Taihan Fiberoptics
| Market cap | ₩2.8T |
| PE ratio | – |
| Forward PE | – |
| PB ratio | 25.09 |
| EPS | −₩166 |
| Dividend (yield) | – |
| Analysts (1–5) | – |
| Price target | – |
| Volume | 15,623,204 |
| Trading value | ₩292.9B |
| Day’s range | ₩17,840 – ₩19,870 |
| 52-week range | ₩1,219 – ₩31,500 |
| Foreign ownership KR | 4.92% |
| Foreign net buy (Oct 6) KR | +1,736,906 sh |
| Book value / share | ₩715 |
| Founded | 1974 |
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 6 | ₩18,530 | +1,736,906 | +39,988 | −1,778,664 | 4.92% |
| Oct 2 | ₩17,800 | +502,949 | −55,580 | −482,871 | 3.81% |
| Oct 1 | ₩17,000 | +43,736 | −84,813 | +38,064 | 3.50% |
| Sep 30 | ₩16,680 | −1,036,987 | +9,297 | +1,037,784 | 3.38% |
| Sep 29 | ₩16,600 | −478,304 | −77,120 | +539,764 | 4.05% |
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 | ₩180.3B | ₩152.7B | ₩139.4B | ₩203.5B |
| Operating income | −₩23.2B | −₩29.7B | −₩21.4B | ₩5.8B |
| Net income | −₩29.5B | −₩56.0B | −₩28.0B | ₩4.3B |
| Operating margin | −12.88% | −19.45% | −15.35% | 2.85% |
| Return on equity | −32.45% | −95.92% | −52.05% | 5.10% |
| Debt-to-equity | 208.86% | 413.54% | 228.60% | – |
| EPS | −₩352 | −₩669 | −₩242 | ₩25 |
| Dividend per share | – | – | – | – |
Peers
| Hanwha Vision 489790 | ₩49,400 | −3.70% |
| Rfhic 218410 | ₩58,900 | −5.61% |
| KMW 032500 | ₩20,000 | −4.31% |
| Intellian Technologies 189300 | ₩68,500 | −7.93% |
| Solid 050890 | ₩10,100 | −4.54% |
| Jahwa Electronics 033240 | ₩27,450 | −2.83% |
About
Taihan Fiberoptics makes optical fiber and optical cable and is the only Korean company that produces both in one integrated process. It has sales units in the Americas and Europe and a telecommunications construction subsidiary, and acquired INCAB AMERICA LLC in 2026. Founded in 1974, it listed on the KOSDAQ in 1994.
Taihan Fiberoptics Co., Ltd. is listed on the KOSDAQ market of the Korea Exchange under the ticker 010170. Industry: Electrical equipment.
Taihan Fiberoptics 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 7, 2026; investor flows as of Oct 6, 2026. Delayed data, not investment advice.