YC
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
YC makes equipment used to test semiconductor chips during manufacturing, and also produces the multilayer ceramic substrates that sit inside probe cards, the components that make direct electrical contact with silicon wafers during testing.
Its customers are semiconductor manufacturers that need to verify chip quality before the chips leave the production line. The company operates across two distinct product lines: testing equipment and the ceramic substrate components that support that testing process. It is listed on KOSDAQ, South Korea's tech-focused small-cap exchange.
Summary is AI-generated and may contain errors · figures from DART filings
YC in five facts
What does YC do?
YC makes equipment used to test semiconductor chips during manufacturing, and also produces the multilayer ceramic substrates that sit inside probe cards, the components that make direct electrical contact with silicon wafers during testing.
Where is YC listed and in which sector?
YC (Korean name: 와이씨) trades under KRX code 232140 on KOSDAQ, the Korea Exchange's board for smaller and growth companies. It is classified in the Industrials sector, Machinery.
How large is YC?
Its market capitalisation was US$855.2M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were YC's latest annual revenue and operating profit?
For fiscal year 2025, YC reported revenue of US$205.8M, operating profit of US$12.8M and net income of US$21.9M, per its annual report on DART (data retrieved from DART on 2026-09-18). Revenue was up 29.1% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-18
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, 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] Supply contract signed
YC updated a previously disclosed supply contract with Samsung Electronics, now worth US$29.8M, about 19.08% of its recent annual revenue, running through Dec 2026.
Supply contract · Sep 29 · 3 versions - Investor relations (IR) meetingSep 8
- Supply contract signed
YC disclosed a supply contract with Samsung Electronics, worth US$117M, about 59.48% of its recent annual revenue, running through Jun 2027.
Supply contract · Aug 27 - [Amended] Supply contract signed
YC updated a previously disclosed supply contract with Samsung Electronics, now worth US$25.1M, about 18.34% of its recent annual revenue, running through Sep 2026.
Supply contract · Jun 29 - Supply contract signed
YC disclosed a supply contract with Samsung Electronics, worth US$61.5M, about 34.11% of its recent annual revenue, running through Nov 2026.
Supply contract · Jun 1 - Supply contract signed
YC disclosed a supply contract with Samsung Electronics, worth US$28.5M, about 15.46% of its recent annual revenue, running through Dec 2026.
Supply contract · Apr 13 - [Amended] Supply contract signed
YC updated a previously disclosed supply contract with Samsung Electronics, now worth US$25.7M, about 18.34% of its recent annual revenue, running through Jun 2026.
Supply contract · Mar 27 - [Amended] Supply contract signed
YC updated a previously disclosed supply contract with Samsung Electronics, now worth US$19.5M, about 13.94% of its recent annual revenue, running through Jun 2026.
Supply contract · Mar 27 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
YC reported consolidated results for FY2025: revenue of US$189M (+29.1% year on year), operating profit of US$11.8M (+60.3% year on year) and net income of US$20.1M (+124.2% year on year).
Earnings · Feb 24