Exchange, brokers warn as Korea's margin loans surge nearly 50%

By Kim Yeon-jae Posted : October 17, 2025, 16:13 Updated : October 17, 2025, 16:13
Employees work at the dealing room of Hana Bank’s headquarters in Jung-gu Seoul on Oct 17 2025 Yonhap
Employees work at the dealing room of Hana Bank’s main branch in Jung-gu, Seoul, on Oct. 17, 2025. Yonhap

SEOUL, October 17 (AJP) - Leveraged stock investment in South Korea has soared nearly 50 percent this year to surpass 23 trillion won ($16.4 billion), as the benchmark KOSPI’s 50-percent rally fueled aggressive borrowing for equity trades — prompting warnings from regulators and market participants.

The balance of margin accounts at securities firms reached 23 trillion won, up 49 percent from 15.8 trillion won at the end of 2024, according to data released Friday by the Korea Financial Investment Association (KOFIA) and the Korea Exchange (KRX).

In a joint statement, KOFIA and KRX cautioned investors about the risks of leveraged trading, emphasizing that excessive borrowing could amplify losses in the event of a market downturn. They noted a particularly sharp increase in margin borrowing among investors under 30 and over 50, raising concern about overexposure among retail investors and retirees.

Margin trading allows investors to borrow funds from brokers to purchase shares, with those shares serving as collateral. If stock prices fall below maintenance levels, the collateral value erodes, triggering forced liquidations, or margin calls, at depressed prices — a process that can exacerbate market volatility.
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