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161580 - Philoptics Co., Ltd.

161580 Summary
Machinery
Stock Price & Overview
₩25,800 +700 (+2.79%) Close · Sep 4, 2026 KST
KOSDAQ | ₩KRW | Close: ₩25,800  ≈ US$18  ·  Market cap ₩0.6tn (≈ $432m)
Why this page exists. Korean issuers file to DART, not the SEC, and almost nothing is published in English. Titles here are translated; where kstock has read the filing, the row carries the explanation and the amount in won and dollars. How we pick »

161580 DART Filings

DART

Half-Year Report

Periodic08/14/26title translated
DART

New Facility Investment

Capex05/22/26title translated
DART

Quarterly Report

Periodic05/14/26title translated
5 routine filings (insider holdings reports, IR schedules)DART

5% Ownership Report — Large Holdings

Ownership08/28/26title translated
DART

5% Ownership Report — Large Holdings

Ownership07/02/26title translated
DART

5% Ownership Report — Large Holdings

Ownership05/28/26title translated
DART

Insider / Major Shareholder Holdings Report

Ownership05/22/26title translated
DART

Investor Relations Event

IR05/11/26title translated
8 filings on file, grouped where one event produced many. Source: DART, operated by Korea's Financial Supervisory Service.

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What a US investor should know

  • Trading hours09:00–15:30 KST — 20:00–02:30 US Eastern the night before.
  • Daily limitKorean stocks can move at most ±30% in a session before trading halts.
  • Getting exposureKRX shares are not directly tradable in most US brokerage accounts. The usual routes are Korea ETFs or an international account.
  • ReportingKorean issuers file to DART, not the SEC. Half-year and quarterly reports land about 45 days after period end.