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EVENT / TOPICHistorical

KOSPI Opens 3.5% Lower, 2026 Gain Slumps from 116% to 31%

1 reports1 sources10/20/2026 updated

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The KOSPI opened 3.5% lower on Tuesday, a sell‑off led by AI‑chip stocks that has cut the index’s projected 2026 return from a peak of 116% to about 31%. Over the past three weeks, the three biggest tech names have fallen nearly 30%, and foreign investors have been net sellers for seven consecutive trading days. The decline has heightened credit concerns, especially after CoreWeave’s bond prices fell, adding pressure on the market. The sharp drop in the KOSPI reflects a broader pullback in technology shares and signals potential tightening of credit conditions in the near term.

Written with AI from the reporting · updated 10/20/2026

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  1. 1Unclassified fact stationOct 20, 00:00recorded Oct 20, 10:11single source

    KOSPI 3.5%开盘下跌,2026年收益从116%缩水至31%

    Read original source ↗ BeInCryptoReplay this moment in the explorer
    Evidence & revisions · 1 source records
    Subject:
    KOSPI指数
    Action:
    开盘下跌
    Object:
    股指
    Occurred (fact side):
    Oct 20, 00:00
    BeInCrypto ↗Report pageOriginal / first version
    Published (valid side):
    Oct 20, 09:13
    First seen (known side):
    Oct 20, 10:11
    Fact stationSingle source · one-sided claim

    Copy may have been revised later; time replay is bounded. Layer labels group reading only, not causation between layers.

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Oct 20
  1. BeInCryptoRelated fact: single source
    KOSPI Opens 3.5% Lower as 2026 Rally Shrinks to 31%

    Report first recorded Oct 20, 10:11

    The Korea Composite Stock Price Index (KOSPI) fell 3.5% at Tuesday's open, driven by a chip-led AI sell-off that cut its 2026 gain from roughly 116% to 31%. The index is now about 39% below its June record close. The decline accelerated in July and October, with Samsung Electronics and SK Hynix - accounting for 44% of the index in May - dropping 19.74% and 28.38% between Oct. 1 and Oct. 16. Foreign investors turned net sellers, and the index fell seven straight sessions through Oct. 15 before a stronger-than-expected US inflation reading on Oct. 15 pushed it down 7.57% to 5,554.22. Margin loans peaked at 38.63 trillion won in June, and forced liquidations topped 50 billion won for four straight sessions through Oct. 16.

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