Seoul stocks extend losses late Tuesday morning amid AI concerns

Seoul stocks fell sharply late Tuesday morning as concerns over investments in the artificial intelligence value chain drove a sell-off in major chip shares. The KOSPI dropped 136.06 points, or 2.36 percent, to 5,631.95 as of 11:20 a.m., after reaching an intraday low of 5,493.24. Samsung Electronics and SK hynix declined, while Samsung Electro-Mechanics gained. The Korean won strengthened to 1,327.6 won against the U.S. dollar.

The KOSPI opened 0.6 percent lower before extending its losses to an intraday low of 5,493.24.

The Dow Jones Industrial Average fell 0.07 percent overnight, while the S&P 500 rose 0.41 percent and the Nasdaq Composite gained 1.11 percent to 26,430.89.

Samsung Electronics fell 1.03 percent and SK hynix declined 2.74 percent.

Samsung Electro-Mechanics gained 2.48 percent after opening lower.

The Korean won was up 5.5 won from the previous session’s close at 1,327.6 won per U.S. dollar.

Published Oct 20, 2026 9:25 am KST

Updated Oct 20, 2026 11:40 am KST

The benchmark KOSPI, along with other indices, are displayed at Hana Bank's dealing room in Seoul, Tuesday. Yonhap

Seoul stocks were trading sharply lower late Tuesday morning as concerns over investments in the artificial intelligence (AI) value chain sparked a sell-off in major chip shares.

The benchmark Korea Composite Stock Price Index (KOSPI) fell 136.06 points, or 2.36 percent, to 5,631.95 as of 11:20 a.m.

After opening 0.6 percent lower, the index extended its losses to an intraday low of 5,493.24, before recovering some ground.

Overnight, U.S. stocks ended mixed as technology shares rebounded from their steepest weekly drop since June.

The Dow Jones Industrial Average edged down 0.07 percent, while the benchmark S&P 500 rose 0.41 percent and the tech-heavy Nasdaq Composite Index gained 1.11 percent to finish at 26,430.89.

In Seoul, tech stocks led the decline.

Chipmakers Samsung Electronics Co. and SK hynix Inc. fell 1.03 percent and 2.74 percent, respectively.

In contrast, Samsung Electro-Mechanics Co., an electronics components affiliate of Samsung Electronics, gained 2.48 percent after opening lower.

The Korean won was trading at 1,327.6 won against the U.S. dollar as of 11:20 a.m., up 5.5 won from the previous session's close.

周二上午晚些时候，首尔股市大幅下跌，主要芯片股遭遇抛售，原因是市场对人工智能价值链投资的担忧加剧。截至上午11:20，韩国综合股价指数（KOSPI）下跌136.06点，跌幅2.36%，至5631.95点，盘中一度触及5493.24点的低点。三星电子和SK海力士股价下跌，而三星电机股价上涨。韩元兑美元汇率升至1327.6。

韩国综合股价指数（KOSPI）开盘下跌0.6%，随后跌幅扩大至盘中低点5493.24点。

道琼斯工业平均指数隔夜下跌 0.07%，标准普尔 500 指数上涨 0.41%，纳斯达克综合指数上涨 1.11% 至 26,430.89 点。

三星电子股价下跌1.03%，SK海力士股价下跌2.74%。

三星电机股价在低开后上涨2.48%。

韩元兑美元汇率较前一交易日收盘价上涨5.5韩元，报1327.6韩元兑1美元。

发布于2026年10月20日上午9:25（韩国标准时间）

更新于2026年10月20日上午11:40（韩国标准时间）

周二，包括韩国综合股价指数（KOSPI）在内的多个指数在首尔韩亚银行的交易大厅展出。（韩联社）

周二上午晚些时候，首尔股市大幅下跌，原因是市场对人工智能（AI）价值链投资的担忧引发了主要芯片股的抛售。

截至上午11点20分，韩国综合股价指数（KOSPI）下跌136.06点，跌幅2.36%，至5631.95点。

该指数开盘下跌 0.6%，随后跌幅扩大至盘中低点 5,493.24，之后有所回升。

隔夜，美国股市涨跌互现，科技股从6月以来最大单周跌幅中反弹。

道琼斯工业平均指数小幅下跌 0.07%，而基准标准普尔 500 指数上涨 0.41%，以科技股为主的纳斯达克综合指数上涨 1.11%，收于 26,430.89 点。

在首尔，科技股领跌。

芯片制造商三星电子和SK海力士的股价分别下跌了1.03%和2.74%。

相比之下，三星电子旗下电子元件子公司三星电机公司在低开后上涨了 2.48%。

截至上午 11:20，韩元兑美元汇率为 1,327.6 韩元，较前一交易日收盘价上涨 5.5 韩元。