Seoul stocks extend losses as AI, U.S. inflation concerns persist

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SEOUL, Oct. 15 (Yonhap) -- Seoul stocks were trading sharply lower late Thursday morning as concerns over artificial intelligence (AI) trade and U.S. inflation data sparked a sell-off of major tech shares.

The benchmark Korea Composite Stock Price Index (KOSPI) fell 404.21 points, or 6.73 percent, to 5,604.6 as of 11:20 a.m.

In early trading, the benchmark index had fallen over 5 percent, triggering the country's bourse operator to temporary suspend trading for five minutes.

Overnight, U.S. stocks closed lower as concerns over the sustainability of AI spending and September consumer price data dampened investor sentiment.

The U.S. Consumer Price Index (CPI) for September rose 0.6 percent from a month earlier, the fastest level seen since April, according to official data released Wednesday (U.S. time).

In Seoul, most market top caps were trading lower.

Chip titans Samsung Electronics and SK hynix tumbled 7.87 percent and 9.87 percent, respectively.

Industry leader Hyundai Motor fell 5.1 percent, financial firm KB Financial slid 1.13 percent and defense giant Hanwha Aerospace dipped 1.54 percent.

Among the few winners was bio firm Celltrion, which added 3.13 percent.

The Korean won was trading at 1,350 won against the U.S. dollar as of 11:20 a.m., down 7.7 won from the close of the previous stock trading session.

A trader watches monitors inside a dealing room of Hana Bank in central Seoul on Oct. 15, 2026. (Yonhap)

fairydust@yna.co.kr (END)

Seoul stocks extend losses as AI, U.S. inflation concerns persist

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首尔，10月15日（韩联社）——周四上午晚些时候，首尔股市大幅下跌，原因是市场担忧人工智能（AI）贸易和美国通胀数据引发了主要科技股的抛售。

截至上午11点20分，韩国综合股价指数（KOSPI）下跌404.21点，跌幅6.73%，至5604.6点。

早盘交易中，基准指数下跌超过 5%，导致该国证券交易所运营商暂停交易 5 分钟。

隔夜，由于对人工智能支出可持续性的担忧以及9月份消费者价格数据的下滑，美国股市收低，投资者情绪受到打击。

根据周三（美国时间）公布的官方数据，美国9月份消费者价格指数（CPI）环比上涨0.6%，创下4月份以来的最快涨幅。

在首尔，大多数市值较大的股票交易价格下跌。

芯片巨头三星电子和SK海力士的股价分别下跌了7.87%和9.87%。

行业领军企业现代汽车股价下跌 5.1%，金融公司 KB Financial 股价下跌 1.13%，国防巨头韩华航空航天股价下跌 1.54%。

少数几家赢家之一是生物技术公司 Celltrion，该公司股价上涨了 3.13%。

截至上午 11 点 20 分，韩元兑美元汇率为 1350 韩元，较前一交易日收盘价下跌 7.7 韩元。

2026年10月15日，一名交易员在首尔市中心韩亚银行的交易室内观看监控屏幕。（韩联社）

fairydust@yna.co.kr (完)

受人工智能和美国通胀担忧持续影响，首尔股市跌幅扩大。