Lightron Fiber-Optic Devices (069540) stock
KOSDAQ · Communications Equipment
As of the Nov 13 regular-session close (Korea)
- Market cap
- KRW 404.6 billion
- As of Nov 13, 2026
- P/E
- -29.39x
- Trailing twelve months
- P/B
- 4.05x
- Latest reported equity
- P/S
- 15.14x
- Trailing twelve months
- ROE
- -13.8%
- Trailing twelve months
- Dividend yield
- Not available
- Latest fiscal-year dividends
Multiples use the price as of Nov 13, 2026 and may differ from the current price.
- Market cap
- KRW 404.6 billion
- As of Nov 13, 2026
- P/E
- -29.39x
- Trailing twelve months
- P/B
- 4.05x
- Latest reported equity
- P/S
- 15.14x
- Trailing twelve months
- ROE
- -13.8%
- Trailing twelve months
- Dividend yield
- Not available
- Latest fiscal-year dividends
Multiples use the price as of Nov 13, 2026 and may differ from the current price.
Compares the share price with the company's earnings, net assets and sales. Check trading status and financial notes separately.
Price date for the multiples · Nov 13, 2026 · Financial period · Trailing twelve months
P/E and P/S use the latest four quarters where available · P/B uses the latest equity · Computed in-house by ChickenStock
P/E
-29.39x
Net loss — not comparable
P/B
4.05x
P/S
15.14x
Earnings and dividend metrics▾
Earnings
EPS
-KRW 122
Earnings per share
BPS
KRW 887
Book value per share
ROE
-13.8%
Return on equity
- EPS — what one share earned over the last four quarters. The company is currently loss-making, at KRW 122 per share.
- BPS — net assets divided by the number of shares. Each share is backed by KRW 887 of net assets.
- ROE — shareholder equity shrank by 13.8% over a year.
ⓘ What are these valuation metrics?▾
P/E = share price ÷ earnings per share (EPS)
P/B = share price ÷ book value per share (BPS)
P/S = share price ÷ sales per share
P/E shows how many times annual earnings per share the price is; not all earnings are paid to shareholders. P/B compares the price with net assets, and P/S with sales.
Higher or lower is not good or bad by itself. Typical levels differ by industry; read P/B alongside ROE and P/S alongside margins.
ChickenStock computes these from DART financial filings: net income attributable to owners of the parent and revenue are summed over the latest four quarters, equity is the latest reported equity, and prices are KRX closing prices.
A negative P/E means a net loss. Reference information only, not a recommendation to buy or sell.
Earnings
Revenue, operating profit and net income from periodic reports filed with DART, Korea’s regulatory filing system.
| Period | Revenue | Operating profit | Net income | Revenue YoY |
|---|---|---|---|---|
| Q2 2026Consolidated · Filed Aug 14, 2026 | KRW 2.9 billion | -KRW 1.5 billion | -KRW 300 million | -63.2% |
| Q1 2026Consolidated · Filed May 15, 2026 | KRW 8.5 billion | -KRW 2.3 billion | -KRW 2 billion | 0.0% |
| Q4 2025Consolidated · Filed Mar 20, 2026 | KRW 7.7 billion | -KRW 8.3 billion | -KRW 9.6 billion | — |
| Q3 2025Consolidated · Filed Nov 14, 2025 | KRW 7.6 billion | -KRW 2.3 billion | -KRW 1.9 billion | +142.3% |
| Q2 2025Consolidated · Filed Aug 14, 2025 | KRW 8 billion | -KRW 3.7 billion | -KRW 6.2 billion | +52.7% |
| Q1 2025Consolidated · Filed May 13, 2025 | KRW 8.5 billion | -KRW 2.3 billion | -KRW 2 billion | +122.2% |
| Period | Revenue | Operating profit | Net income | Revenue YoY |
|---|---|---|---|---|
| FY2025Consolidated · Filed Mar 20, 2026 | KRW 31.8 billion | -KRW 16.5 billion | -KRW 19.7 billion | — |
| FY2024Consolidated · Filed Apr 7, 2025 | KRW 18.1 billion | -KRW 10.3 billion | -KRW 18.6 billion | — |
- Q2 2026 is computed as H1 2026 minus Q1 2026.
