Korea listed its first single-stock leverage funds on 27 May 2026, tracking twice the daily move in Samsung Electronics and SK hynix. Eight weeks later the government suspended new listings of the whole class, banned advertising and tripled the deposit required to buy one. We read the launch notice against the July package and set out what actually changed in between.
Last verified: 6 August 2026. Built from the Financial Services Commission’s 16 July package and its own pre-launch risk notice, then the Korea Policy Briefing releases carrying the listing detail and the early implementation date. The dates and the measures are settled and will not move. The market data behind them stops on 15 July, and the Commission has still not announced an account-level holding cap.
Editor’s opinion
The information did not change in eight weeks. Only the exposure did.
Our view is that the regulator learned nothing between May and July that it had not already written down. The risk notice published the day before listing described every mechanism that later caused the damage, in plain language, with worked examples. What arrived afterwards was scale.
Against that, scale is a genuine regulatory fact and the numbers are not small. The class went from 4.4 trillion won at listing to 11.9 trillion won in seven weeks. Over the same stretch Samsung Electronics and SK hynix rose from 49 to 52 per cent of the KOSPI’s market value, having been 34 per cent at the end of 2025. Their annualised daily volatility ran at 96 and 113 per cent. A supervisor watching a doubled product grow 2.7 times on two stocks that are half the index is not looking at the market it approved. The view survives because that concentration was visible before the launch, not after it. It survives too because the deposit the Commission chose in May — ten million won, of which securities could supply seven — is the same number it tripled and made cash-only ten weeks later. An FSC document identifying a risk that genuinely did not exist on 27 May would change our mind.
Andrew Lee. This section argues a view rather than establishing a fact. It is not a forecast and not a recommendation, and the material it draws on is listed in the sources below.
What Korea listed on 27 May
The Korea Exchange admitted sixteen exchange-traded funds and two exchange-traded notes whose value moves at twice the daily return of one share. The underlying shares were Samsung Electronics and SK hynix. Eight asset managers issued the funds, fourteen of them tracking the stock upward and two tracking it downward, and Mirae Asset issued both notes. These were the first products of their kind admitted to a Korean exchange.
Entry was not free. A new buyer had to complete two hours of mandatory pre-trade education and hold a basic deposit of ten million won, and that deposit could be met up to 70 per cent with shares, bonds or other funds rather than cash. Between late April and 21 May, some 100,000 people applied for the advanced module and 93,000 finished it, at roughly 3,880 a day. Demand was measurable before a single unit had traded.
The argument the Commission used carries its own test. It holds only if the domestic version is in fact the safer one, which makes the deposit level and the education requirement load-bearing rather than decorative. It is the same reasoning Korean regulators use elsewhere — that better rules attract capital instead of repelling it — and we examined how well that has held up in the evidence on the Korea discount narrowing.
Asymmetry here means a gap between two rule sets, not a gap between two prices. A Korean investor buying a Hong Kong-listed leveraged product on Samsung Electronics faced no Korean deposit and no Korean pre-trade education, because neither attaches to a foreign-listed security. The July package closed the gap from the other end, by extending the domestic requirements to overseas purchases.
What the first seven weeks did
The product worked, in the narrow sense that people bought it. Combined market value of the sixteen funds was 4.4 trillion won on the day they listed. By 15 July it stood at 11.9 trillion won, and turnover across the class had risen from 10.4 trillion won on the opening day to 13.0 trillion won.
Five claims about the launch and what followed
Who stands behind each, as at 6 August 2026
| Claim | Attributed to | Status |
|---|---|---|
| 16 funds and 2 notes listed on 27 May | FSC risk notice, 26 May | On the record |
| Class value 4.4tn won at listing, 11.9tn on 15 July | FSC package, 16 July | On the record |
| Market-wide margin loan balance | Named to the 16 July package; absent from its published text | Not confirmed — figure withheld |
| Forced liquidations up more than sevenfold | Supervisory Service monitoring | Announced, no address held |
| Index drawdown, fund outflows, accounts liquidated | Reporting, no named official source | Not confirmed — figures withheld |
Only the first two rows rest on a document you can open and read. We withdrew the third: our draft named the 16 July package, the figure is not in its published text, and we could not open the annex. The fourth the Supervisory Service announced, but we hold no address for it. The fifth exists only in reporting attributed to nobody. We print numbers for none of the last three.
Margin debt, and what it does when prices fall
Leverage inside the fund is only one layer. The other sits in the account that holds it.
The Financial Supervisory Service, watching the weeks after the listing, reported a net 8.9 trillion won of individual buying in the first month, at a turnover rate of 105.3 per cent. Forced liquidations rose more than sevenfold. Its ratio of executed forced sales to unsettled margin balances set a fresh high for the year in three consecutive months, and a single session in early July produced the largest daily liquidation of that month.
The funds did not do all of that on their own. If you want the earlier reading on the same two stocks, our note on why buy Samsung and SK hynix now sets out the mechanism at the 37.3 trillion won the Supervisory Service reported.
