Strota/ Newsroom/ Global Markets/ 2026-10-14

KOSPI tumbled 4.2%

Strota Newsroom · Global Markets · session of 2026-10-14 · market close

KOSPI closed at 6,118.63 on 2026-10-14, tumbled 4.2% on the session and is +45.2% year-to-date. Here is what the market data shows.

South Korea's KOSPI fell 4.16% on October 14, closing at 6118.63. The drop extended a sharp slide: the index lost 12.64% over the past week and 12.02% over the past month, and it was down 15.57% across three months.

The longer view looked very different. Even after the recent selling, the KOSPI remained up 45.19% for the year to date and sat 71.78% above its low of the past year, 3561.81. It was also 32.87% below its high of the past year, 9114.55. The close left the index under both its 50-day moving average, an average of recent closing levels, at 6686.35, and its 200-day average at 6385.85.

Peer markets closed on three different dates, so they do not describe one shared session. Among markets that traded on October 14, the same day as the KOSPI, Japan's Nikkei fell 1.46% and Australia's ASX 200 slipped 0.86%. In the most recent US session, on October 13, the S&P 500 eased 0.02%, the Nasdaq lost 0.15% and the Dow fell 0.35%. The latest available closes for several other markets dated from October 12: the FTSE 100 gained 0.99%, the DAX 0.76%, the Euro Stoxx 50 0.45% and the CAC 40 0.38%, while in Asia the Hang Seng added 0.25%, Shanghai fell 0.43% and Taiwan's TAIEX dipped 0.02%. India's Sensex lost 0.76% and the Nifty 50 0.7% on that date.

The headlines centred on chip stocks. A report from NBC News said the KOSPI had sunk more than 7% in a semiconductor sell-off tied to worries about the AI boom; that figure does not match the 4.16% close recorded here and appears to describe an earlier session. Business Insider reported that turmoil in Korea was spilling into US chip stocks, and KED Global ran a piece describing the KOSPI as having gone from the world's best-performing market to its worst.

One headline pointed the other way. TradingKey, in a more recent report, said Japanese and South Korean stocks had rebounded in early trading, with the KOSPI up over 1.7% and Samsung and SK Hynix also higher. That account conflicts with the day's recorded loss, and the available data does not establish which session or time of day the report covers.

What the data shows is a steep, fast decline that left the index below its main moving averages while still holding a large gain for the year. The headlines link the selling to semiconductors, but they are reports rather than confirmed causes, and the data alone does not establish a single driver for the move.

The numbers

Around the world (same session)

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How this article was made: Strota assembled the market data above (the index's price history, same-session peer-market moves and public headlines) and an AI model wrote the narrative strictly from that evidence — it is not permitted to add outside facts or numbers. Every figure comes from the underlying market/public data.