Jeju Semiconductor
| Market cap | ₩3.0T |
| PE ratio | 12.90 |
| Forward PE | – |
| PB ratio | 6.51 |
| EPS | ₩6,698 |
| Dividend (yield) | – |
| Analysts (1–5) | – |
| Price target | – |
| Volume | 1,153,224 |
| Trading value | ₩99.7B |
| Day’s range | ₩83,700 – ₩88,500 |
| 52-week range | ₩17,480 – ₩138,000 |
| Foreign ownership KR | 0.36% |
| Foreign net buy (Oct 7) KR | −207,870 sh |
| Book value / share | ₩13,268 |
| Founded | 2000 |
Close (KRW) Foreign ownership, % of shares (right axis)
Foreign, institutional and retail net buying KR data
Shares by trading day; positive means net buying. Korea publishes investor-type flows for every stock — global sites such as Yahoo or StockAnalysis do not show them.
| Date | Close | Foreigners | Institutions | Retail | Foreign ownership |
|---|---|---|---|---|---|
| Oct 7 | ₩84,700 | −207,870 | −40,897 | +259,016 | 0.36% |
| Oct 6 | ₩93,600 | −232,076 | +25,396 | +193,658 | 1.35% |
| Oct 2 | ₩92,400 | +148,500 | +138,201 | −289,570 | 2.14% |
| Oct 1 | ₩88,200 | +377,366 | +255,475 | −621,071 | 1.70% |
| Sep 30 | ₩78,300 | +28,988 | +17,198 | −35,859 | 0.77% |
Financials
Annual, consolidated where available, KRW. Columns ending in E are analyst consensus estimates. Source: company filings (DART) via Naver Finance.
| Item | FY2023 | FY2024 | FY2025 | FY2026E |
|---|---|---|---|---|
| Revenue | ₩145.9B | ₩162.3B | ₩302.2B | – |
| Operating income | ₩17.8B | ₩9.6B | ₩35.9B | – |
| Net income | ₩16.9B | ₩19.4B | ₩39.5B | – |
| Operating margin | 12.23% | 5.90% | 11.87% | – |
| Return on equity | 11.21% | 11.44% | 19.21% | – |
| Debt-to-equity | 25.29% | 22.36% | 47.94% | – |
| EPS | ₩486 | ₩567 | ₩1,147 | – |
| Dividend per share | – | – | – | – |
Peers
| Samsung Electronics 005930 | ₩262,000 | −2.42% |
| SK Hynix 000660 | ₩1,681,000 | −2.44% |
| SK Square 402340 | ₩1,050,000 | −8.06% |
| Hanmi Semiconductor 042700 | ₩267,000 | +0.95% |
| Jusung Engineering 036930 | ₩267,500 | +8.08% |
| Isupetasys 007660 | ₩125,500 | +2.87% |
About
Jeju Semiconductor is a fabless company that designs memory chips for mobile applications and outsources production to specialist foundries. Its main product, NAND MCP, combines its own LPDRAM with NAND flash from other makers and is supplied to a range of industries. Founded in 2000, it listed on the KOSDAQ in 2005.
Jeju Semiconductor Corp. is listed on the KOSDAQ market of the Korea Exchange under the ticker 080220. Industry: Semiconductors & electronic components.
Jeju Semiconductor in our notes
Direct KRX access through a global broker, a US-listed ADR where one exists, or a Korea ETF — compared in our guide.
Data: Korea Exchange regular-session closing prices, volume and day’s range via Daum Finance, checked against a Naver Finance snapshot at the close; investor flows, foreign ownership and ratios via Naver Finance; company information from DART (Financial Supervisory Service). Updated after each Korean market close; ratios as of Oct 8, 2026; investor flows as of Oct 7, 2026. Delayed data, not investment advice.