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South Korea’s Kospi index plunged more than 10% on Tuesday on heavy selling of chipmaking stocks that have gyrated recently due to concerns over the sustainability of the boom in artificial intelligence. Oil prices fell more than 1%, while U.S. futures were little changed. Trading was temporarily halted as Kospi dropped to its lowest level since April as shares in chipmakers Samsung Electronics and SK Hynix dropped sharply.

SINGAPORE, July 28 (Reuters) - Asian markets fell on Tuesday led by chipmakers on unease about the massive funding demands of the AI boom, while a slide in oil prices did relatively little to lift

South Korea's top financial regulator said on Tuesday that authorities would ‌consider a cap on single-stock leveraged exchange-traded ‌funds (ETF) investments for retail investors if needed, local media reports ​said. Lee Eog-weon, chairman of the Financial Services Commission, told a meeting with local brokerages and asset managers in Seoul that the regulator would review and ‌prepare additional measures ⁠to curb the demand for the ETF products, such as putting a cap ⁠on total value of investments for each individual.

South Korean chip stocks slumped on Tuesday, with Samsung Electronics and SK Hynix falling as much as ‌9.5% and 10.9%, respectively, as investors dumped AI-related bets amid mounting concerns ‌over financing risks tied to AI infrastructure spending and intensifying competition from China. SK Hynix's U.S.-listed shares had ​already slumped overnight, closing at $143.02, below their initial public offering price of $149. The benchmark KOSPI was trading down 7.3% as of 0032 GMT.

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0014 GMT — Japanese stocks are lower in early trade following overnight drops in U.S. technology stocks. Uncertainty over the Iran conflict is also weighing on the market. Investors are closely watching crude oil prices and developments in the Middle East after Saudi Arabia said it had intercepted drones that Iran-backed militias in Iraq had launched at the kingdom’s oil facilities.

(Bloomberg) -- A $470 billion rout in just a little over a month has flipped SK Hynix Inc. from one of the world’s hottest AI trades to one of the biggest portfolio question marks.Most Read from BloombergNvidia’s $750 Billion in Deals Reignite Circular AI FearsDeepSeek Suspends Fundraising After Viral US-China PostsS&P 500 Wobbles as AI Angst Offsets Oil Decline: Markets WrapChina Chipmaker CXMT Jumps 466% in Debut After Blockbuster IPOASML Slides on Report of China Starting DUV Tool ProductionS

Memory-chip stocks Micron and SK Hynix fell Monday after Chinese rival CXMT rocketed in its IPO on the Shanghai Stock Exchange.

China's biggest memory chipmaker, ChangXin Memory Technologies (CXMT), is surging in its IPO on the Shanghai Stock Exchange. Yahoo Finance Technology Editor Dan Howley explains what investors should know about emerging Chinese competition in the tech space.

SK hynix (NASDAQ:SKHY) shares jumped 6. 2% in pre-market trading to $164.

(Bloomberg) -- Nvidia Corp. is working on a fresh round of AI infrastructure deals potentially worth more than $750 billion, accelerating a streak of investments that skeptics warn is artificially inflating demand and valuations across the industry.Most Read from BloombergDeepSeek Suspends Fundraising After Viral US-China PostsUS, Iran Extend Pause in Strikes as Oman Holds Hormuz TalksSpaceX at $100 Would Imply Zero AI Value, Morgan Stanley SaysChina Chipmaker CXMT Jumps 466% in Debut After Bloc

(Bloomberg) -- China’s biggest IPO in more than a decade became the first major Asian test for crypto’s emerging pre-IPO futures — and the blockchain market largely delivered.Most Read from BloombergDeepSeek Suspends Fundraising After Viral US-China PostsUS, Iran Extend Pause in Strikes as Oman Holds Hormuz TalksSpaceX at $100 Would Imply Zero AI Value, Morgan Stanley SaysChina Chipmaker CXMT Jumps 466% in Debut After Blockbuster IPOStocks, Bonds Rise in Relief Rally as Oil Tumbles: Markets Wrap

Sometimes three’s a crowd. But when it comes to the memory boom there’s room, and plenty of demand, for more chip makers.

