on the session. Within the move, SK Hynix fell 9.7% after an early drop before the open, and Samsung Electronics declined 6.1% (AP).

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