Jeju Semiconductor (KRX: 080220)
Who is buying Jeju Semiconductor?
Between Sep 15, 2026 and Oct 16, 2026 (20 trading sessions), foreign investors net bought ₩23.0bn ($17M) of Jeju Semiconductor, the 22nd largest foreign net purchase among 1828 KOSDAQ stocks. Institutions net bought ₩7.6bn ($6M) and retail investors net sold ₩33.2bn ($25M) over the same window. Foreigners were net buyers on 14 of the 20 sessions.
Foreign investors hold 0.79% of Jeju Semiconductor's listed shares (KRX ownership data as of Oct 16, 2026), up from 0% twenty sessions earlier and 2.7% a year ago.
The stock closed at ₩68,700 on Oct 16, 2026: -2.55% over 20 sessions, +160.72% year-to-date, +209.46% over one year. The 52-week range is ₩17,480 – ₩138,000.
At ₩68,700 the stock trades at 58.57× trailing earnings (KRX, last completed fiscal year); no analyst consensus is available for a forward P/E.
View chart data as a table
| Date | Close | Foreign net | Institutions | Retail |
|---|---|---|---|---|
| 2026-10-16 | ₩68,700 | ₩-10.3bn | +₩2.9bn | +₩6.4bn |
| 2026-10-15 | ₩63,500 | +₩7.0bn | ₩-8.0bn | +₩1.2bn |
| 2026-10-14 | ₩72,200 | ₩-10.5bn | ₩-2.4bn | +₩10.1bn |
| 2026-10-13 | ₩74,900 | +₩2.3bn | ₩-0.2bn | ₩-2.0bn |
| 2026-10-12 | ₩80,900 | +₩8.5bn | ₩-11.5bn | +₩2.9bn |
| 2026-10-08 | ₩86,400 | +₩0.8bn | +₩3.3bn | ₩-4.1bn |
| 2026-10-07 | ₩84,700 | ₩-18.4bn | ₩-3.5bn | +₩22.7bn |
| 2026-10-06 | ₩93,600 | ₩-21.2bn | +₩2.4bn | +₩17.8bn |
| 2026-10-02 | ₩92,400 | +₩14.0bn | +₩12.8bn | ₩-26.7bn |
| 2026-10-01 | ₩88,200 | +₩31.2bn | +₩21.8bn | ₩-51.8bn |
| 2026-09-30 | ₩78,300 | +₩2.4bn | +₩1.3bn | ₩-2.9bn |
| 2026-09-29 | ₩77,000 | +₩0.2bn | +₩0.3bn | ₩-0.6bn |
| 2026-09-28 | ₩74,600 | +₩0.3bn | ₩-1.6bn | +₩1.1bn |
| 2026-09-23 | ₩77,600 | +₩3.8bn | ₩-0.8bn | ₩-3.7bn |
| 2026-09-22 | ₩75,600 | ₩-0.5bn | ₩-1.7bn | +₩2.6bn |
| 2026-09-21 | ₩75,200 | ₩-1.4bn | ₩-1.6bn | +₩2.7bn |
| 2026-09-18 | ₩73,400 | +₩5.1bn | ₩-0.4bn | ₩-4.4bn |
| 2026-09-17 | ₩72,500 | +₩6.4bn | ₩-2.2bn | ₩-4.3bn |
| 2026-09-16 | ₩71,500 | +₩2.5bn | ₩-0.6bn | ₩-1.8bn |
| 2026-09-15 | ₩68,800 | +₩0.9bn | ₩-2.7bn | +₩1.6bn |
| 2026-09-14 | ₩70,500 | ₩-7.7bn | ₩-1.8bn | +₩9.6bn |
| 2026-09-11 | ₩75,200 | ₩-14.5bn | +₩3.3bn | +₩11.3bn |
| 2026-09-10 | ₩78,800 | ₩-44.3bn | +₩81.6bn | ₩-36.3bn |
| 2026-09-09 | ₩75,000 | +₩10.4bn | +₩0.2bn | ₩-10.6bn |
| 2026-09-08 | ₩73,000 | +₩10.3bn | ₩-3.9bn | ₩-6.8bn |
| 2026-09-07 | ₩73,800 | +₩0.9bn | ₩-2.4bn | +₩0.7bn |
| 2026-09-04 | ₩71,800 | +₩12.5bn | +₩0.0bn | ₩-12.2bn |
| 2026-09-03 | ₩68,800 | +₩4.3bn | ₩-6.2bn | +₩1.7bn |
| 2026-09-02 | ₩72,600 | +₩5.2bn | ₩-8.7bn | +₩4.4bn |
| 2026-09-01 | ₩77,400 | ₩-10.2bn | ₩-5.6bn | +₩15.8bn |
| 2026-08-31 | ₩78,200 | +₩12.2bn | ₩-2.8bn | ₩-9.2bn |
| 2026-08-28 | ₩76,700 | ₩-2.1bn | ₩-0.0bn | +₩2.2bn |
| 2026-08-27 | ₩77,700 | +₩5.3bn | ₩-1.8bn | ₩-3.5bn |
| 2026-08-26 | ₩76,100 | +₩0.7bn | ₩-2.2bn | +₩1.2bn |
| 2026-08-25 | ₩76,900 | +₩10.8bn | +₩0.1bn | ₩-10.7bn |
| 2026-08-24 | ₩72,800 | +₩0.3bn | ₩-0.7bn | +₩0.4bn |
| 2026-08-21 | ₩73,500 | +₩3.0bn | ₩-3.1bn | +₩0.0bn |
| 2026-08-20 | ₩76,500 | +₩2.1bn | +₩1.8bn | ₩-4.1bn |
| 2026-08-19 | ₩73,600 | +₩7.3bn | ₩-2.8bn | ₩-4.6bn |
| 2026-08-18 | ₩75,800 | +₩16.8bn | ₩-16.1bn | +₩0.5bn |
