Strota/ Newsroom/ Global Markets/ 2026-10-13

KOSPI tumbled 4.8%

Strota Newsroom · Global Markets · session of 2026-10-13 · market close

KOSPI closed at 6,078.56 on 2026-10-13, tumbled 4.8% on the session and is +44.2% year-to-date. Here is what the market data shows.

South Korea's KOSPI fell 4.79% on Tuesday, 13 October, closing at 6078.56. It was the largest one-day loss among the world indices tracked alongside it, and it deepened an already heavy slide: the benchmark was down 13.21% over the past week, 12.6% over the past month and 16.12% over three months.

The longer view is more mixed. Even after the sell-off, the KOSPI was still up 44.24% for the year to date, a measure of how far it had climbed earlier in 2026. It finished 33.31% below its 52-week high of 9114.55 and 70.66% above its 52-week low of 3561.81. The close also left it beneath both its 50-day moving average, at 6685.55, and its 200-day moving average, at 6385.65. Moving averages smooth out daily noise to show the underlying trend, and a close below both suggests the medium- and longer-term uptrend has been broken for now.

Peer markets need to be read by date, because not every exchange had closed for the same session. Of the markets with a close dated 13 October, Japan's Nikkei fell 2.2% and Australia's ASX 200 slipped 0.38%, so the selling elsewhere in Asia was far milder than in Seoul. The other peers' latest closes are dated 12 October. In the US, the S&P 500 eased 0.06%, the Nasdaq lost 0.44% and the Dow rose 0.38%. Europe was firmer, with the FTSE 100 up 0.99%, the DAX up 0.76%, the CAC 40 up 0.38% and the Euro Stoxx 50 up 0.45%. In Asia, the Hang Seng gained 0.25%, Shanghai dropped 0.43% and Taiwan's TAIEX was down 0.02%, while India's Sensex fell 0.76% and the Nifty 50 lost 0.7%.

The news headlines in the pack were published roughly 15 to 19 hours before it was compiled, so they describe Monday's session on 12 October rather than Tuesday's fall. According to a headline from TradingKey, the KOSPI slumped 3.65% below 6,400 that day, with Samsung and SK Hynix each dropping over 4%. Businesskorea's closing report said the index tumbled to the 6,300 range amid heavy selling by foreign investors, and GuruFocus also tied a 3.65% drop to a foreign sell-off. A headline from 조선일보 (Chosun Ilbo) linked a 3% plunge to concerns about the AI industry.

Taken together, those reports describe a sharp decline on Monday, which means Tuesday's loss was a second consecutive heavy session for Korean shares. What the pack does not contain is any report on Tuesday itself. Whether the foreign selling and AI-sector worries cited for Monday carried over into the 4.79% drop is plausible but unconfirmed; the data does not establish a single driver for Tuesday's 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.