Employees take part in a ceremony at the trading room of Woori Bank in Seoul on Wednesday to celebrate the benchmark KOSPI closing at an all-time high of 7,384.56. Photo by Yonhap
South Korean stocks shot up nearly 6.5 percent Wednesday, extending a record-breaking run to top the 7,300-point mark, driven by a semiconductor rally and optimism for a potential peace deal in the Middle East. The local currency also strengthened against the U.S. dollar.
The benchmark Korea Composite Stock Price Index (KOSPI) added 447.57 points, or 6.45 percent, to a fresh record high of 7,384.56.
It marked the second-largest daily gain in terms of points following 490.36 points reached on March 5.
Trade volume was heavy at 984.4 million shares worth 58.2 trillion won (US$40 billion), with losers outnumbering winners 199 to 677.
Foreigners bought 3.1 trillion won worth of local shares, while institutions and individuals dumped a net 2.3 trillion won and 571.2 billion won, respectively.
Overnight, U.S. President Donald Trump said he would pause operations to escort ships through the Strait of Hormuz as part of efforts to reach a final agreement with Iran.
The KOSPI opened 2.25 percent higher to surpass the landmark 7,000-point threshold for the first time and extended the gains throughout the session.
The main index has been on a bullish run in recent months, surpassing the 5,000-point mark in late January and topping another milestone of 6,000 points in February.
After recouping its losses in March following the outbreak of the U.S.-Iran war in late February, the KOSPI breached the 7,000-point level on continued optimism over the artificial intelligence (AI) boom and hopes for the reopening of the key waterway.
“Global tech giants’ strong performances and the strengthened value chain for AI data centers boosted the AI-related shares,” Lee Kyung-min, an analyst at Daishin Securities, said. “In particular, the market’s top-three shares of Samsung Electronics, SK hynix and SK Square led the rally.”
Top-cap Samsung Electronics surged 14.41 percent to close at 266,000 won, pushing its market capitalization above 1.5 quadrillion won and becoming the second Asian company to surpass the $1 trillion milestone after Taiwan Semiconductor Manufacturing Co.
SK hynix soared 10.64 percent to 1.6 million won, and AI investment firm SK Square jumped 9.89 percent to 1.1 million won.
Hanmi Semiconductor, a chip manufacturing company, rose 4.37 percent to 394,500 won, and LG Electronics vaulted 8.17 percent to 154,900 won.
However, shipbuilding and defense shares dropped. Major shipyard HD Hyundai Heavy Industries fell 4.71 percent to 648,000 won, and defense giant Hanwha Aerospace lost 2.18 percent to 1.4 million won.
Leading biotech firm Samsung Biologics declined 0.34 percent to 1.48 million won, and top mobile carrier SK Telecom backtracked 1.95 percent to 95,500 won.
The Korean won was quoted at 1,455.1 won against the U.S. dollar at 3:30 p.m., up 7.7 won from the previous session.
The quotation marks the highest since February 27, when the currency closed at 1,439.7 to the greenback.
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