[Edaily Reporter Kwon Oh Seok ] MIRAE ASSET SECURITIES(006800)recently raised the margin requirements for certain domestic stocks in response to increased volatility in the domestic stock market.

MIRAE ASSET SECURITIES announced on the 2nd that it has partially revised its margin requirement system for domestic stocks in response to the significant increase in price volatility in the market and individual stocks over a short period, which has heightened investment risks for clients. The company explained that this is a preemptive measure aimed at reducing the risk of losses resulting from excessive leverage trading by clients and providing a more stable trading environment.
Recently, the domestic stock market has been exhibiting higher volatility than in the past, driven by a concentration of market capitalization in large-cap semiconductor stocks, an increase in assets of leveraged exchange-traded funds (ETFs), and more frequent short-term sharp price swings. In particular, leveraged products are structured in such a way that a decline in the price of the underlying asset generates additional selling pressure, which can amplify market shocks.
Outstanding balances from commission-based trading are also on the rise. From January 2025 to March 2026, the monthly average outstanding balance stood at approximately 9674억 원, but the rate of increase accelerated after March, reaching 1조 5632억 원 by June 2026. This represents a 61.5% increase compared to the average for the same period.
MIRAE ASSET SECURITIES determined that, given these market conditions, the existing margin system alone would be insufficient to adequately mitigate rapidly changing risks. Accordingly, it prioritized the protection of client assets and trading stability and implemented adjustments to margin requirements.
As a result of this change, the margin requirement for securities previously subject to 20% or 30% rates has been uniformly raised to 40%. Securities already subject to 40% or 100% margin requirements will maintain their current rates. The revised margin requirements took effect on July 1, 2026.
In addition, the company has temporarily suspended new applications for its customized margin service and the extension of existing service terms. The suspension of new applications took effect on July 1, and the suspension of term extensions took effect on July 3. The company plans to provide a separate notice regarding the resumption of these services after considering future market conditions.
An official from MIRAE ASSET SECURITIES stated, “This adjustment to margin rates is not a measure intended to restrict clients’ investment activities, but rather a risk management measure to protect client assets from unexpected market shocks,” adding, “We will continue to closely monitor market conditions and do our best to ensure that clients can invest in a more stable environment.”