OptiCore
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
OptiCore makes optical transceivers, components that convert electrical signals into light pulses and back, enabling data to travel across fibre-optic networks, along with optical multiplexing devices that bundle multiple light-wavelength signals onto a single fibre.
Its customers include makers of mobile network base stations, broadband access equipment, and enterprise communications gear. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, the company also operates a separate automation business that supplies platform screen doors for metro and rail stations and equipment for factory production lines.
Summary is AI-generated and may contain errors · figures from DART filings
OptiCore in five facts
What does OptiCore do?
OptiCore makes optical transceivers, components that convert electrical signals into light pulses and back, enabling data to travel across fibre-optic networks, along with optical multiplexing devices that bundle multiple light-wavelength signals onto a single fibre.
Where is OptiCore listed and in which sector?
OptiCore (Korean name: 옵티코어) trades under KRX code 380540 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Information Technology sector, Hardware & Devices.
How large is OptiCore?
Its market capitalisation was US$156M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were OptiCore's latest annual revenue and operating profit?
For fiscal year 2025, OptiCore reported revenue of US$16.2M, an operating loss of US$4.5M and a net loss of US$17M, per its annual report on DART (data retrieved from DART on 2026-06-03). Revenue was down 7.7% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-06-03
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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.
- [Amended] Material event report (decision to redeem own convertible bonds early)Capital raise · Sep 11 · 3 versions
- Results of extraordinary shareholders' meetingSep 10
- Appointment/dismissal/resignation of an independent directorSep 10
- Material event report (decision to redeem own convertible bonds early)
OptiCore decided on August 5, 2026 to acquire before maturity US$3.52M (face value) of its Series 4 convertible bonds for US$3.63M using own funds, purchased from bondholder Korea Investment & Securities (as trustee of the Alpen Route Blind Paradigm Trust No. 1); future disposition (resale or retirement) will be decided later by the board.
Capital raise · Aug 5 - [Amended] Supply contract signed
OptiCore updated a previously disclosed supply contract, now worth US$1.59M, about 10.38% of its recent annual revenue, running through Sep 2026.
Supply contract · Jul 7 · 2 versions - [Amended] Supply contract signed
OptiCore updated a previously disclosed supply contract, now worth US$2.64M, about 17.2% of its recent annual revenue, running through Jul 2026.
Supply contract · Jun 12 - Material event report (decision to redeem own convertible bonds early)Capital raise · May 27
- Material event report (decision to redeem own convertible bonds early)Capital raise · May 8
- [Amended] Supply contract signed
OptiCore updated a previously disclosed supply contract, now worth US$2.72M, about 17.2% of its recent annual revenue, running through Jun 2026.
Supply contract · Apr 30 - Trading suspension period changed (share consolidation/split registration)M&A · Apr 28
- Material event report (decision to redeem own convertible bonds early)Capital raise · Apr 8
- Material event report (decision to redeem own convertible bonds early)Capital raise · Mar 30
- [Amended] Supply contract signed
OptiCore updated a previously disclosed supply contract, now worth US$2.68M, about 17.2% of its recent annual revenue, running through Apr 2026.
Supply contract · Mar 25 - [Amended] Supply contract signed
OptiCore updated a previously disclosed supply contract, now worth US$4.01M, about 25.8% of its recent annual revenue, running through Apr 2026.
Supply contract · Mar 25 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
OptiCore reported consolidated results for FY2025: revenue of US$14.3M (−7.7% year on year), an operating loss of US$3.72M and a net loss of US$14.1M.
Earnings · Mar 16 - [Amended] Supply contract signedSupply contract · Jan 30