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[BUSINESS] · South Korea, United States · 74 sources

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Part of situation: Global market volatility: AI growth and rising yields (23 clusters)

KOSPI and KOSDAQ trigger circuit breakers amid AI-driven sell-off

KOSPI crash AI infrastructure financing semiconductor stocks circuit breaker South Korean stock market

South Korea's KOSPI and KOSDAQ markets experienced a severe crash on October 15, triggering level 1 circuit breakers and a 20-minute trading halt. The KOSPI fell by over 7%, driven largely by a massive sell-off in semiconductor giants Samsung Electronics and SK Hynix. The downturn was fueled by growing market skepticism regarding the profitability and financing of artificial intelligence (AI) infrastructure, alongside concerns over high interest rates and increased competition from Chinese memory manufacturers.

Following the crash, the KOSPI saw a partial rebound on October 16, supported by bargain hunting from individual investors. However, foreign investors continued a multi-day selling streak. While some analysts view the decline as an excessive correction due to supply-demand imbalances and sentiment shifts, others remain cautious about the long-term sustainability of AI-driven growth and the debt burdens faced by smaller AI infrastructure providers like CoreWeave.

Entities

ChangXin Memory Technologies · CoreWeave · Federal Reserve · Financial Services Commission · Firmus Grid · Gartner · KOSDAQ · KOSPI · Korea Exchange · Nvidia · SK Hynix · Samsung Electronics

Claims

What the coverage asserts, and how many sources carry each claim.

