South Korea's KOSPI index posts its largest one-day gain on record
South Korea's KOSPI index rose 18 percent in one session, its largest single-day gain, amid a surge of investment in artificial intelligence.
Wednesday, October 28, 2026 · One sheet · Every desk
South Korea's KOSPI index rose 18 percent in one session, its largest single-day gain, amid a surge of investment in artificial intelligence.