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)

161580 Stock Price

20K40K60Kprev 25Kpeak 63KOctNovDecJan ’26FebMarAprMayJunJulAugSep26K
52 Week Range
₩20,150₩63,000
Day Range
₩25,050₩25,900
Market Cap
₩0.6tn
P/E (TTM)
n/a (loss)
P/B
3.41x
P/S (TTM)
10.78x
Volume
69,718
Shares Out
23.4M
Prev. Close
₩25,100
vs 52W High
-59.0%
Multiples use the close and the financials that were public on that date (DART), the same series as the Valuation tab — they are not vendor figures.

161580 Analysis

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Nothing written yet for this company.

161580 News

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No news written yet.

161580 Momentum

Period161580KOSDAQDifference
1 week-6.9%-3.0%-3.9%
1 month-2.3%+4.2%-6.5%
3 months-42.6%-22.5%-20.1%
6 months-34.2%-16.9%-17.3%
Year to date-41.2%-12.1%-29.1%
1 year-16.8%+1.0%-17.8%

Closed at 13% of the way from its 52-week low (₩20,150) to its 52-week high (₩63,000).

Price return on KRX closes, KOSDAQ on the same dates, no dividends. A period starts at the last trading day on or before the calendar date.

161580 Filings

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DART

5% Ownership Report — Large Holdings

Ownership08/28/26title translated
DART

Half-Year Report

Periodic08/14/26title translated
DART

5% Ownership Report — Large Holdings

Ownership07/02/26title translated
DART

5% Ownership Report — Large Holdings

Ownership05/28/26title translated
Korean issuers file to DART, not the SEC. Titles are translated; where kstock has read the filing the row carries the explanation.

161580 Company Profile

Philoptics Co., Ltd. makes special-purpose machinery in South Korea. It is listed on KOSDAQ, was founded in 2008, is based in Gyeonggi, and has revenue of hundreds of billions of won.

SectorMachineryEmployees
MarketKOSDAQFounded2008
Korean name필옵틱스Head officeGyeonggi

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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.