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Omnisystem

057540 · KOSDAQ · Manufacture of Measuring, Testing, Navigational & Control Instruments

– Previous close pending (official data.go.kr feed not active yet) Live price ↗

Source: Financial Services Commission stock price data (data.go.kr), updated once a day.

Daily price, 1 year

Key statistics

Market cap (KRW bn)–

PER–

PBR–

ROE %1.6

Debt ratio % (liabilities / equity)29

Revenue TTM (KRW bn)86.3

Op. profit TTM (KRW bn)1.1

Dividend yield %–

Basis: market cap at …; equity = total equity (consolidated if available) at 2026.06.30; net income = trailing 12 months to 2026.06.30 (consolidated). PER is not shown when TTM net income is negative.

Upcoming risk events

Next 90 days for this company, plus macro events tagged with this ticker or its sector. Not a recommendation.

No scheduled risk events found (last checked 2026-10-30 19:40 KST).

See it in the full calendar →

Annual results (KRW bn)

	2021	2022	2023	2024	2025
Revenue	91.1	98.0	91.4	109.1	99.1
Operating profit	-3.8	1.9	0.3	6.0	1.0
Net income	-12.4	0.5	0.6	6.7	-0.2

Quarterly results (KRW bn, 3 months)

	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Revenue	27.2	28.2	19.4	24.3	18.4	24.2
Operating profit	-0.3	-0.1	-0.1	1.4	-0.3	0.1
Net income	-0.5	-0.2	-0.7	1.3	1.0	0.3

Largest shareholder

As of the 2025 annual report: (주)바이오스마트 and related parties hold 23.41% of common shares.

Recent disclosures

Date	Filing
2026-10-29	Delisting / administrative issue designation 기타시장안내 (주가 미달에 따른 상장폐지 우려 관련 안내)	DART original
2026-10-20	Insider / major-holder ownership report 주식등의대량보유상황보고서(일반)	DART original
2026-10-20	Insider / major-holder ownership report 임원ㆍ주요주주특정증권등소유상황보고서	DART original
2026-10-20	Insider / major-holder ownership report 임원ㆍ주요주주특정증권등소유상황보고서	DART original
2026-10-20	Insider / major-holder ownership report 임원ㆍ주요주주특정증권등소유상황보고서	DART original
2026-10-20	Insider / major-holder ownership report 임원ㆍ주요주주특정증권등소유상황보고서	DART original
2026-10-19	Trading resumption 주권매매거래정지해제 (액면병합 주권 변경상장)	DART original
2026-10-08	Insider / major-holder ownership report 임원ㆍ주요주주특정증권등소유상황보고서	DART original
2026-09-18	Trading halt 주권매매거래정지 (주식의 병합, 분할 등 전자등록 변경, 말소)	DART original
2026-08-28	Shareholder meeting 임시주주총회결과	DART original
2026-08-21	Governance / misc. (routine) 자기주식취득결과보고서	DART original
2026-08-18	Insider / major-holder ownership report 주식등의대량보유상황보고서(일반)	DART original

Past material filings and price reaction (market-adjusted)

Date	Filing type	On the news (vs. market)	Next day (vs. market)	20 days (vs. market)
2026-09-18	Trading halt	-0.4%	+3.3%	–
2026-08-05	Warning: possible administrative-issue designation	+3.0%	+2.6%	-23.8%
2026-07-21	Share buyback decision	-1.7%	+1.4%	-36.4%
2026-07-21	Stock split / reverse split	-1.7%	+1.4%	-36.4%
2026-06-12	Share buyback decision	+7.7%	-5.1%	+31.5%
2026-03-11	Revenue/profit change >=30% (15% large caps)	+0.4%	-1.8%	+4.7%
2026-03-05	Share cancellation	-0.1%	-1.0%	+3.5%
2025-04-18	Treasury-stock disposal	-0.0%	-0.3%	-4.9%
2025-03-24	Share cancellation	+1.1%	+0.9%	+31.1%
2025-03-10	Revenue/profit change >=30% (15% large caps)	+11.7%	-1.6%	+23.9%

For information only, not investment advice. Data may be delayed or inaccurate. Full disclaimer → Data: OpenDART (FSS), stock prices: official previous-day close from the Financial Services Commission (data.go.kr) and FinanceData/marcap history, index data via FinanceDataReader, FX: ECB reference rates, crypto data from Upbit, Bithumb and Binance public APIs.
Market data not licensed for redistribution.
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