Aton아톤
158430 · KOSDAQ · ₩158430 · 아톤
- Market cap
- ₩128B
- Enterprise value
- ₩154B
- P/E
- 35.9×
- P/B
- 1.2×
- Dividend yield
- 0.0%
- ROE
- 3.2%
- Net margin
- 5.6%
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−54.2% from the high
₩3,300Today: ₩4,980 – ₩5,210₩11,370
Returns
- 1W0.0%
- 1M−5.1%
- 3M+39.5%
- 6M−36.5%
- YTD−15.6%
- 1Y−26.7%
- Volume today
- 1,026,094
- 0.3× the 20-day average
- Traded today
- ₩5.3B
- Listed shares
- 24,482,092
- EPS (12 months)
- ₩145
- Earnings yield 2.8%
Upcoming dates
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Why is it moving?
+5.2% on Oct 27, 2026.
A major shareholder filed a report on a holding of 5% or more in the company. The filing is routine and does not say much about the company's business.
AI summary of the news and filings linked. It can be wrong; check them.
- • Filing: 5%+ holding report
- • Foreign investors bought a net ₩515M that day
Possible reasons, not certainties. Not financial advice.
Signals
Quiet- BuzzQuietBuzz 27 of 100 (50 is a normal day for this stock).
- SentimentMixedNews: Only a routine ownership filing is available. Community: 0 bullish, 0 bearish posts this week.
- MomentumFlat-3.2% 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.
Aton stock overview
Aton (아톤, KRX: 158430) is listed on KOSDAQ, in the Software sector. Aton is a Korean fintech company founded in 1999 that provides authentication and security solutions for financial services. Its shares closed at ₩5,210 on Oct 27, 2026, up 5.15% on the day, giving it a market value of ₩128B.
Key facts
- Market cap
- ₩128B
- Sector
- Software
- Latest price change
- +5.15%
- As of
- Oct 27, 2026
- Main business
- Aton is a Korean fintech company founded in 1999 that provides authentication and security solutions for financial services.
Quick answers about Aton
- What does Aton do?
- Aton is a Korean fintech company founded in 1999 that provides authentication and security solutions for financial services. Its main offerings include the PASS electronic signature and simple certificate service developed with three mobile carriers, financial security solutions such as mobile OTP and private certificates sold to banks and securities firms, and an AI-based chatbot and contact center service. Its customers include major Korean banks and securities companies, and its T-money payment software is sold domestically, with some export sales.
- What is the market cap of Aton?
- The market capitalisation of Aton was ₩128B at the close on Oct 27, 2026.
- Who are the largest shareholders of Aton?
- According to the latest official filings, the largest reported holders are Kim Jong-seo (32.28%, as of Oct 26, 2026); Korea Securities Finance (4.40%, as of Jul 9, 2026); BNK Asset Management (4.03%, as of Jan 21, 2025).
- When is the next earnings report from Aton?
- Korean companies rarely announce results dates in advance. Based on when Aton filed the same report in past years, its next 3q results is expected around Nov 14, 2026.
- Does the National Pension Service own Aton?
- Yes. The National Pension Service held 0.53% of Aton shares as of Dec 31, 2025.
Company profile
Aton is a Korean fintech company founded in 1999 that provides authentication and security solutions for financial services. Its main offerings include the PASS electronic signature and simple certificate service developed with three mobile carriers, financial security solutions such as mobile OTP and private certificates sold to banks and securities firms, and an AI-based chatbot and contact center service. Its customers include major Korean banks and securities companies, and its T-money payment software is sold domestically, with some export sales.
Written by AI from the company's latest annual report.
- Korean name
- 아톤
- Sector
- Software
- CEO
- 김종서, 우길수
- Founded
- Oct 1999
- Listed
- Oct 2019
- Listed shares
- 24,482,092
- Fiscal year ends
- Month 12
- Website
- www.atoncorp.com
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Recent filings
See all- 5%+ holding reportOct 26, 2026
- Change of Head Office LocationAug 28, 2026
- [Amended] Notice of Stock Purchase Option GrantAug 28, 2026
- Half-year report (Jun 2026)Aug 14, 2026
- Change of CEOJul 27, 2026
Titles in Korean until English translations are added.
Also known as: Aton / 아톤 / 158430 / KRX:158430
Source: KRX statistical information