Overview
- The benchmark index rose 2.27% to 4,309.63 on Jan. 2, the first trading day of 2026, marking a new all-time closing high.
- Samsung Electronics jumped 7.17% and SK hynix gained 3.99%, with both stocks ending at record highs.
- Foreign investors bought a net 644.68 billion won, while individuals and institutions were net sellers by the close.
- Sector performance diverged as LG Energy Solution fell 2.04% and LG Chem dropped 3.15%, while Celltrion rallied 11.88%.
- Trading began an hour late at 10 a.m., and the won weakened to about 1,441.8 per U.S. dollar by late afternoon.