Memory-chip maker CXMT soared 466% in its first day of trading today to become mainland China’s most valuable listed company. But the company, China’s national champion in the red-hot memory-chip business, still has a long way to go to catch up with its global competitors.

Shares of the Chinese memory-chip company surged in their trading debut, buoying Beijing’s campaign to become a global force in semiconductors that power AI.

Shares of CXMT, China's largest memory chipmaker, soared Monday after they began trading in Shanghai in mainland China’s biggest initial public stock offering in recent years. CXMT's shares surged 472% and were trading up 462% by early afternoon. It has become the most valuable company listed on a mainland Chinese exchange, with a market capitalization of about 3.3 trillion yuan (more than $487 billion).

(Bloomberg) -- China’s memory-chip bellwether CXMT Corp. can extend its blockbuster stock market debut to rally 1,239% from its initial public offering price as it wins market share over time, according to Nomura Holdings Inc.Most Read from BloombergDeepSeek Suspends Fundraising After Viral US-China PostsSpaceX at $100 Would Imply Zero AI Value, Morgan Stanley SaysUS, Iran Extend Pause in Strikes as Oman Holds Hormuz TalksTrump Seethes as Iran War Spirals Anew With No End in SightAwakened Indian

Leaked Galaxy S27 camera plans suggest a broader Samsung lineup as retailers, carriers, and customers mull another premium smartphone tier. Samsung Electronics (SSNLF) may be preparing to give shoppers yet another expensive Galaxy phone to consider. Samsung is developing four Galaxy S27 models: the ...

Iran and Oman are also in talks that center around having Iran run vessel transit through the Strait of Hormuz with fewer restrictions on ships.

South Korean President Lee Jae Myung flew to San Francisco on July 24 for a summit with the most powerful names in artificial intelligence. Jensen Huang was there. Sam Altman was there. The heads of Samsung, SK Group, Hyundai Motor and Naver flew in. By the end of the day, roughly $950 billion in ...

Samsung Electronics and SK Hynix are preparing to unveil major supply agreements with American technology companies during President Lee Jae Myung’s visit to Silicon Valley. The negotiations behind these deals have been running for months. What changed is the venue, and that detail says something ...

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By Max A.

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Samsung is preparing to bring stablecoins to Samsung Wallet, marking one of the most significant crypto moves yet from a major smartphone maker. A stablecoin is a type of cryptocurrency designed to hold a steady value, typically pegged one-to-one to a currency like the U.S. dollar. Unlike Bitcoin ...

Chip stocks tumbled as investors cut risk amid Middle East tensions and ahead of CXMT's July 27 market debut.

SEOUL, July 24 () - South Korean chipmakers Samsung Electronics and SK Hynix will announce ‌large supply deals with U. technology companies ‌during President Lee Jae Myung's visit to San Francisco, a ​senior presidential official said.

(Bloomberg) -- Samsung Electronics Co. and SK Hynix Inc. are set to unveil major agreements involving “very large” sums with leading US technology companies during President Lee Jae Myung’s visit to Silicon Valley, a senior presidential official said.Most Read from BloombergRetina Chip Designed to Restore Sight to Go on Sale in EuropeHegseth Turns to UNC, Virginia Tech After Dropping Ivy LeagueApple Plans Overhaul of MacBooks, iMac in Push to Meet AI DemandTrump Rebuilds Tariffs With New Levies

(Bloomberg) -- South Korean stocks fell as funds cut exposure to chipmakers after overnight losses in US peers, while factoring in a Chinese rival’s imminent share sale and rising Middle East tensions. Most Read from BloombergRetina Chip Designed to Restore Sight to Go on Sale in EuropeHegseth Turns to UNC, Virginia Tech After Dropping Ivy LeagueApple Plans Overhaul of MacBooks, iMac in Push to Meet AI DemandAlphabet Falls as $205 Billion Spending Plan Fuels AI Cost FearTrump Rebuilds Tariffs Wi

Memory stocks were the hottest trade of 2026 until they weren't. In the span of a few weeks, one of the market's best-performing sectors flipped into a bear market. Micron (MU), Samsung, and SK Hynix (SKHY) all fell more than 20% from their late-June highs, and the Roundhill Memory ETF went ...