South Korean retail investors hit borrowing limits as stock market rally strains leverage capacity

Retail investors in South Korea have reached borrowing caps at local brokerages as leveraged investments surge alongside the KOSPI's exceptional performance. The benchmark index has risen 83% this year, driven largely by retail investment in chipmakers like Samsung Electronics and SK Hynix. The situation highlights potential risks as borrowed investments hit record levels while regulatory limits constrain further leverage.
South Korean retail investors have exhausted borrowing limits imposed by brokerages, according to the Korea Capital Market Institute, as leveraged stock investments reach unprecedented levels. The KOSPI has surged 83% in 2025 following a 76% gain in 2024, making it the world's best-performing stock market in an AI-driven rally. Retail investors have poured 79 trillion won ($51.8 billion) into the market this year, while borrowed investments hit a record 29 trillion won as of Tuesday—a 71% increase from 17 trillion won at the end of 2025. The borrowing caps at individual brokerages are now being strictly enforced, limiting retail investors' ability to increase leverage further. This dynamic contrasts with foreign investors, who have sold 124 trillion won of shares for profit-taking, suggesting divergent investment strategies between domestic and international market participants.
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- Channel NewsAsiaCenter
Retail investors hit borrowing limits at South Korean brokerages, think tank says
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