KOSPI Rockets 4.7% to 5,181 Points, Triggers Five‑Minute Buy‑Side Halt
Updated (31 articles)
Sharp Rebound Triggers Five‑Minute Buy‑Side Halt The benchmark KOSPI surged 231.74 points to 5,181.41 by 11:20 a.m. on Feb 3, a 4.68 % gain, prompting the Korea Exchange to impose a five‑minute buy‑side circuit breaker after the rapid rise, following a sell‑side pause the previous day [1].
Large‑Cap Leaders Drive Gains After Prior Day Sell‑Off Samsung Electronics jumped 6.58 % and SK hynix rose 7.83 %, while Hyundai Motor, Hanwha Aerospace and KB Financial added 1.57 %, 3.95 % and 2.92 % respectively, lifting most large‑cap shares [1]. The same heavyweights had fallen sharply on Feb 2, when Samsung slid 6.29 % and SK hynix dropped 8.69 % amid a 5.26 % market plunge [2].
Won Strengthens and U.S. Market Cues Influence Sentiment The Korean won strengthened to 1,448.8 per U.S. dollar, improving by 15.5 won from the prior session, reflecting broader optimism [1]. By contrast, the won had weakened to 1,464.3 per dollar on Feb 2, while U.S. Treasury yields rose modestly; Wall Street closed higher after a January manufacturing PMI signaled U.S. growth, bolstering Korean investor confidence [1][2].
Investors Track Fed Chair Nomination and Trade‑Policy Risks Market participants closely monitor the recent Federal Reserve chair nomination and escalating U.S.–Korea trade tensions, which had contributed to the Feb 2 sell‑off and remain a focus despite the rebound [1]. Earlier in the week, President Trump’s tariff warnings and subsequent signals of possible trade‑deal progress created volatility, underscoring the sensitivity of Korean equities to U.S. policy moves [5][6].
AI and Chip Demand Remain Core Drivers Despite Volatility AI‑related buying persisted through the rally, with investors continuing to favor semiconductor and AI hardware stocks, a trend noted in late‑January sessions when the KOSPI hit record highs [3][6]. Chipmakers such as Samsung and SK hynix have repeatedly set all‑time price records, reinforcing the sector’s role as a primary market engine.
Sources
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1.
Yonhap: South Korean Stocks Surge, KRX Triggers Temporary Halt: Details the 4.68 % KOSPI jump to 5,181.41, the five‑minute buy‑side circuit breaker, large‑cap gains, won strengthening, and investor focus on Fed chair and trade tensions .
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2.
Yonhap: South Korean Stocks Plunge Over 5% Amid Fed Chair Nomination and Precious‑Metal Slump: Describes the 5.26 % KOSPI drop to 4,949.67, sell‑side circuit breaker, massive foreign outflows, gold‑silver price crash, and won weakening .
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3.
Yonhap: South Korean Stocks Reach Record High as AI Buying Persists Amid U.S. Tariff Threat: Reports a record‑high KOSPI of 5,224.3, strong AI‑related buying, mixed net flows, and Trump’s tariff threat tempering optimism .
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4.
Yonhap: South Korean Stock Index Hits New High Above 5,200 Amid Strong Earnings: Highlights a KOSPI close of 5,221.25 driven by earnings reports, retail buying, and a weaker won .
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5.
Yonhap: South Korean Stocks Surge After Trump Signals Trade Deal Progress: Covers a 1.65 % KOSPI rise to 5,168.72 after Trump’s trade‑deal comments, chipmakers’ gains, and a slightly stronger won .
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6.
Yonhap: Seoul Shares Close Above 5,000 Points Amid Tariff Threat: Notes the KOSPI closing at 5,084.85, record highs for Samsung and SK hynix, foreign net buying, and bond‑yield movements amid tariff warnings .
Timeline
Dec 8, 2025 – The KOSPI climbs 1.34% to 4,154.85 ahead of the U.S. Federal Open Market Committee meeting, with investors pricing in a 0.25‑point rate cut; LG Energy Solution jumps 5.99% on a new Mercedes‑Benz supply deal, while Samsung and SK hynix rise on a positive tech outlook, and the won strengthens to 1,466.9 per dollar [30].
Dec 15, 2025 – The KOSPI falls 1.84% to 4,090.59 as AI‑profitability worries resurface after the December FOMC, prompting a sell‑off in Samsung (‑3.76%) and SK hynix (‑2.98%); the won edges higher to 1,471.0 per dollar and bond yields drop sharply [29].
Dec 16, 2025 – The index drops 2.24% to 3,999.13, with investors awaiting U.S. November non‑farm payroll data; Samsung slides 1.91% and SK hynix falls 4.33%, while defensive names like KT&G gain, and the won weakens to about 1,477 per dollar [28].
Dec 17, 2025 – The KOSPI opens 1.33% lower at 4,002.6 as AI fears intensify following Oracle’s data‑center funding pull‑out; U.S. indices retreat, and the won strengthens to 1,478.5 per dollar [27].
Dec 18, 2025 – The market plunges 1.53% to 3,994.5 on renewed AI valuation concerns, with Oracle’s data‑center setback cited by Daishin Securities analyst Lee Kyoung‑min, while Samsung (‑0.28%) and LG Energy Solution (‑8.9%) tumble; the won rises to 1,478.3 per dollar [26].
