Seoul stocks open sharply lower amid renewed energy price woes | Yonhap News Agency

## Summary
OK SEOUL, March 23 (Yonhap) -- Seoul stocks opened sharply lower on Monday amid renewed energy price concerns after Tehran warned it could indefinitely close the Hormuz Strait, a key oil route. The benchmark Korea Composite Stock Price Index (KOSPI) fell 273.11 points, or 4.72 percent, to 5,508.09 in the first 15 minutes of trading. Financial data are shown on screens above a trader working inside the trading room of Hana Bank in central Seoul on March 23, 2026. (Yonhap) fairydust@yna.co.kr (END) Keywords #KOSPI Articles with issue keywords Most Liked Netflix, BTS to turn Seoul into world's 'biggest watch party' Four decades of Damien Hirst on display at MMCA, from shark to cherry blossoms (LEAD) FM Cho sidesteps questions on whether U.S. asked Seoul to send warships to Middle East (3rd LD) About 40,000 fans gather for BTS comeback concert in downtown Seoul Ex-U.S. officials voice concerns about Trump gov't 'vacating' deterrence assets from Indo-Pacific amid Iran war Most Saved Netflix, BTS to turn Seoul into world's 'biggest watch party' (LEAD) FM Cho sidesteps questions on whether U.S. asked Seoul to send warships to Middle East Four decades of Damien Hirst on display at MMCA, from shark to cherry blossoms Korean Pavilion at Venice Biennale seeks comfort through art, with Han Kang's sculpture of blackened trees Ex-U.S. officials voice concerns about Trump gov't 'vacating' deterrence assets from Indo-Pacific amid Iran war Most Viewed All Categories (3rd LD) About 40,000 fans gather for BTS comeback concert in downtown Seoul S. Korea set to convene 1st session of new Supreme People's Assembly Most Viewed More Most Viewed Photos Fans leave BTS concert Gwanghwamun crowded as BTS set to hold concert BTS holds comeback concert After BTS concert prev Seoul stocks open sharply lower amid renewed energy price woes Next Seoul stocks open sharply lower amid renewed energy price woes

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SEOUL, March 23 (Yonhap) -- Seoul stocks opened sharply lower on Monday amid renewed energy price concerns after Tehran warned it could indefinitely close the Hormuz Strait, a key oil route.
The benchmark Korea Composite Stock Price Index (KOSPI) fell 273.11 points, or 4.72 percent, to 5,508.09 in the first 15 minutes of trading.
The Korea Exchange, South Korea's main bourse operator, issued a sell-side sidecar soon after the opening bell amid a sharp drop, temporarily halting program trading.
On Friday, major stock indexes on Wall Street closed lower, as the war in Iran continued to ripple through financial markets. The S&P500 fell 1.5 percent, and the tech-heavy Nasdaq gave up 2 percent.
Investor sentiment was dampened as the war in Iran has been sending energy prices to record levels, raising concerns about inflation and complicating the outlook for the U.S. Federal Reserve's policy direction.
Fed Gov. Christopher Waller signaled that he may take a more conservative approach to interest rates in an interview with CNBC on Friday.
Adding further concerns is the recent warning from Iran that it would shutter the Hormuz Strait, in response to U.S. President Donald Trump's threat to "obliterate" Iran's power plants if the crucial waterway was not reopened in 48 hours.
In Seoul, most large-cap stocks were trading sharply lower.
Market top-cap Samsung Electronics fell 5 percent, while its chipmaking rival SK hynix retreated 5.56 percent.
Top automaker Hyundai Motor fell 4.09 percent, defense giant Hanwha Aerospace shed 3.86 percent, and major financial group KB Financial moved down 4.06 percent.
The Korean won was trading at 1,503.7 won against the U.S. dollar as of 9:15 a.m., down 3.1 won from the previous session.
Financial data are shown on screens above a trader working inside the trading room of Hana Bank in central Seoul on March 23, 2026. (Yonhap)
fairydust@yna.co.kr
(END)
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Seoul stocks open sharply lower amid renewed energy price woes
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## Expert Analysis

### Merits
N/A

### Areas for Consideration
- President Donald Trump's threat to "obliterate" Iran's power plants if the crucial waterway was not reopened in 48 hours.
- Financial data are shown on screens above a trader working inside the trading room of Hana Bank in central Seoul on March 23, 2026. (Yonhap) fairydust@yna.co.kr (END) Keywords #KOSPI Articles with issue keywords Most Liked Netflix, BTS to turn Seoul into world's 'biggest watch party' Four decades of Damien Hirst on display at MMCA, from shark to cherry blossoms (LEAD) FM Cho sidesteps questions on whether U.S. asked Seoul to send warships to Middle East (3rd LD) About 40,000 fans gather for BTS comeback concert in downtown Seoul Ex-U.S. officials voice concerns about Trump gov't 'vacating' deterrence assets from Indo-Pacific amid Iran war Most Saved Netflix, BTS to turn Seoul into world's 'biggest watch party' (LEAD) FM Cho sidesteps questions on whether U.S. asked Seoul to send warships to Middle East Four decades of Damien Hirst on display at MMCA, from shark to cherry blossoms Korean Pavilion at Venice Biennale seeks comfort through art, with Han Kang's sculpture of blackened trees Ex-U.S. officials voice concerns about Trump gov't 'vacating' deterrence assets from Indo-Pacific amid Iran war Most Viewed All Categories (3rd LD) About 40,000 fans gather for BTS comeback concert in downtown Seoul S.

### Implications
- OK SEOUL, March 23 (Yonhap) -- Seoul stocks opened sharply lower on Monday amid renewed energy price concerns after Tehran warned it could indefinitely close the Hormuz Strait, a key oil route.
- Federal Reserve's policy direction.
- Christopher Waller signaled that he may take a more conservative approach to interest rates in an interview with CNBC on Friday.
- Financial data are shown on screens above a trader working inside the trading room of Hana Bank in central Seoul on March 23, 2026. (Yonhap) fairydust@yna.co.kr (END) Keywords #KOSPI Articles with issue keywords Most Liked Netflix, BTS to turn Seoul into world's 'biggest watch party' Four decades of Damien Hirst on display at MMCA, from shark to cherry blossoms (LEAD) FM Cho sidesteps questions on whether U.S. asked Seoul to send warships to Middle East (3rd LD) About 40,000 fans gather for BTS comeback concert in downtown Seoul Ex-U.S. officials voice concerns about Trump gov't 'vacating' deterrence assets from Indo-Pacific amid Iran war Most Saved Netflix, BTS to turn Seoul into world's 'biggest watch party' (LEAD) FM Cho sidesteps questions on whether U.S. asked Seoul to send warships to Middle East Four decades of Damien Hirst on display at MMCA, from shark to cherry blossoms Korean Pavilion at Venice Biennale seeks comfort through art, with Han Kang's sculpture of blackened trees Ex-U.S. officials voice concerns about Trump gov't 'vacating' deterrence assets from Indo-Pacific amid Iran war Most Viewed All Categories (3rd LD) About 40,000 fans gather for BTS comeback concert in downtown Seoul S.

### Expert Commentary
This article covers seoul, percent, bts topics. Areas of concern are also raised. Readability: Flesch-Kincaid grade 0.0. Word count: 582.