KOSPI Surged 17.9% in a Single Day - The Largest One-Day Gain in Its History

The KOSPI closed July 31 at 6,595.45, up 17.91% - the largest single-day gain in its history. SK Hynix hit the 30% daily limit. Samsung gained 27%. South Korea's chip exports grew 199.5% in June. Here is what drove the move and where the index goes next.