The facts
Aju Press reported the KOSPI closed at 5,648.79, down 210.29 points or 3.59%. AP separately reported a close of 5,626.08, down 4%; the sources' exact figures conflict. [1][3]
Reuters reported South Korean and Taiwanese markets each closed down 3.6%; AP reported Taiwan's Taiex fell 3.8%. Both accounts describe sharp technology-led declines, but their percentages differ slightly. [2][3]
South Korea's technology-heavy KOSDAQ fell 4.08% to 704.39, Aju Press reported. [1]
Aju Press and Reuters cited concerns about financing and returns on AI infrastructure spending, including major technology companies' fundraising plans, as factors weighing on investor sentiment. These are reported market explanations, not proof of a single cause. [1][2]
Still unconfirmed
- Whether losses continue in subsequent sessions and the ultimate effect on AI infrastructure investment plans remain unknown.
- The market reports identify investor concerns but do not establish a single cause for every index or stock decline.
Sources
References support the numbered facts above. Source checks: 3 Nov 2026, 09:32 UTC.
Aju Press supplies South Korea's local index levels; Reuters via The Edge and AP independently report cross-market declines. Their exact closes differ: Aju gives KOSPI 5,648.79/-3.59%, AP 5,626.08/-4%; Reuters gives South Korean and Taiwanese benchmarks -3.6%, while AP gives Taiwan's Taiex -3.8%. The story reports these figures with attribution and does not create a composite. Analysts' AI-funding explanations are not treated as a proven single cause.
- KOSPI tumbles over 3% as foreign sell-off continues on AI concerns
Aju Press · Reporting · 3 Nov 2026
Opened the full report. It gives the KOSPI and KOSDAQ closing levels and attributed investor/analyst explanations.
- Indonesia shares slide on MSCI worries; Singapore banks drag index lower
Reuters, via The Edge Malaysia · Reporting · 3 Nov 2026
Opened the full regional report. It says South Korean and Taiwanese markets each closed down 3.6% and MSCI Emerging Markets fell 1.8%, attributing the regional tech weakness to AI financing and valuation concerns. Separate Indonesia and Singapore drivers are not conflated.
- Tech losses weigh on global markets ahead of US midterm elections, while oil prices rise
The Associated Press · Reporting · 3 Nov 2026
Opened the full AP market report. It corroborates the direction and scale of declines but reports different closing figures for the KOSPI and Taiwan's Taiex; the article preserves those attributed differences rather than averaging them.