Seoul shares crash over 7 pct on chip rout amid AI, inflation woes

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SEOUL, Oct. 15 (Yonhap) -- South Korean stocks plunged more than 7 percent Thursday as major chipmakers extended losses amid growing concerns over the sustainability of artificial intelligence (AI)-related investments and rate hikes by the Federal Reserve. The Korean won weakened against the U.S. dollar.

After opening 5.59 percent lower, the benchmark Korea Composite Stock Price Index (KOSPI) extended its losses, tumbling 454.59 points, or 7.57 percent, to end at 5,554.22, after dipping as low as 5,450.81.

The KOSPI fell for the seventh consecutive session, marking its longest losing streak since September 2024.

The sharp sell-off prompted the Korea Exchange (KRX) to activate a sell-side sidecar shortly after the market opened, suspending program selling for five minutes as KOSPI 200 futures fell more than 5 percent for at least one minute.

As losses deepened, the bourse operator activated a circuit breaker at 12:38 p.m., halting trading on the main bourse for 20 minutes after the KOSPI dropped more than 8 percent from the previous session's close.

Overnight, U.S. stocks closed lower as renewed concerns over the sustainability of AI-related spending and hotter-than-expected September inflation data dampened investor sentiment.

The U.S. Consumer Price Index (CPI) rose 0.6 percent on month in September, its fastest monthly increase since April, fueling concerns that persistent inflation could prod the Fed to raise interest rates.

Financial data is displayed on a screen inside the dealing room of Hana Bank in central Seoul on Oct. 15, 2026. (Yonhap)

ejkim@yna.co.kr (END)

Seoul shares crash over 7 pct on chip rout amid AI, inflation woes

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首尔，10月15日（韩联社）——周四，韩国股市暴跌逾7%，主要芯片制造商股价延续跌势，原因是市场对人工智能（AI）相关投资的可持续性以及美联储加息的担忧日益加剧。韩元兑美元汇率走弱。

韩国综合股价指数（KOSPI）开盘下跌 5.59%，随后跌势扩大，下跌 454.59 点，跌幅达 7.57%，收于 5,554.22 点，盘中一度跌至 5,450.81 点。

韩国综合股价指数连续第七个交易日下跌，创下自2024年9月以来最长连跌纪录。

急剧的抛售促使韩国交易所（KRX）在市场开盘后不久启动卖方侧车机制，暂停程序化交易五分钟，因为 KOSPI 200 指数期货在至少一分钟内下跌超过 5%。

随着跌幅加深，交易所运营商于下午 12:38 启动熔断机制，在韩国综合股价指数 (KOSPI) 较前一交易日收盘价下跌超过 8% 后，暂停主板交易 20 分钟。

隔夜，由于对人工智能相关支出可持续性的担忧再次加剧，以及9月份通胀数据高于预期，投资者情绪受到打击，美国股市收低。

美国9月份消费者价格指数（CPI）环比上涨0.6%，创下4月份以来最快的月度涨幅，加剧了人们对持续通胀可能促使美联储提高利率的担忧。

2026年10月15日，首尔市中心韩亚银行交易室内的屏幕上显示着金融数据。（韩联社）

ejkim@yna.co.kr (完)

受人工智能和通胀担忧影响，芯片股暴跌，首尔股市暴跌逾7%。