Seoul stocks up nearly 6 pct Wed. morning on SK hynix earnings

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SEOUL, Oct. 28 (Yonhap) -- South Korean stocks surged nearly 6 percent late Wednesday morning, led by a rally in chipmakers after SK hynix reported record quarterly earnings and announced additional shareholder returns.

After opening 2.23 percent higher, the benchmark Korea Composite Stock Price Index (KOSPI) extended its earlier gains to trade up 326.79 points, or 5.8 percent, to 5,965.13 as of 11:20 a.m.

As the rally gathered momentum, the Korea Exchange activated a buy-side sidecar shortly before 10 a.m., suspending buy orders in program trading for KOSPI-listed shares for five minutes.

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

Overnight, U.S. stocks extended their gains, led by a rally in artificial intelligence (AI)-related technology shares.

The tech-heavy Nasdaq Composite climbed 1.18 percent, while the Philadelphia Semiconductor Index jumped 3.6 percent, boosting investor sentiment toward South Korean chipmakers.

Earlier in the day, SK hynix reported record-high revenue and operating profit for the third quarter on robust memory chip demand and announced a shareholder return program worth more than 100 trillion won (US$75.3 billion) for 2026.

Meanwhile, investors remained cautious ahead of the Federal Reserve's rate decision scheduled early Thursday (Korean time), looking for signals on the future path of U.S. interest rates.

Financial data is shown on a screen in the dealing room of Hana Bank in central Seoul after the market closed on Oct. 26, 2026. (Yonhap)

KOSPI heavyweights rose across the board.

Market bellwether Samsung Electronics advanced 7.77 percent, and chip giant SK hynix increased 7.76 percent.

SK Square, the parent firm of SK hynix, jumped 8.7 percent, and Samsung Electro-Mechanics, an electronics component affiliate of Samsung Electronics, surged 9.16 percent.

The Korean won was trading at 1,336.0 won against the U.S. dollar at 11:20 a.m., down 9 won from the close of the previous stock trading session.

ejkim@yna.co.kr (END)

Seoul stocks up nearly 6 pct Wed. morning on SK hynix earnings

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首尔，10 月 28 日（韩联社）——周三上午晚些时候，韩国股市飙升近 6%，芯片制造商股价上涨，此前 SK 海力士公布了创纪录的季度收益并宣布了额外的股东回报。

韩国综合股价指数（KOSPI）开盘上涨2.23%后，延续早盘涨势，截至上午11:20，上涨326.79点，涨幅5.8%，至5965.13点。

随着涨势愈演愈烈，韩国交易所于上午 10 点前不久启动了买入侧交易，暂停了 KOSPI 上市股票的程序化交易买单 5 分钟。

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，美国股市延续涨势，人工智能（AI）相关科技股领涨。

科技股为主的纳斯达克综合指数上涨 1.18%，费城半导体指数上涨 3.6%，提振了投资者对韩国芯片制造商的信心。

当天早些时候，SK海力士公布了第三季度创纪录的营收和营业利润，这得益于强劲的存储芯片需求。该公司还宣布了一项价值超过100万亿韩元（753亿美元）的股东回报计划，该计划将于2026年实施。

与此同时，投资者在美联储周四（韩国时间）早些时候公布利率决议前保持谨慎，寻找美国利率未来走向的信号。

2026年10月26日股市收盘后，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指数成分股全面上涨。

市场风向标三星电子股价上涨7.77%，芯片巨头SK海力士股价上涨7.76%。

SK海力士的母公司SK Square股价上涨8.7%，三星电子的电子元件子公司三星电机股价飙升9.16%。

上午 11 点 20 分，韩元兑美元汇率为 1336.0 韩元，比前一交易日收盘价下跌 9 韩元。

ejkim@yna.co.kr (完)

受SK海力士财报提振，首尔股市周三早盘上涨近6%。