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South Korean equities suffered their steepest decline of the latest regional selloff after renewed U.S.-Iran fighting pushed oil prices sharply higher and drove investors out of technology stocks.
The KOSPI closed 8.95% lower at 6,806.93 after falling more than 9% during the session. The Korea Exchange halted trading for 20 minutes when the decline remained above its 8% circuit-breaker threshold for more than one minute.
Foreign investors sold about 1.7 trillion won ($1.13 billion) of KOSPI shares, while institutional investors unloaded another 2.2 trillion won. Retail investors bought close to 3.9 trillion won as losses accelerated across leveraged products and semiconductor holdings.
The selloff followed a <a href="https://www.centcom.mil/MEDIA/PUBLIC-RELEASES/Article/4541002/centcom-completes-another-wave-of-strikes-against-iran/" rel="noopener noreferrer nofollow">new wave of U.S. strikes against Iranian military targets</a>. U.S. Central Command targeted air-defense systems, coastal radar sites, missile and drone capabilities after attacks on commercial shipping through the Strait of Hormuz.
<h2 id="sk-hynix-and-samsung-lead-technology-rout">SK Hynix And Samsung Lead Technology Rout</h2>
SK Hynix fell 15.37% to 1.845 million won, its largest one-day decline on record. Samsung Electronics lost 10.7%, while SK Square dropped 17.6%.
The reversal hit a market that had become heavily concentrated around artificial intelligence and high-bandwidth memory stocks. SK Hynix and Samsung had driven much of the KOSPI’s advance during the first half of 2026, leaving the index exposed when investors began reducing chip positions.
The <a href="https://cryptoadventure.com/sk-hynix-crashes-15-4-in-biggest-drop-on-record/" rel="noopener noreferrer nofollow">record fall in SK Hynix</a> came one trading session after the company’s U.S.-listed shares completed their Nasdaq debut. Its American depositary receipts later fell another 9.3% as the semiconductor selloff reached Wall Street.
China’s benchmark <a href="https://english.sse.com.cn/markets/indices/data/list/basic/?COMPANY_CODE=000001&amp;INDEX_Code=000001" rel="noopener noreferrer nofollow">Shanghai Composite closed 1.54% lower</a> at 3,934.74, while losses also spread through Japanese and other regional equity markets.
<h2 id="oil-surge-pulls-bitcoin-below-63-000">Oil Surge Pulls Bitcoin Below $63,000</h2>
U.S. crude <a href="https://www.reuters.com/business/media-telecom/global-markets-global-markets-2026-07-13/" rel="noopener noreferrer nofollow">settled 9.4% higher at $78.14</a>, while Brent gained 9.6% to $83.30 as shipping risks returned to the Strait of Hormuz. The waterway carries roughly one-fifth of global oil supply, leaving energy-importing Asian economies exposed to prolonged disruption.
Bitcoin fell alongside technology stocks, dropping below the $63,000 midpoint of its short-term channel. BTC reached about $61,800 before recovering above $62,500, bringing the <a href="https://cryptoadventure.com/bitcoin-loses-63000-as-channel-rejection-puts-61700-support-in-focus/" rel="noopener noreferrer nofollow">$61,700 lower boundary</a> back into play.
The post <a href="https://cryptoadventure.com/asian-stocks-slide-as-u-s-iran-strikes-send-oil-up-9/" rel="noopener noreferrer nofollow">Asian Stocks Slide As U.S.-Iran Strikes Send Oil Up 9%</a> appeared first on <a href="https://cryptoadventure.com" rel="noopener noreferrer nofollow">Crypto Adventure</a>.

Asian Stocks Slide As U.S.-Iran Strikes Send Oil Up 9%

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