Seoul shares surge 3 pct on renewed AI optimism, easing oil prices

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SEOUL, Oct. 27 (Yonhap) -- Seoul shares closed higher Tuesday, led by gains in technology shares, as renewed optimism over artificial intelligence (AI) and falling oil prices boosted risk appetite. The Korean won strengthened against the U.S. dollar.

The benchmark Korea Composite Stock Price Index (KOSPI) gained 168.87 points, or 3.09 percent, to close at 5,638.34.

As the market rallied on strong foreign buying, the Korea Exchange activated a buy-side sidecar at 10:13 a.m., suspending buy orders in program trading for KOSPI-listed shares for five minutes. It was the first such action in four trading sessions.

The measure is triggered when KOSPI 200 futures rise at least 5 percent and remain at that level for one minute or longer.

On Wall Street overnight, the Dow Jones Industrial Average gained 0.28 percent, while the S&P 500 advanced 0.7 percent and the tech-heavy Nasdaq Composite climbed 0.82 percent.

Investor sentiment improved after AI startup Anthropic disclosed strong revenue growth in its U.S. initial public offering (IPO) filing, reigniting enthusiasm for AI-related stocks ahead of major tech earnings and the Federal Reserve's interest rate decision.

Oil prices fell on hopes of easing tensions in the Middle East, following reports of Qatari mediation efforts involving Iran and the United States.

Financial data is shown on a screen in the dealing room of Hana Bank in central Seoul on Oct. 27, 2026. (Yonhap)

ejkim@yna.co.kr (END)

Seoul shares surge 3 pct on renewed AI optimism, easing oil prices

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首尔，10月27日（韩联社）——周二，首尔股市收高，科技股领涨，人工智能(AI)前景重燃以及油价下跌提振了市场风险偏好。韩元兑美元汇率走强。

韩国综合股价指数（KOSPI）上涨168.87点，涨幅3.09%，收于5638.34点。

由于外资强劲买盘推动市场上涨，韩国交易所于上午10点13分启动了买盘侧挂操作，暂停了KOSPI上市股票的程序化交易买单五分钟。这是四个交易日以来的首次此类操作。

当 KOSPI 200 指数期货上涨至少 5% 并保持该水平一分钟或更长时间时，就会触发该措施。

隔夜华尔街股市，道琼斯工业平均指数上涨0.28%，标准普尔500指数上涨0.7%，以科技股为主的纳斯达克综合指数上涨0.82%。

人工智能初创公司 Anthropic 在其美国首次公开募股 (IPO) 文件中披露了强劲的收入增长，投资者情绪因此有所改善，在主要科技公司财报发布和美联储利率决定出台之前，重新燃起了人们对人工智能相关股票的热情。

有报道称卡塔尔正在斡旋伊朗和美国之间的冲突，受此影响，市场预期中东紧张局势将有所缓解，油价因此下跌。

2026年10月27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)

受人工智能前景重燃和油价回落提鼓舞，首尔股市上涨3%。