FilingsTodayKorea Exchange alerts, halts and designations
Updated 2026-10-31
The Korea Exchange (KRX) attaches labels to listed stocks when trading looks abnormal or when a company has a problem that could lead to delisting. These labels appear in brokers' apps next to the stock name and in exchange notices on DART and KIND, the exchange's disclosure site. They are not opinions on the company's value, but they change how the stock can be traded and they say a lot about risk.
It helps to separate two families: market alerts, which respond to price and trading patterns, and company-level designations, which respond to the company's financial or disclosure problems.
Market alerts (시장경보)
The exchange's market surveillance arm uses three levels, each stricter than the last.
| Level | Korean term | Typical trigger | Main effect |
|---|---|---|---|
| Investment caution | 투자주의종목 | A sharp short-term price rise, heavy trading by a few accounts, or unusual activity spread through social media | A notice only, usually for one day |
| Investment warning | 투자경고종목 | A price rise that continues over a longer window, measured against the market index | Margin (credit) purchases are not allowed and the stock cannot be used as collateral; a further rise can bring a one-day trading halt |
| Investment risk | 투자위험종목 | Prices keep rising after a warning designation | A trading halt on designation, plus the warning-level restrictions |
Warning and risk designations are reviewed after a set number of trading days and are lifted if the price has cooled. The exact triggers are set in the exchange's detailed rules and change from time to time. In late 2025 and 2026, after very large companies were labelled during a strong market, the exchange revised the warning rules, including excluding the largest stocks by market value and easing the cash deposit requirement. Check the current KRX notice before relying on any specific threshold.
There is also a separate short-term overheating label (단기과열종목). For a few days such a stock trades only in single-price auctions at set intervals instead of continuously.
Administrative issues (관리종목)
An administrative issue designation is a formal warning that a company is close to meeting a delisting requirement. Common reasons include:
- A non-clean audit opinion of certain kinds (see the audit opinion guide).
- Capital impairment, where losses have eaten into share capital. Impairment of 50% or more at year-end is a standard trigger; full impairment is a delisting reason.
- Revenue or market value below the exchange's minimums. These minimums are being raised in stages from 2026 under the government's 2025 delisting reform.
- Very low trading volume or too few minority shareholders.
- Failure to file the annual or half-year report on time.
- Accumulated penalty points for unfaithful disclosure (see below).
Designated stocks may face restrictions such as no margin trading, and many institutional investors cannot hold them. If the problem is not fixed by the next measurement point, the reason can become a delisting reason.
Delisting review
Korea has two kinds of delisting process:
- Formal (quantitative) delisting: the company meets a clear test, such as a disclaimer of opinion or full capital impairment. Some formal reasons allow an objection and an improvement period.
- Substantive review (상장적격성 실질심사): a committee judges whether the company is still fit to be listed, for example after embezzlement by management, accounting fraud or repeated disclosure violations. The committee can delist, keep the listing, or grant an improvement period.
The 2025 reform shortened the maximum improvement periods, to two years on KOSPI and one and a half years on KOSDAQ, and allowed formal and substantive reviews to run at the same time. Shares are usually halted throughout a review, which can last many months.
Trading halts
A trading halt (매매거래정지) stops trading in one stock. Common reasons:
- A pending announcement of important news, such as a merger, until the filing is made.
- An exchange inquiry (조회공시) about a rumour or report, when the company has not yet answered.
- A delisting reason, or the start of a substantive review.
- Unfaithful disclosure designation with a high penalty.
- A market alert at the warning or risk level.
Each halt and resumption is published as an exchange notice; this site lists them on the market actions page.
Unfaithful disclosure (불성실공시법인)
When a company files late, fails to file, or reverses an earlier announcement (for example cancelling a contract or a share issue), the exchange first gives notice that it intends to designate the company (지정예고). After a hearing it may designate the company and impose penalty points (벌점), and possibly a fine. Points stay on the record for one year.
Worked example
A hypothetical KOSPI company is designated for withdrawing a supply contract it had announced, and receives 8 penalty points. Seven months later it fails to report a lawsuit on time and receives another 9 points. Its total within one year is 17 points. On KOSPI, 15 or more points within a year is a reason for administrative issue designation; on KOSDAQ it leads to a substantive listing review. A single designation with a high score can also bring a one-day trading halt.
Comparison with the US
US exchanges send deficiency notices when a company falls below listing standards, such as a share price under US$1 on Nasdaq, and the company announces them in an 8-K. They do not label stocks for fast price rises the way KRX does. Korea's alerts are more visible to retail traders and change trading conditions directly.