September 4, 2026
Stories from this day
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Economy · 3 min readKOSPI closes at 6,579.48 on September 3, 2026 — 123 points lost in 27 minutes, then recovered
Close — KOSPI 6,579.48 (+0.26%). KOSDAQ 790.21 (−1.71%), below the 800 level
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Economy · 3 min readS&P 500 closes at 7,747.71 on September 3, 2026 — one Fed speech cut hike odds from 63% to 50%
Close — S&P 500 7,747.71 (+1.06%), Dow 53,686.11 (+1.18%), Nasdaq 26,584.06 (+1.40%)
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Tech · 4 min readOpenAI launches GPT-6 Astra (September 3, 2026) — the model it calls the start of the AGI era
Name — the first GPT-6 model. OpenAI describes it as the beginning of the AGI era
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Tech · 4 min readNvidia buys Hugging Face for $12.9 billion (September 3, 2026) — 86 times revenue
Price — 12.93 billion dollars, roughly 86 times an annualised revenue of about 150 million
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Economy · 4 min readKorea to merge 109 public institutions (September 3, 2026) — 524 bodies become 415
Scale — 109 institutions and subsidiaries affected; the count falls from 524 to 415, about 21 percent
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World · 3 min readBrent at $96.20 on September 3, 2026 — Iran fires missiles at Kuwait
Price — Brent 96.20 dollars (+57 cents), above 97 intraday, up more than 7 percent on the week
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Tech · 4 min readBroadcom's fiscal Q3 2026 results (September 2) — AI revenue up 221%, stock down anyway
Results — revenue 29.59bn dollars (+86%), AI semiconductors 16.7bn (+221%), both above consensus
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Economy · 4 min readWhat weekly options are — how an expiry twice a week moves a whole index
Definition — an index option expiring weekly. KOSPI200 weeklies expire Mondays and Thursdays
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Tech · 4 min readWhat Hugging Face is — the model repository Nvidia paid $12.9 billion for
Definition — the public repository for open AI models, datasets and demo apps. 3m models, 18m developers
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Tech · 4 min readWhat AGI means — three definitions, and companies pick the one that suits them
Core — no agreed definition; at least three are in use and they select different systems