Seoul Viosys
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
Seoul Viosys makes light-emitting semiconductor components, tiny chips and modules that produce ultraviolet, visible, and infrared light for uses ranging from water and air sterilisation to display backlighting, automotive lighting, and precision sensing.
Its products supply manufacturers across industries worldwide, from consumer electronics and medical devices to data-centre optical communications. Listed on KOSDAQ, Korea's tech-focused stock exchange, the company holds a broad portfolio of optical semiconductor technologies protected by thousands of patents, spanning products from individual chips through to finished modules.
Summary is AI-generated and may contain errors · figures from DART filings
The company operates six global R&D centres and three consolidated subsidiaries located in the United States, Vietnam, and China, which handle customised production and global supply.
Seoul Viosys in five facts
What does Seoul Viosys do?
Seoul Viosys makes light-emitting semiconductor components, tiny chips and modules that produce ultraviolet, visible, and infrared light for uses ranging from water and air sterilisation to display backlighting, automotive lighting, and precision sensing.
Where is Seoul Viosys listed and in which sector?
Seoul Viosys (Korean name: 서울바이오시스) trades under KRX code 092190 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Information Technology sector, Semiconductors.
How large is Seoul Viosys?
Its market capitalisation was US$239.2M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were Seoul Viosys's latest annual revenue and operating profit?
For fiscal year 2025, Seoul Viosys reported revenue of US$576.5M, operating profit of US$170.4K and a net loss of US$10.3M, per its annual report on DART (data retrieved from DART on 2026-06-04). Revenue was up 9.2% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-06-04
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, converted from won at 1 USD ≈ ₩1,325 (2026-10-21 close)
- Company data updated
- 2026-10-21
- Company summary
- AI-generated from filings; may contain errors. Information only, not investment advice.
- Operating results (consolidated) (preliminary) (fair disclosure)
Seoul Viosys filed provisional (unaudited) consolidated results for Q3 2026: revenue of US$170M (+21.9% year on year).
Earnings · Oct 14 - [Amended] Operating results (consolidated) (preliminary) (fair disclosure)
Seoul Viosys updated its previously filed provisional (unaudited) consolidated results for Q2 2026: revenue of US$151M (+13.8% year on year), operating profit of US$7.19M (from a loss a year earlier) and net income of US$5.76M (from a loss a year earlier).
Earnings · Aug 10 · 2 versions - [Amended] Operating results (consolidated) (preliminary) (fair disclosure)
Seoul Viosys updated its previously filed provisional (unaudited) consolidated results for Q1 2026: revenue of US$127M (+11.9% year on year), operating profit of US$7.03M (from a loss a year earlier) and net income of US$7M (from a loss a year earlier).
Earnings · May 11 · 2 versions - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
Seoul Viosys reported consolidated results for FY2025: revenue of US$525M (+9.2% year on year), operating profit of US$2.59M (+8.1% year on year) and a net loss of US$8.07M (from a profit a year earlier).
Earnings · Feb 11 - [Amended] Operating results (consolidated) (preliminary) (fair disclosure)
Seoul Viosys updated its previously filed provisional (unaudited) consolidated results for Q4 2025: revenue of US$151M (+23.2% year on year), operating profit of US$12.8M (from a loss a year earlier) and net income of US$9.17M (from a loss a year earlier).
Earnings · Feb 11 · 2 versions