| 2026-08-14 | ₩81,500 | ₩-33.1bn | ₩-29.4bn | +₩64.3bn |
| 2026-08-13 | ₩88,300 | +₩3.1bn | ₩-8.5bn | +₩5.0bn |
| 2026-08-12 | ₩87,000 | ₩-18.0bn | ₩-2.1bn | +₩18.7bn |
| 2026-08-11 | ₩90,400 | ₩-22.8bn | +₩17.6bn | +₩4.0bn |
| 2026-08-10 | ₩87,700 | ₩-1.5bn | +₩14.3bn | ₩-10.9bn |
| 2026-08-07 | ₩75,400 | ₩-19.7bn | ₩-2.4bn | +₩21.0bn |
| 2026-08-06 | ₩74,300 | ₩-10.8bn | +₩0.4bn | +₩10.2bn |
| 2026-08-05 | ₩75,500 | ₩-9.3bn | ₩-0.9bn | +₩9.4bn |
| 2026-08-04 | ₩70,000 | ₩-11.1bn | +₩7.4bn | +₩3.4bn |
| 2026-08-03 | ₩65,100 | ₩-18.2bn | +₩2.8bn | +₩14.5bn |
| 2026-07-31 | ₩65,100 | ₩-0.5bn | +₩6.6bn | ₩-8.1bn |
| 2026-07-30 | ₩50,100 | +₩10.4bn | ₩-2.2bn | ₩-7.9bn |
| 2026-07-29 | ₩55,100 | +₩32.1bn | ₩-2.3bn | ₩-30.6bn |
| 2026-07-28 | ₩62,400 | +₩19.6bn | ₩-6.5bn | ₩-13.0bn |
| 2026-07-27 | ₩74,000 | +₩4.4bn | +₩0.2bn | ₩-5.0bn |
| 2026-07-24 | ₩70,300 | ₩-23.7bn | ₩-6.0bn | +₩29.2bn |
| 2026-07-23 | ₩80,900 | +₩9.3bn | +₩4.0bn | ₩-13.9bn |
| 2026-07-22 | ₩75,000 | ₩-8.6bn | ₩-4.0bn | +₩12.8bn |
| 2026-07-21 | ₩78,300 | ₩-15.9bn | +₩1.4bn | +₩14.0bn |
| 2026-07-20 | ₩78,000 | ₩-4.2bn | ₩-0.9bn | +₩3.9bn |
| 2026-07-16 | ₩81,900 | ₩-10.4bn | ₩-3.4bn | +₩13.0bn |
Investor flows summary
| Window | Foreign | (USD) | Institutions | Retail |
|---|---|---|---|---|
| 1 day | ₩-10.3bn | $-8M | +₩2.9bn | +₩6.4bn |
| 5 days | ₩-3.1bn | $-2M | ₩-19.2bn | +₩18.7bn |
| 20 days | +₩23.0bn | +$17M | +₩7.6bn | ₩-33.2bn |
Positive = net buying, negative = net selling. Values aggregate the KRX main board and the NXT alternative venue.
Frequently asked questions
Are foreign investors buying Jeju Semiconductor stock?
Over the last 5 sessions foreign investors net sold ₩3.1bn ($2M) of Jeju Semiconductor; over 60 sessions they net sold ₩72.0bn ($54M); since Jan 1, 2026 they net sold ₩233.9bn ($174M). Over 20 sessions the stock is the 22nd largest foreign net purchase among 1828 KOSDAQ stocks.
How much of Jeju Semiconductor do foreign investors own?
Foreign investors own 0.79% of Jeju Semiconductor's shares as of Oct 16, 2026, versus 2.7% one year earlier. The figure is KRX's daily foreign holdings divided by listed shares, and it reflects trades settled through the previous session.
Who is on the other side — institutions or retail investors?
Over 20 sessions institutions net bought ₩7.6bn ($6M) and retail investors net sold ₩33.2bn ($25M) of Jeju Semiconductor. Retail investors have been supplying the shares that foreigners and institutions are buying.
Is Jeju Semiconductor listed on KOSPI or KOSDAQ?
Jeju Semiconductor (제주반도체) trades on KOSDAQ under KRX code 080220 in the Semiconductors group, with a market capitalization of ₩2T ($1.8B). Daily net flows by investor type are published by KRX after each session and combine the KRX main board with the NXT venue.
Annual financials
| Fiscal year | Revenue | YoY | Operating profit | Net income |
|---|---|---|---|---|
| 2023 | ₩146bn ($108M) | – | ₩18bn ($13M) | ₩17bn ($13M) |
| 2024 | ₩162bn ($121M) | +11.30% | ₩10bn ($7M) | ₩19bn ($14M) |
| 2025 | ₩302bn ($225M) | +86.20% | ₩36bn ($27M) | ₩39bn ($29M) |
Consolidated (K-IFRS) where available, from DART regulatory filings. USD figures converted at the current rate (₩1345.9/$) for reference only.