Kostecsys코스텍시스
355150 · KOSDAQ · ₩355150 · 코스텍시스
- Market cap
- ₩116B
- Enterprise value
- ₩138B
- P/E
- 55.2×
- P/B
- 4.0×
- Dividend yield
- 0.0%
- ROE
- 7.2%
- Net margin
- 10.8%
Trailing 12 months from filed financial statements, as of H1 2026. Dividend yield: the 2025 dividend per share from the annual report ÷ today's price.
52-week range−76.7% from the high
₩10,890Today: ₩14,580 – ₩16,200₩64,100
Returns
- 1W−10.0%
- 1M−29.9%
- 3M+4.1%
- 6M−63.8%
- YTD+10.7%
- 1Y+10.7%
- Volume today
- 117,291
- 0.9× the 20-day average
- Traded today
- ₩1.8B
- Listed shares
- 7,797,350
- EPS (12 months)
- ₩271
- Earnings yield 1.8%
Upcoming dates
Full calendar →🎁 Gift this stock
Send a friend ₩100,000 of paper money in this stock. They get it when they join.
Signals
Quiet- BuzzQuietBuzz 37 of 100 (50 is a normal day for this stock).
- MomentumWeak-27.1% over the last month; the price is below its 20-day average.
Signals describe activity, not recommendations. Not financial advice.
Kostecsys stock overview
Kostecsys (코스텍시스, KRX: 355150) is listed on KOSDAQ, in the Semiconductors sector. Kostec, a Korean semiconductor packaging company, develops and produces heat-management materials and structural components for semiconductor packages. Its shares closed at ₩14,940 on Oct 27, 2026, down 2.16% on the day, giving it a market value of ₩116B.
Key facts
- Market cap
- ₩116B
- Sector
- Semiconductors
- Latest price change
- −2.16%
- As of
- Oct 27, 2026
- Main business
- Kostec, a Korean semiconductor packaging company, develops and produces heat-management materials and structural components for semiconductor packages.
Quick answers about Kostecsys
- What does Kostecsys do?
- Kostec, a Korean semiconductor packaging company, develops and produces heat-management materials and structural components for semiconductor packages. Its KCMC copper-molybdenum composite platform supports RF communication packages, power semiconductor spacers and baseplates, and laser and optical semiconductor packages. Its main customers are global semiconductor and equipment companies, and much of its sales come from overseas markets.
- What is the market cap of Kostecsys?
- The market capitalisation of Kostecsys was ₩116B at the close on Oct 27, 2026.
- Who are the largest shareholders of Kostecsys?
- According to the latest official filings, the largest reported holders are Han Gyu-jin (42.12%, as of Apr 22, 2025); Han Tae-sung (26.93%, as of Apr 22, 2025); MORGANSTANLEY&COINTLPLC (6.24%, as of May 28, 2026).
- When is the next earnings report from Kostecsys?
- Korean companies rarely announce results dates in advance. Based on when Kostecsys filed the same report in past years, its next 3q results is expected around Nov 14, 2026.
- Does the National Pension Service own Kostecsys?
- Yes. The National Pension Service held 0.44% of Kostecsys shares as of Dec 31, 2025.
Company profile
Kostec, a Korean semiconductor packaging company, develops and produces heat-management materials and structural components for semiconductor packages. Its KCMC copper-molybdenum composite platform supports RF communication packages, power semiconductor spacers and baseplates, and laser and optical semiconductor packages. Its main customers are global semiconductor and equipment companies, and much of its sales come from overseas markets.
Written by AI from the company's latest annual report.
- Korean name
- 코스텍시스
- Sector
- Semiconductors
- CEO
- 한규진
- Founded
- Apr 2020
- Listed
- Sep 2020
- Listed shares
- 7,797,350
- Fiscal year ends
- Month 12
- Website
- www.kostec.net
Similar companies
- SK hynix000660 · ₩980T₩1,341,000+5.18%
- DB HiTek000990 · ₩4.1T₩94,800+1.83%
- Fadu440110 · ₩2.4T₩48,000+7.14%
- Hana Micron067310 · ₩2.4T₩35,500+5.34%
- Jeju Semiconductor080220 · ₩2.2T₩63,900+4.24%
- SFA Semicon036540 · ₩1.4T₩8,720+7.26%
- Hana Materials166090 · ₩1T₩50,800+3.36%
- HD Hyundai Energy Solutions322000 · ₩944B₩84,300−12.46%
Recent filings
See all- Investor relations (IR) eventOct 6, 2026
- Half-year report (Jun 2026)Aug 14, 2026
- Preliminary earningsJul 28, 2026
- Investor relations (IR) eventJun 12, 2026
- 5%+ holding reportMay 28, 2026
Titles in Korean until English translations are added.
Also known as: Kostecsys / 코스텍시스 / 355150 / KRX:355150
Source: KRX statistical information