Dec 26, 2025 – The KOSPI opens 0.56% higher at 4,131.59 on “Santa‑rally” optimism and a Trump warning of raising South Korean tariffs to 25%; Samsung and SK hynix lead gains, while the won slips to 1,453.2 per dollar [25].
Jan 2, 2026 (early session) – The KOSPI opens at 4,238.83, buoyed by retail buying and strong chip gains as Samsung (+2.59%) and SK hynix (+0.92%) rise, while LG Energy Solution and LG Chem fall, and the won trades around 1,441 per dollar [24].
Jan 2, 2026 (later session) – The index closes at an all‑time high of 4,309.63, driven by Samsung (+7.17%) and SK hynix (+3.99%) hitting record levels; 2025 exports hit a $709.7 bn record, and Yuanta Securities analyst Kim Yong‑gu says the KOSPI should stay “neutral‑to‑positive” [22].
Jan 5, 2026 – The KOSPI surges 3.43% to 4,457.52, with Samsung jumping 7.47% to a six‑year high, AI‑driven optimism lifting tech and auto stocks, and the won weakening to 1,443.8 per dollar [21].
Jan 6, 2026 (early) – The benchmark breaks the 4,500 barrier for the first time, closing at 4,525.48 as semiconductor, brokerage and shipbuilding stocks lead; foreign investors flip to net sellers after two days of buying [20].
Jan 6, 2026 (later) – The KOSPI again finishes at 4,525.48, confirming the 4,500 milestone, with heavy trading despite more decliners than advancers and the won slipping to 1,445.5 per dollar [19].
Jan 6, 2026 (additional) – Technology, brokerages and shipbuilders drive the rally, with Samsung up 0.58% and SK hynix up 4.31%; retail buying offsets institutional selling, and the won weakens to 1,445.5 per dollar [18].
Jan 7, 2026 (open) – The KOSPI opens sharply higher, jumping 69.37 points to 4,594.85 and briefly breaching 4,600 as semiconductor and auto names surge; the won eases to 1,448.6 per dollar [17].
Jan 7, 2026 (close) – The index closes at a record 4,551.06 after a brief intraday high of 4,611.72; foreign investors net buy 1.25 trn won, Hyundai’s stock rockets 13.8% on a Boston Dynamics robot demo, and the won weakens to 1,445.8 per dollar [15].
Jan 8, 2026 – The KOSPI extends a five‑day rally to a fresh record of 4,552.37, led by shipbuilding and defense stocks (Hanwha Aerospace +7.92%); Samsung slips despite a record earnings outlook, and the won falls to 1,450.6 per dollar [14].
Jan 9, 2026 – The index hits a new near‑4,600 record at 4,586.32, with autos, defense and shipbuilding powering gains while foreign investors sell for a second straight day; the won strengthens to 1,441.5 per dollar [13].
Jan 16, 2026 (open) – The KOSPI opens above 4,800 for the first time at 4,807.36, spurred by U.S. gains on TSMC results; Samsung rises 0.9% while Naver and NCSOFT fall after losing AI‑foundation model competition slots, and the won softens to 1,471.9 per dollar [12].
Jan 16, 2026 (close) – The benchmark ends at a record 4,840.74, with semiconductor stocks (Samsung +3.47%) driving the rally, market cap surpassing 4,000 trn won, and analysts crediting Samsung’s earnings outlook for the momentum [11].
Jan 27, 2026 (early) – President Trump vows to raise U.S. tariffs on South Korean goods to 25%; the KOSPI slides 0.84% to 4,908.20 as auto and tech stocks tumble, while utilities rise and the won weakens to 1,449.4 per dollar [7].
Jan 27, 2026 (close) – The KOSPI closes above 5,000 for the first time at 5,084.85, after a 2.73% jump; Samsung and SK hynix hit all‑time highs, bond yields ease, and the won steadies at 1,446.2 per dollar [6].
Jan 28, 2026 – Trump signals progress on a trade deal, prompting the KOSPI to jump 1.65% to 5,168.72 in the opening minutes; Samsung and SK hynix lead gains, LG Energy Solution adds 9.55% on a $1.9 bn rocket contract, and the won strengthens to 1,433.5 per dollar [5].
Jan 29, 2026 – The index reaches 5,221.25, a fresh peak, as strong earnings from major firms lift the market despite a weaker won (1,426.3 per dollar) and mixed chip performances; retail investors net buy 1.6 trn won [4].
Jan 30, 2026 – The KOSPI hits a record high of 5,224.3, with AI‑related buying persisting, SK hynix surging 5.57% to a fresh high, and Trump’s tariff threat tempering optimism; the won weakens to 1,439.5 per dollar [3].
Feb 2, 2026 – The KOSPI plunges 5.26% to 4,949.67 after the Federal Reserve chair nomination and a >10% gold price crash that triggers the first KRX gold floor‑limit breach since March 2014; foreign outflows total 2.5 trn won, the won slides to 1,464.3 per dollar, and bond yields rise [2].
Feb 3, 2026 – The KOSPI rebounds 4.68% to 5,181.41, prompting a five‑minute buy‑side circuit breaker; Samsung (+6.58%) and SK hynix (+7.83%) lead gains, the won strengthens to 1,448.8 per dollar, and investors watch the Fed chair nomination and escalating U.S.–Korea trade tensions [1].
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