Sources

전문가들과 함께 만드는 신문 - 조세금융신문(www.tfnews.co.kr) [www.tfmedia.co.kr]
대형주의 배신…고점서 하닉 57%·삼전 41%·현대차 49% ‘뚝’ - 시사저널 [www.sisajournal.com]
“삼전 7만원, 하이닉스 20만원” vs “과도한 조정”…엇갈린 전망 [www.kyeonggi.com]
주가 빠질수록 주식 더 받는 삼성전자 직원…주주와 엇갈린 손익 - 매일신문 [www.imaeil.com]
[특징주] 삼성전자·SK하이닉스, ‘검은 목요일’ 딛고 동반 반등 - 남도일보 [www.namdonews.com]
‘7연속 하락·폭락장 딛고’ 코스피, 개인 반발 매수에 5650선 반등 - 진일보 | 전남일보 [www.jnilbo.com]
[속보] 코스피 8% 폭락에 서킷브레이커 발동…코스닥도 거래 중단 [blockchainseoul.kr]
미국 AI주 급락에 코스피도 7%대 추락… 5500선까지 밀려 [www.womennews.co.kr]
Wall Street se desploma por temores sobre la IA y el alza del petróleo; Nasdaq cae 2.15% - nuevolaredo.tv [nuevolaredo.tv]
AI Debt Warning Signs Are Piling Up: Why Bond Markets Are Getting Nervous About AI Infrastructure Spending | The Motley Fool [www.fool.com]
KOSPI's $2T Daily Loss Erases S.Korea Entire GDP, NPS Assets [bitnewsbot.com]
Högt oljepris och AI-oro sänkte Wall Street [www.privataaffarer.se]
S&P 500 : l'effondrement tech dépasse le Nasdaq [www.top-affaires.fr]
Herstel op Aziatische beurzen dankzij chipsector [cashcow.nl]
"290층에도 사람 있어요"…SK하닉·현대차·삼성물산, 대형주 줄줄이 '반토막' - 스포탈코리아 [www.sportalkorea.com]
Kospi Crashes to Six-Month Low as Samsung and SK hynix Slump [businessnews.com.my]
Europe: Shares close out best week since June as earnings soften blow from tech sell-off [www.businesstimes.com.sg]
Le Nikkei 225 chute face aux doutes sur la rentabilité de l'IA [www.nouvelles-du-monde.com]
젠슨 황 “이 또한 지나가리라” ⋯AI 혼란과 주가 급락에도 낙관론 유지 [www.blockmedia.co.kr]
FamilyMart y Lawson celebran resultados históricos [noticiasnippon.jp]
Wall Street em Alerta: Ações de Tecnologia Despencam! [rpnews.com.br]
Investors Rotated Out of the AI Trade and Geopolitical Tensions Soared. The Nasdaq Saw Its Worst Week in Months. [www.ibtimes.com]
Nebius shares sink 12% as customer-funded AI buildout faces a test [www.techi.com]
Europas Aktien stabilisieren sich: KI-Kosten und Fed-Zinsangst bremsen [www.it-boltwise.de]
Asian Stock Markets Today: Tech Rebounds But Indonesia Plunges [eurasiabusinessnews.com]
Stocks rebound after tech sell-off and Indonesia shares sink on market downgrade warning [mymotherlode.com]
코스피 8일간 16% 급락…'삼성전자·하이닉스 투매 경계해야' - 매일신문 [www.imaeil.com]
SK Hynix e Samsung giù del 10%: pesano Fed e dubbi sull’IA [www.tecnoandroid.it]
“AI 서버 투자, 3년 안에 회수”…AWS CFO, 거품론에 실적으로 맞섰다 - 조세일보 [www.joseilbo.com]
코스피 7거래일 내리막에 3천억 청산…서학개미, '3배 레버리지' 베팅 [www.mbn.co.kr]
빚내서 주식 샀다가 날벼락…반대매매 3000억에 개미들 ‘곡소리’ [biz.heraldcorp.com]
Bourse de Toronto: les gagnants et les perdants du 16 octobre [www.lesaffaires.com]
Wall Street faces fresh risks as AI rout meets oil shock [cryptobriefing.com]
El Nasdaq cae más de un 2% mientras los inversionistas plantean dudas sobre la deuda vinculada a la IA [keyt.com]
El Nasdaq cae más de un 2% mientras los inversionistas plantean dudas sobre la deuda vinculada a la IA [krdo.com]
El Nasdaq cae más de un 2% mientras los inversionistas plantean dudas sobre la deuda vinculada a la IA [abc17news.com]
El Nasdaq cae más de un 2% mientras los inversionistas plantean dudas sobre la deuda vinculada a la IA [localnews8.com]
A noite na bolsa: os anúncios de Cosan (CSAN3), Rede D´Or (RDOR3), XP(XPBR31) e mais [www.seudinheiro.com]
US STOCKS-Wall Street tumbles as worries about AI trade and high oil prices weigh | International [www.devdiscourse.com]
Nasdaq Plunges To One-Month Low Amid Renewed Tech Sell-Off | 16.10.26 [www.finanzen.ch]
Wall Street Falls as AI Stocks Slide and Oil Prices Surge [econotimes.com]
How major US stock indexes fared Friday 10/16/2026 [krmg.com]
Wall Street recua pressionado por preocupações sobre IA; Nasdaq cai 2% e tem pior semana desde junho [www.moneytimes.com.br]
Nasdaq sinks more than 2% as investors raise questions about AI debt [kioncentralcoast.com]
Bolsas de NY fecham em baixa com temores por IA e Nasdaq recua mais de 2% [tnonline.uol.com.br]
ROUNDUP/Aktien Europa Schluss: Stabilisierung vor dem Wochenende | 16.10.26 [www.finanzen.at]
Wall Street stocks sink as tech sell-off rattles markets [thebusinessjournal.com]
Elon Musk oskarża producentów pamięci o „zdzierstwo”. Chwali Microna, choć ten osiąga nawet 90% marży na pamięciach dla klientów [www.gry-online.pl]
코스피 2%대 상승, 8거래일만 반등...코스닥은 매수 사이드카 [www.seoul.co.kr]
Akcje indonezyjskie wykluczone z globalnych indeksów [www.parkiet.com]
Kolejny sygnał ostrzegawczy dla inwestorów. Giganci AI znów tanieją [biznes.interia.pl]
2.05% 반등한 코스피, 5660선 마감…7거래일 연속 하락 ‘브레이크’ [www.hani.co.kr]
Asian markets rebound as Japan and Korea recover from tech rout [www.themarketreporter.co.uk]
Foreigners turn net sellers of Korean stocks in Sep [www.socialnews.xyz]
為替変動直撃、韓国で自動車・造船など製造業に広がる「アーニングショック」の恐怖 [www.chosunonline.com]
’전날 7% 폭락’ 코스피 반등. . . 3%대 상승 중 [www.hani.co.kr]
″삼전닉스 몰릴 때 뭐했나!″…외국 유명 앵커 '버럭', 왜? [www.mbn.co.kr]
US chip stocks fall: Nvidia drops 2%, AMD 4% as inflation and AI debt worries deepen sell-off [articles.thelocalreport.in]
KOSPI schließt nach Chip-Ausverkauf 7,6 Prozent tiefer [www.ad-hoc-news.de]
US chip stocks face $2 trillion loss [americanbazaaronline.com]
Samsung Stock Plunges Nearly 10% as Kospi Triggers Circuit Breaker on China Chip Threat and Hot US Inflation [www.ibtimes.com.au]
Korea's FSC battles AI-linked hacks and AI-driven stock rout [www.cryptopolitan.com]
이억원 "작은 변동성에도 경각심"…시장 안정·투자자 보호 주문 [www.newstomato.com]
Why Is KORU Plunging More Than 18% Overnight? [newsable.asianetnews.com]
SK Hynix cae más del 10% en una venta masiva de tecnológicas asiáticas [criptotendencia.com]
美股日誌｜股海沉淪 金油齊升 [www.stheadline.com]
Nasdaq sinks more than 2% as investors raise questions about AI debt [kesq.com]
View: Why the AI bubble fears are overblown [www.semafor.com]
Europa-Schluss: Stabilisierung vor dem Wochenende [www.finanznachrichten.de]
US markets are weighed down by an extended sell-off in the tech sector [www.newsday.com]
Korean Market Crash: Kospi Plummets 8% Amid Global AI Selloff, Trading Halted [gulfnews.com]
Korea Stock Market Halted: KOSPI Tumbles 8% On Chip Sell-Off And Fed Fears [coinpedia.org]
AI stock sell-off ramps up over debt-fueled data center spending fears: ‘Full-blown crisis of confidence’ [nypost.com]
Stocks rebound after tech sell-off and Indonesia shares sink on market downgrade warning [www.independent.co.uk]