'Contributing to regional construction industry'; IS Dongseo wins Ulsan mayor's commendation
Predicted impact: Low
IS Dongseo아이에스동서
010780 · KOSPI · ₩010780 · 아이에스동서
₩14,170▼ ₩170 (1.19%)End-of-day · Oct 28, 2026 · End-of-day prices.
Price · 1Y −26.01%
- Market cap
- ₩421B
- Enterprise value
- ₩121B
- P/E
- 5.1×
- P/B
- 0.3×
- Dividend yield
- 3.5%
- ROE
- 5.9%
- Net margin
- 7.1%
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−58.9% from the high
₩13,860Today: ₩14,150 – ₩14,390₩34,450
Returns
- 1W−0.8%
- 1M−5.3%
- 3M−16.7%
- 6M−52.1%
- YTD−39.3%
- 1Y−26.0%
- Volume today
- 40,866
- 0.8× the 20-day average
- Traded today
- ₩582M
- Listed shares
- 29,724,668
- EPS (12 months)
- ₩2,757
- Earnings yield 19.5%
AI researchResearch being writtenOur AI is writing a report on this company from filed data, prices and news. Check back soon.
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Signals
Quiet- BuzzQuietBuzz 39 of 100 (50 is a normal day for this stock).
- MomentumWeak-5.3% over the last month; the price is below its 20-day average.
- News impactLow1 news items and filings in two weeks; 0 rated high impact, 0 medium.
Signals describe activity, not recommendations. Not financial advice.
IS Dongseo stock overview
IS Dongseo (아이에스동서, KRX: 010780) is listed on KOSPI, in the Building materials sector. The company, through its subsidiaries, operates four segments: concrete, construction, environment, and other businesses. Its shares closed at ₩14,170 on Oct 28, 2026, down 1.19% on the day, giving it a market value of ₩421B.
Key facts
- Market cap
- ₩421B
- Sector
- Building materials
- Latest price change
- −1.19%
- As of
- Oct 28, 2026
- Main business
- The company, through its subsidiaries, operates four segments: concrete, construction, environment, and other businesses.
Quick answers about IS Dongseo
- What does IS Dongseo do?
- The company, through its subsidiaries, operates four segments: concrete, construction, environment, and other businesses. Its concrete segment produces and sells non-PC building materials, its construction segment supplies apartments and commercial properties through building and civil engineering work, and its environment segment handles waste resources, aggregate sales, waste treatment services, environmental facility construction, and recycling of waste batteries. Its concrete and construction segments generate all of their sales domestically in Korea, and it operates production plants and offices across South Korea, with subsidiaries also running businesses in areas such as shipping, golf and resort operations, and waste treatment in the United States, Hong Kong, and Slovakia.
- What is the market cap of IS Dongseo?
- The market capitalisation of IS Dongseo was ₩421B at the close on Oct 28, 2026.
- Who are the largest shareholders of IS Dongseo?
- According to the latest official filings, the largest reported holders are Kwon Hyeok-un (56.77%, as of Oct 14, 2026); National Pension Service (3.99%, as of Oct 2, 2026); VANGUARD TOTAL INTERNATIONAL STOCK INDEX FUND (0.59%, as of Jul 31, 2026).
- When is the next earnings report from IS Dongseo?
- Korean companies rarely announce results dates in advance. Based on when IS Dongseo filed the same report in past years, its next 3q results is expected around Nov 14, 2026.
- Does the National Pension Service own IS Dongseo?
- Yes. The National Pension Service held 3.99% of IS Dongseo shares as of Oct 2, 2026.
Company profile
The company, through its subsidiaries, operates four segments: concrete, construction, environment, and other businesses. Its concrete segment produces and sells non-PC building materials, its construction segment supplies apartments and commercial properties through building and civil engineering work, and its environment segment handles waste resources, aggregate sales, waste treatment services, environmental facility construction, and recycling of waste batteries. Its concrete and construction segments generate all of their sales domestically in Korea, and it operates production plants and offices across South Korea, with subsidiaries also running businesses in areas such as shipping, golf and resort operations, and waste treatment in the United States, Hong Kong, and Slovakia.
Written by AI from the company's latest annual report.
- Korean name
- 아이에스동서
- Sector
- Building materials
- Business group
- IS Holdings
- CEO
- 배기문, 남병옥
- Founded
- Sep 1975
- Listed
- Jan 1986
- Listed shares
- 29,724,668
- Fiscal year ends
- Month 12
- Website
- www.isdongseo.co.kr
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Recent news
IS Dongseo to Build Enterprise-Wide Risk Management System, Proactively Addressing Management Risks
Predicted impact: Low· Actual: +8.5% vs sector, volume 0.9× normal (5 trading days)
Generic enterprise risk management system announcement with no financial figures.
Recent filings
See all- 5%+ holding reportOct 14, 2026
- Insider shareholding reportOct 14, 2026
- 5%+ holding reportOct 8, 2026
- 5%+ holding reportOct 2, 2026
- Major sales or supply contractOct 1, 2026
Titles in Korean until English translations are added.
Also known as: IS Dongseo / 아이에스동서 / 010780 / KRX:010780
Source: KRX statistical information