South Korea Stock Market Drops 44% After AI Chip Rally Fades

The South Korean stock market recently took a major hit, crashing nearly 44% over a span of 40 days. This sharp downturn wiped out two trillion dollars in market capitalization. The collapse was largely driven by heavy losses in major tech companies, specifically SK Hynix and Samsung Electronics.

These two firms were the primary engines behind a massive rally that lasted from December 2025 until June 2026. As global interest in AI technologies grew, the demand for specialized memory chips skyrocketed. Because these two companies account for nearly half of the entire South Korean market, their performance directly dictates the direction of the national index.

High levels of market leverage intensified the damage. Data shows that leveraged ETFs for these companies held billions in assets, far exceeding normal daily trading volumes. When the AI fueled momentum slowed, the high concentration and excessive borrowing triggered a wave of trade defaults. This combination created a perfect storm for a swift and painful correction.

Government officials are now working on plans to stabilize the situation. Traders are watching closely to see if these measures can restore confidence in the region. The volatility serves as a reminder of the risks involved when a market becomes too dependent on a single sector.