A forced liquidation is not a decision. When the collateral behind a margin loan drops below the broker’s maintenance ratio and the investor does not top it up, the broker sells at the opening auction of the next session, at whatever price that auction produces. Neither the timing nor the price belongs to the investor.
The 16 July package, and the date that moved
On 16 July the Deputy Prime Minister for the economy chaired a market review with the Commission, the Supervisory Service, the Bank of Korea and the Exchange. The package that came out of it did two things.
It stopped the class growing: no new single-stock listings of any kind, inverse and covered-call variants included, until the market settles, plus an immediate ban on advertising and promotional marketing by brokers and asset managers.
Then it raised the price of entry. Mandatory education went from two hours to three with a pass mark attached, and the basic deposit went from ten million won, 70 per cent of which could be securities, to thirty million won in cash alone. Brokers may no longer relax that deposit for experienced clients. The same requirement now attaches to overseas-listed equivalents, which is where the demand would otherwise have gone. The Commission had set the deposit change for around 5 August, then brought it forward to 31 July.
| Date | Event |
|---|---|
| 26 May 2026 | FSC publishes a risk notice: up to 60 per cent loss in a single day |
| 27 May 2026 | 16 funds and 2 notes list; combined value 4.4 trillion won |
| 15 July 2026 | Combined value 11.9 trillion won; the two stocks are 52 per cent of the KOSPI |
| 16 July 2026 | Package: new listings suspended, advertising banned, deposit tripled |
| 31 July 2026 | The thirty million won cash deposit takes effect, ahead of schedule |
| November 2026 | Trading unit due to move from 1 unit to 20, provisionally |
What is not settled
Three parts of this remain open, and the first is the one most likely to affect you.
The Commission has discussed an account-level cap without adopting one. It said it would consider further measures with experts and investors if the market did not settle, and its chairman has spoken publicly about limiting how much of an account may sit in these products. It has fixed no percentage and named no date.
The second is the meaning of settled. Nothing in the package states what the Exchange must observe before new listings resume, which makes a temporary suspension an indefinite one until somebody says otherwise.
The third is the evidence you can inspect. The Supervisory Service announced its monitoring figures rather than publishing them at an address we can hand you, and the more dramatic numbers in circulation — index drawdown, fund outflows, the count of accounts liquidated — carry no named official source at all. We have left those out rather than lend them our formatting.
Korea did not discover anything in eight weeks that it had not written down on 26 May. What it discovered was how many people would buy the product anyway.
Sources
We take facts from these and write our own sentences. Where a figure originates in a company filing we say so, and where it originates in a research house estimate we name the house. We link to a document only where we hold the exact address for it; a link to a publisher’s front page would not get you to the source, so where we do not have the direct address we give you enough to find it.
Filings and official documents
- Financial Services Commission and related agencies, Joint supplementary measures for single-stock leverage products (ETF and ETN), 16 July 2026. Source of the class market value and turnover, the volatility and index-weight figures, and every measure in the package.
- Financial Services Commission, Guidance on the early implementation of the strengthened basic deposit for single-stock leverage products, effective 31 July 2026.
- Financial Services Commission, Enforcement decree amendment resolving the regulatory asymmetry between domestic and overseas-listed ETFs. Source of the stated rationale for permitting the product.
- Korea Policy Briefing, Single-stock leverage ETFs launch on the 27th — regulator urges particular caution, 26 May 2026. Source of the issuer count, the product split, the 60 per cent single-day figure, the negative compounding example and the pre-trade education numbers.
- Korea Policy Briefing, Basic deposit for single-stock leverage products rises to 30 million won from the 31st — early implementation, July 2026.
Statements we hold no direct address for
- Financial Supervisory Service, market situation monitoring statements, June and July 2026. Source of the net purchase and turnover figures, the forced-liquidation ratios and the sevenfold increase. These were announced by the agency, but we hold only the front page of fss.or.kr and no address that would land you on the release itself, so they are cited without a link. The heavier figures circulating in the same period — a KOSPI drawdown from its June high, a fall in leveraged fund net assets, and an estimated number of investors liquidated — are attributed to no named official source and we have not reproduced them.
Corrections
None yet. If you can point to a primary document that contradicts anything above, we will correct it and say what changed.
Disclosure. The author holds no position in Samsung Electronics, SK hynix, or any asset manager or broker named above, and no position in any single-stock leverage product, as of the date of publication. This article is general information and analysis about a financial regulation and the market data behind it. It is not investment advice, not a recommendation to buy or sell any security, and not a forecast of any price or index level. The section headed Editor’s opinion is comment: it argues a view, and we fence it off from the sourced material for that reason. We have not tailored anything here to your circumstances, and only a qualified adviser in your jurisdiction can do that. We are not registered as an investment adviser in any jurisdiction, and this site has no commercial relationship with any company, exchange or research provider named above. See the Editorial & Sourcing Policy and Disclaimer.