Atum에이텀
355690 · KOSDAQ · ₩355690 · 에이텀
- Market cap
- ₩64B
- Enterprise value
- ₩83B
- P/E
- —
- P/B
- 5.0×
- Dividend yield
- 0.0%
- ROE
- −45.7%
- Net margin
- −5.3%
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−20.2% from the high
₩2,940Today: ₩6,340 – ₩6,860₩8,180
Returns
- 1W−12.7%
- 1M+29.8%
- 3M+49.1%
- 6M+26.1%
- YTD+81.3%
- 1Y−7.9%
- Volume today
- 104,925
- 0.6× the 20-day average
- Traded today
- ₩687M
- Listed shares
- 9,777,458
- EPS (12 months)
- −₩602
- Earnings yield −9.2%
Upcoming dates
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Signals
Quiet- BuzzQuietBuzz 36 of 100 (50 is a normal day for this stock).
- MomentumStrong31.7% over the last month; the price is above 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.
Atum stock overview
Atum (에이텀, KRX: 355690) is listed on KOSDAQ, in the Electronic components sector. Atum is a Korean company that designs and manufactures flat-plate transformers, including compact, high-efficiency, and high-output models, along with related core components and total solutions. Its shares closed at ₩6,530 on Oct 27, 2026, up 0.46% on the day, giving it a market value of ₩64B.
Key facts
- Market cap
- ₩64B
- Sector
- Electronic components
- Latest price change
- +0.46%
- As of
- Oct 27, 2026
- Main business
- Atum is a Korean company that designs and manufactures flat-plate transformers, including compact, high-efficiency, and high-output models, along with related core components and total solutions.
Quick answers about Atum
- What does Atum do?
- Atum is a Korean company that designs and manufactures flat-plate transformers, including compact, high-efficiency, and high-output models, along with related core components and total solutions. Its transformer business serves portable device chargers (travel adapters) and TV power supplies for customers such as S and L, with planned expansion into electric vehicle parts and EV chargers; production is carried out at its Ansan plant and its Vietnam subsidiary. The group also includes subsidiaries engaged in MLCC distribution and marine engine and industrial machinery parts manufacturing.
- What is the market cap of Atum?
- The market capitalisation of Atum was ₩64B at the close on Oct 27, 2026.
- Who are the largest shareholders of Atum?
- According to the latest official filings, the largest reported holders are Han Taek-su (28.27%, as of May 12, 2026); Renaissance Asset Management (9.65%, as of Jun 24, 2026); Korea EV Components & Materials New Technology Partnership No. 1 (4.12%, as of Oct 12, 2026).
- When is the next earnings report from Atum?
- Korean companies rarely announce results dates in advance. Based on when Atum filed the same report in past years, its next 3q results is expected between Nov 14, 2026 and Nov 29, 2026.
Company profile
Atum is a Korean company that designs and manufactures flat-plate transformers, including compact, high-efficiency, and high-output models, along with related core components and total solutions. Its transformer business serves portable device chargers (travel adapters) and TV power supplies for customers such as S and L, with planned expansion into electric vehicle parts and EV chargers; production is carried out at its Ansan plant and its Vietnam subsidiary. The group also includes subsidiaries engaged in MLCC distribution and marine engine and industrial machinery parts manufacturing.
Written by AI from the company's latest annual report.
- Korean name
- 에이텀
- Sector
- Electronic components
- Themes
- Smartphone parts
- CEO
- 한택수
- Founded
- Feb 2016
- Listed
- Dec 2023
- Listed shares
- 9,777,458
- Fiscal year ends
- Month 12
- Website
- www.iatum.com/
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Recent filings
See all- Exercise of Conversion Rights (2nd and 4th Issuances)Oct 21, 2026
- 5%+ holding reportOct 12, 2026
- Amended: 5%+ holding reportOct 12, 2026
- Exercise of Conversion Rights (1st Series)Oct 8, 2026
- Adjustment of Conversion Price (2nd and 3rd Series)Sep 28, 2026
Titles in Korean until English translations are added.
Also known as: Atum / 에이텀 / 355690 / KRX:355690
Source: KRX statistical information