Optoelectronic sector index performance
On 11-13 the Optoelectronic sector index closed at 67.61: +14.53% over 1 week, -16.09% over 1 month, +6.32% over 3 months and +91.04% over 1 year. Combined monthly revenue for 2026/10 was +16.1% year on year (115 companies). The median P/E is 27.2, at the 79th percentile of the last 5 years.
Sector index history
Industry monthly revenue growth (YoY)
| Month | Combined YoY | Companies |
|---|---|---|
| 2026/10 | +16.1% | 115 |
| 2026/09 | +5.9% | 115 |
| 2026/08 | +0.7% | 115 |
| 2026/07 | +1.8% | 115 |
| 2026/06 | +6.7% | 115 |
| 2026/05 | +1.9% | 115 |
| 2026/04 | +2.2% | 115 |
| 2026/03 | +8.1% | 115 |
| 2026/02 | -4.4% | 115 |
| 2026/01 | +15.6% | 115 |
| 2025/12 | +2.3% | 115 |
| 2025/11 | -4.8% | 115 |
Valuation position
Median P/E
27.2
79th percentile of the last 5 years
Median P/B
1.65
63th percentile of the last 5 years
Data date 2026-11-13, 114 stocks. The percentile compares with this sector's own history; it does not mean expensive or cheap.
Top 30 stocks by turnover
| Stock | Close | Change % | Turnover (100M) |
|---|---|---|---|
| 3008 大立光 | 5310 | +5.04% | 114.77 |
| 2409 友達 | 30.4 | +4.11% | 107.03 |
| 6456 GIS-KY | 101.5 | 0.00% | 72.46 |
| 3441 聯一光電 | 198 | +0.76% | 63.76 |
| 3406 玉晶光 | 987 | +0.71% | 63.07 |
| 3481 群創 | 39.95 | +2.83% | 46.16 |
| 2466 冠西電 | 393 | -9.97% | 34.15 |
| 6278 台表科 | 231 | +0.43% | 33.09 |
| 4960 誠美材 | 32.85 | +3.96% | 17.50 |
| 3149 正達 | 72.4 | +6.63% | 13.62 |
| 3019 亞光 | 138 | +4.15% | 10.51 |
| 3691 碩禾 | 137 | -4.53% | 10.19 |
| 8069 元太 | 146 | +4.29% | 9.67 |
| 6209 今國光 | 80 | +5.40% | 8.25 |
| 6443 元晶 | 26.55 | -5.18% | 8.22 |
| 6234 高僑 | 58.4 | +9.98% | 6.86 |
| 8111 立碁 | 73.4 | -4.68% | 4.92 |
| 5230 雷笛克光學 | 35.2 | -5.50% | 4.91 |
| 2426 鼎元 | 79.8 | +1.66% | 4.88 |
| 2486 一詮 | 170 | +2.72% | 3.30 |
| 3563 牧德 | 623 | +0.32% | 2.98 |
| 3673 TPK-KY | 62.3 | +2.98% | 2.54 |
| 8064 東捷 | 100.5 | +1.41% | 2.07 |
| 3576 聯合再生 | 17.1 | -1.16% | 1.96 |
| 3455 由田 | 187.5 | +1.90% | 1.86 |
| 6116 彩晶 | 12.75 | +1.59% | 1.86 |
| 2489 瑞軒 | 34.05 | +3.18% | 1.84 |
| 5243 乙盛-KY | 79.9 | +0.88% | 1.78 |
| 3049 精金 | 12.35 | +9.78% | 1.72 |
| 2406 國碩 | 29.05 | -1.86% | 1.68 |
FAQ
How is the Optoelectronic sector index built?
It is TWSE's "光電類指數", tracking the overall share-price movement of listed companies in the industry as a price index, without dividend reinvestment. 116 listed and OTC common stocks belong to this industry classification.
What is industry monthly revenue growth?
For companies in the industry that reported the month and had revenue in the same month last year, this month's combined revenue divided by last year's combined revenue minus 1. It shows the industry's operating momentum; companies report at different times, so early in the month fewer companies are included, and the number is shown.
How do I read the P/E position?
We take the median P/E of companies in the industry (positive values only) and compare it with the industry's median at each period over the last 5 years, showing the share of history that is at or below today. It is a relative position versus its own history, not a statement of cheap or expensive and not advice.
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Source: TWSE industry sector price indexes, daily trading and valuation data, and MOPS monthly revenue. For education and personal reference only; not investment advice.