Leveraged ETF Trading Costs: How Brokerage Fees Topped 100 Billion Won
According to South Korean broadcaster SBS, exchange and brokerage fee revenue from single-stock leveraged and inverse ETFs tied to Samsung Electronics and SK hynix reached approximately ₩117.26 billion between their launch on May 27 and the end of July.

The figure matters because it quantifies the cost generated by a narrow, high-turnover product segment before stricter investor requirements took effect. For traders, the relevant question is not only whether leverage is available, but how much activity the fee structure encourages.
The fee stack behind the products
The Korea Exchange collected ₩27.911 billion in trading, clearing and settlement fees during the period. Trading fees accounted for ₩24.139 billion, while clearing and settlement fees contributed ₩3.771 billion. Across 45 trading days, the exchange averaged approximately ₩620 million in daily fee revenue.
The average concealed significant concentration. Revenue exceeded ₩1 billion on some trading days, including ₩1.051 billion on June 24 and ₩1.011 billion on July 14. Those figures do not represent a trader’s individual charge. They show how quickly aggregate costs scale when order flow concentrates in a small number of leveraged instruments.
Securities firms generated a further ₩89.35 billion in brokerage fees from the Samsung Electronics and SK hynix products. The Financial Supervisory Service noted that actual revenue was lower than the headline trading volume would imply because some brokers temporarily waived online brokerage fees through promotional campaigns.
That distinction is important when comparing brokers. A displayed commission rate is only one component of the cost model. The effective burden also depends on whether the broker applies temporary discounts, how long they last, and whether the platform clearly separates trading, clearing and settlement charges in its order ticket or statement.
Regulatory changes alter the operating conditions
Financial authorities introduced complementary measures after criticism that single-stock leverage was intensifying market volatility. From July 31, the basic deposit requirement was raised to ₩30 million in cash only. The measures also included individual investment limits of around 20 percent of total investment amounts, pre-trade education and stronger obligations for securities firms to manage tracking-error rates.
For a platform review, these changes create several concrete test points. The account-opening workflow should identify the cash-only deposit requirement before an order is submitted. The risk module should display applicable investment limits. The product page should provide the education and tracking-error information required for the instrument, rather than forcing the trader to locate it in a separate disclosure area.
Execution quality is also harder to assess when turnover is compressed into volatile sessions. A broker may advertise low online commissions, but that does not establish acceptable order routing or stable platform behaviour during concentrated demand. Traders should examine the complete confirmation screen, the timestamp and price of fills, and the post-trade statement. The evidence here concerns revenue totals, not comparative execution quality between brokers.
The broader fee signal
SBS’s figures sit within a wider revenue trend. Finance BigGo reported that nine major Korean brokerages generated ₩943.2 billion in overseas stock fees during the second quarter, up 60.7 percent from ₩586.8 billion in the first quarter. The same group produced ₩1.5 trillion in overseas stock fees for the first half.
The report linked the increase to higher turnover even as retail investors became net sellers of overseas equities. Combined US-market turnover rose from $149.2 billion in the first quarter to $170.5 billion in the second. The data points to a basic brokerage economics issue: net buying or selling is less important to fee revenue than the number and size of transactions.
That is the practical takeaway for platform comparisons. A low headline commission does not make an active strategy cheap if turnover rises, discounts expire or additional exchange-related charges are poorly disclosed. The same principle applies when evaluating event-driven interfaces, whether they track leveraged equities or esports results and schedules: the dashboard shows activity, not the accumulated cost of acting on it.
The binary verdict is clear: the fee systems were operationally stable enough to process substantial turnover, but the available evidence does not show that they were cost-efficient for traders. Before using single-stock leverage, verify the full fee stack, cash requirement and trading limits.