Key facts
- The KOSPI opened at 5,580.09, down 103.71 points, or 1.82%, Yonhap reported.
- Yonhap tied the opening decline to the Democratic Party's U.S. midterm election victory.
- The PHLX chip index fell 3.1% to a six-month low, per the report.
- The Dow rose 3%, the S&P 500 gained 1.6% and the Nasdaq added 1.4%, per Yonhap.
South Korea's benchmark KOSPI opened Thursday, November 5, 2026, down 103.71 points, or 1.82%, at 5,580.09, Yonhap reported. The outlet tied the opening decline to the Democratic Party's victory in the U.S. midterm elections and concern over tighter regulation of artificial intelligence data centers by the incoming Congress.
The report said U.S. stocks finished higher, with the Dow Jones Industrial Average up 3%, the S&P 500 up 1.6% and the Nasdaq Composite up 1.4%. The PHLX chip index fell 3.1% to a six-month low, which Yonhap attributed to investor concern about stricter AI data center rules.
The report did not name sources for the regulatory concern or specify which U.S. session the index moves refer to.