Stock data
光耀 (3666)
光耀 is a TPEx-listed company in Optoelectronic. Revenue for September 2026 was NT$13.63M, down 46.8% from a year earlier. EPS over the last four quarters totals -NT$2.24.
Company profile
Data as of 2026-10-14
- Market
- TPEx-listed
- Industry
- Optoelectronic
- Listed
- 2014-12-04
- Founded
- 2004-07-13
- Paid-in capital
- NT$1.39B
- Common shares issued
- 138,949,850
- Legal name
- 光耀科技股份有限公司
- Website
- https://www.optivtech.com
Monthly revenue
Data as of 2026-10-15
| Month | Revenue | MoM | YoY |
|---|---|---|---|
| 2026-09 | NT$13.63M | -65.9% | -46.8% |
| 2026-08 | NT$39.94M | +35.5% | +21.0% |
Year to date: -6.3% vs. last year (Jan–Sep 2026)
Earnings per share (EPS)
Data as of 2026-06-30
| Quarter | EPS (NT$) |
|---|---|
| 2026 Q2 | -0.28 |
| 2026 Q1 | -0.40 |
| 2025 Q4 | -1.12 |
| 2025 Q3 | -0.44 |
| 2025 Q2 | -1.08 |
| 2025 Q1 | -0.81 |
| 2024 Q4 | -1.61 |
| 2024 Q3 | -0.76 |
Last four quarters: -NT$2.24
Dividends
Data as of 2026-10-14
| Period | Cash (NT$) | Stock (NT$) | Ex-dividend | Ex-rights | Paid |
|---|---|---|---|---|---|
| 2025 年度 | 0.00 | 0.00 | — | — | — |
Shareholder structure
Data as of 2026-10-16
| Holding range | Holders | Share of total |
|---|---|---|
| 1–999 shares | 25,133 | 0.1% |
| 1,000–5,000 shares | 2,562 | 3.8% |
| 5,001–10,000 shares | 359 | 2.1% |
| 10,001–15,000 shares | 116 | 1.1% |
| 15,001–20,000 shares | 71 | 0.9% |
| 20,001–30,000 shares | 67 | 1.2% |
| 30,001–40,000 shares | 26 | 0.7% |
| 40,001–50,000 shares | 21 | 0.7% |
| 50,001–100,000 shares | 41 | 2.0% |
| 100,001–200,000 shares | 26 | 2.8% |
| 200,001–400,000 shares | 5 | 1.2% |
| 400,001–600,000 shares | 2 | 0.8% |
| 600,001–800,000 shares | 5 | 2.3% |
| 800,001–1,000,000 shares | 0 | 0.0% |
| 1,000,001+ shares | 9 | 80.4% |
TDCC data for 2026-10-16: 9 holders own more than 1,000 lots (80.4% of shares), and 25,133 hold less than one lot (0.1%).
Institutional net buying (last 20 trading days)
Data as of 2026-10-19
| Date | Foreign | Trust | Dealers | Total |
|---|---|---|---|---|
| 2026-10-19 | 9 | 0 | 0 | 9 |
| 2026-10-16 | 2 | 0 | 0 | 2 |
| 2026-10-15 | -4 | 0 | 0 | -4 |
| 2026-10-14 | 4 | 0 | 0 | 4 |
| 2026-10-13 | 2 | 0 | 0 | 2 |
| 2026-10-12 | 3 | 0 | 0 | 3 |
| 2026-10-08 | 25 | 0 | 0 | 25 |
| 2026-10-07 | 12 | 0 | -1 | 11 |
| 2026-10-06 | 4 | 0 | 0 | 4 |
| 2026-10-05 | -1 | 0 | 1 | 0 |
| 2026-10-02 | -3 | 0 | 0 | -3 |
| 2026-10-01 | 3 | 0 | 0 | 3 |
| 2026-09-30 | 4 | 0 | 0 | 4 |
| 2026-09-29 | 7 | 0 | 0 | 7 |
| 2026-09-24 | 3 | 0 | 0 | 3 |
| 2026-09-23 | 4 | 0 | 0 | 4 |
| 2026-09-22 | 4 | 0 | 0 | 4 |
| 2026-09-21 | 13 | 0 | 0 | 13 |
| 2026-09-18 | 2 | 0 | 0 | 2 |
| 2026-09-17 | 1 | 0 | 0 | 1 |
Unit: lots (1,000 shares). Over the last 20 trading days, institutions were net buyers of 94 lots.
Price (official close)
Data as of 2026-10-19
Last close NT$28.20 (2026-10-19); 52-week range NT$23.35–33.85.
Sources
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Market Observation Post System (MOPS)
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Taiwan Depository & Clearing Corporation public data
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Taiwan Stock Exchange and Taipei Exchange public data
Charts, drawing tools, and the P/E calculator are in the app, free to use.