(LEAD) Seoul stocks open lower on Wall Street losses, AI concerns

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SEOUL, Oct. 30 (Yonhap) -- South Korean stocks opened lower Friday, tracking overnight losses on Wall Street, as renewed concerns over the sustainability of the artificial intelligence (AI) boom weighed on investor sentiment.

After opening 2.99 percent lower, the benchmark Korea Composite Stock Price Index (KOSPI) extended its earlier losses to trade lower 228.43 points, or 3.85 percent, to 5,709.23 as of 9:15 a.m.

The index fell 1.24 percent in the previous session on profit-taking in heavyweight chip stocks, despite Samsung Electronics' record quarterly earnings.

Overnight, Wall Street shares retreated, led by a sell-off in technology shares.

Google parent Alphabet plunged more than 12 percent after its third-quarter revenue rose 25 percent on-year to $127.58 billion but missed market expectations, raising concerns over returns on massive AI investments.

The tech-heavy Nasdaq Composite Index shed 1.38 percent, while the Philadelphia Semiconductor Index fell 1.4 percent, weighing on sentiment toward South Korean chipmakers.

Financial data is shown on a screen in the dealing room of Hana Bank in central Seoul after the market opened on Oct. 30, 2026. (Yonhap)

KOSPI heavyweights traded lower.

Top market cap Samsung Electronics fell 3.66 percent, and chip giant SK hynix surrendered 6.82 percent.

Leading automaker Hyundai Motor slipped 2.39 percent after lowering its annual sales target and investment plans amid a challenging business environment.

Defense firm Hanwha Aerospace slumped 7.76 percent after reporting weaker-than-expected third-quarter earnings due to delays in deliveries of K9 self-propelled howitzers to Poland.

The Korean won was trading at 1,339.2 won against the U.S. dollar as of 9:15 a.m., up 0.3 won from the previous stock trading session's close.

ejkim@yna.co.kr (END)

(LEAD) Seoul stocks open lower on Wall Street losses, AI concerns

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首尔，10月30日（韩联社）——由于对人工智能（AI）繁荣的可持续性的担忧再次加剧，投资者情绪承压，韩国股市周五开盘走低，追随隔夜华尔街的跌势。

韩国综合股价指数（KOSPI）开盘下跌2.99%后，延续早盘跌势，截至上午9点15分，下跌228.43点，跌幅3.85%，报5709.23点。

尽管三星电子公布了创纪录的季度收益，但由于权重芯片股的获利回吐，该指数在前一交易日下跌了1.24%。

隔夜，华尔街股市回落，科技股抛售潮领跌。

谷歌母公司Alphabet股价暴跌超过12%，此前该公司第三季度营收同比增长25%至1275.8亿美元，但低于市场预期，引发了人们对大规模人工智能投资回报的担忧。

科技股为主的纳斯达克综合指数下跌 1.38%，费城半导体指数下跌 1.4%，这打击了市场对韩国芯片制造商的信心。

2026年10月30日股市开盘后，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）

KOSPI指数成分股下跌。

市值最高的三星电子下跌 3.66%，芯片巨头 SK 海力士下跌 6.82%。

在充满挑战的商业环境下，领先的汽车制造商现代汽车下调了年度销售目标和投资计划，股价下跌2.39%。

由于向波兰交付 K9 自行榴弹炮的订单延迟，国防公司韩华航空航天公布的第三季度盈利低于预期，导致其股价下跌 7.76%。

截至上午 9 点 15 分，韩元兑美元汇率为 1339.2 韩元，比前一交易日收盘价上涨 0.3 韩元。

ejkim@yna.co.kr (完)

（导语）受华尔街股市下跌和人工智能担忧影响，首尔股市低开。