Biggest Korean stock gainers this month
Data as of Oct 28, 2026
KOSPI and KOSDAQ companies worth at least ₩100B that rose the most over the past month (about 21 trading days).
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
Updated after each trading day. A list based on data, not a recommendation to buy or sell anything.
Questions people ask
Which Korean stock rose the most this month?
As of Oct 28, 2026, HLB bioStep (278650) rose the most over the past month, up 136.4%, among companies worth at least ₩100B.
Why do some stocks on this list carry a warning?
The Korea Exchange puts alerts such as 투자경고 (investment warning) on stocks that rise abnormally fast. Check the stock's filings before trading.
Source: KRX statistical information