- Q4 2025 is computed as FY2025 minus 9M 2025.
- Q3 2025 is computed as 9M 2025 minus H1 2025.
- Q2 2025 is computed as H1 2025 minus Q1 2025.
Short selling and securities lending
Short sales as a share of trading value, the reported short position and the securities lending balance.
- Short-sale share
- 0.41%
- Of trading value on Nov 13, 2026
- Short-sale value
- KRW 80 million
- Previous 20-day average 0.59%
- Net short position
- 1,923,054 shares
- As of Nov 11, 2026 · reported with a two-trading-day lag
- Lending balance
- 4,277,394 shares
- As of Nov 13, 2026 · 3.80% of listed shares
| Date | Share | Value |
|---|---|---|
| Nov 13, 2026 | 0.41% | KRW 80 million |
| Nov 12, 2026 | 0.46% | KRW 240 million |
| Nov 11, 2026 | 0.29% | KRW 60 million |
| Nov 10, 2026 | 0.43% | KRW 100 million |
| Nov 9, 2026 | 0.88% | KRW 150 million |
| Nov 6, 2026 | 0.21% | KRW 40 million |
| Nov 5, 2026 | 1.44% | KRW 330 million |
| Nov 4, 2026 | 0.21% | KRW 80 million |
| Nov 3, 2026 | 2.51% | KRW 540 million |
| Nov 2, 2026 | 1.39% | KRW 560 million |
The short-sale share is short-sale value divided by total trading value that day. The lending balance also includes stock lent for purposes other than short selling.
Filings
Major filings received by DART, Korea’s regulatory filing system.
- Report on Major Holdings of Shares (General Form)Nov 13, 2026 · Major Holding ReportEnglish
- Report on Major Holdings of Shares (General Form)(Korean)Nov 13, 2026 · Major Holding Report
- [Amended] Decision on Convertible Bond Issuance(Korean)Oct 28, 2026 · Bond Issuance
- Report on Specified Securities Held by Executives and Major ShareholdersOct 27, 2026 · Insider Ownership ReportEnglish
- Report on Major Holdings of Shares (General Form)Oct 27, 2026 · Major Holding ReportEnglish
- [Amended] Resolution to Convene a Shareholders Meeting (Extraordinary General Meeting)Oct 16, 2026 · Shareholders MeetingEnglish
- Report on Specified Securities Held by Executives and Major ShareholdersOct 15, 2026 · Insider Ownership ReportEnglish
- Report on Major Holdings of Shares (General Form)Oct 15, 2026 · Major Holding ReportEnglish
Filings with a published English version open in English; the rest link to the Korean original.
Lightron Fiber-Optic Devices (069540) stock information
KOSDAQ
Lightron Fiber-Optic Devices (069540) is listed on KOSDAQ. Its market capitalization is about KRW 404.6 billion. On trailing-twelve-month earnings the P/E ratio is -29.39, and the P/B ratio is 4.05. Return on equity is -13.8%. These figures are computed in-house from official filings and are reference information only.
Lightron Fiber-Optic Devices — frequently asked questions
- What is the P/E ratio of Lightron Fiber-Optic Devices (069540)?
- On a trailing-twelve-month basis, 069540 trades at a P/E ratio of -29.39. It is calculated as market capitalization divided by net income attributable to controlling interests, using official filings. Reference information only.
- What is the market capitalization of Lightron Fiber-Optic Devices?
- 069540 has a market capitalization of about KRW 404.6 billion. The figure moves with the share price and is refreshed each trading day.
- Is this page investment advice?
- No. Every figure on this page is factual reference information compiled from public filings. It is not investment advice, not a price forecast and not a recommendation to buy or sell. Investment decisions rest with the user.
All metrics, scores, and content provided by ChickenStock are reference information derived from market data. They are not investment advice or a solicitation to trade. Investment decisions and their consequences rest with the user.