How far can a Korean stock move in one day?

Up to 30% either side of the base price, which is usually the previous close. The band has been plus or minus 30% since June 2015.

Why is the limit sometimes slightly under 30%?

The limit price is rounded to a valid tick size, so the printed limit can be a little narrower than exactly 30%.

Does the 30% band apply on a listing day?

No. On the first day of a new listing the price may range from 60% to 400% of the offer price. Special situations such as delisting liquidation trading also use different rules.

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한국어

Daily price limit

Korean stocks can move at most ±30% from the previous close in a single trading day.
Also known as: Upper limit, lower limit, limit up, limit down

What it is

The Korean market caps how far a stock can move in one day. The highest allowed price is the upper limit (limit up) and the lowest is the lower limit (limit down). Since June 2015 the band is ±30% of the base price, usually the previous close.

How it is set

The base price plus or minus 30% is adjusted to a valid tick, so the actual limit can be slightly less than exactly 30%.

What to keep in mind

When buy orders pile up unfilled at the upper limit, Korean investors call it "limit-up with remaining bids". Different bands apply in special cases such as the first day of a new listing or delisting liquidation trading.

This explanation is general information, not investment advice. Rules reflect September 2026 and may change; check official exchange and broker notices.

Daily price limit: questions

How far can a Korean stock move in one day?: Up to 30% either side of the base price, which is usually the previous close. The band has been plus or minus 30% since June 2015.
Why is the limit sometimes slightly under 30%?: The limit price is rounded to a valid tick size, so the printed limit can be a little narrower than exactly 30%.
Does the 30% band apply on a listing day?: No. On the first day of a new listing the price may range from 60% to 400% of the offer price. Special situations such as delisting liquidation trading also use different rules.