1. Add the LINE friend
2. Send your linking code
Copy your linking code and send it on the Taiwan stocks - Winvest LINE channel
Wait for LINE to confirm that linking is complete
GSEO 3406
Close
980
▼ 15 (−1.51%)
Four-Light Health Check
Overall score
41/ 100
- 📈 Fundamentals 🟢 Strong Same as yesterday
- 👁 Flows 🟡 Neutral Same as yesterday
- 📊 Technicals 🟡 Neutral Same as yesterday
- 💰 Valuation 🔴 Weak Same as yesterday
💡 Worth noting today
- Health Overall health score down 5 points vs. yesterday bearish
- Valuation P/E of 29.4x sits in the historically expensive band bearish
VIP full research — unlimited tickers
Free reports today
of viewed today
This symbol is unlocked and counted toward today's quota
Reading on will use 1 of today's free views ( remaining)
Today's free views are used up; the allowance resets tomorrow
Don't want to wait until tomorrow? Upgrade to VIP and unlock this full analysis now
VIP has no ticker limit: every health-check factor, valuation river charts and full sector health rankings
GSEO (3406) Four-Light Health Check
Loading…
Health check data is being prepared. Please check back later.
The health check data format is being updated. Please check back later.
💡 In one line: ()
Weighting：📈 Fundamentals %｜👁 Flows %｜📊 Technical %｜💰 Valuation %
GSEO (3406)
Overall health score / 100
Four-light detail
- 📈 Fundamentals -
- VIP
-
-
｜
- 👁 Flows -
- VIP
-
-
｜
- 📊 Technicals -
- VIP
-
-
｜
- 💰 Valuation -
- VIP
-
-
｜
The underlying four-light factors are VIP content
VIP shows the actual value, rule and note of every factor, with no daily limit.
VIP full research — unlimited tickers
Free reports today
of viewed today
This symbol is unlocked and counted toward today's quota
Reading on will use 1 of today's free views ( remaining)
Today's free views are used up; the allowance resets tomorrow
VIP unlocks
- Unlimited access to the factors and rules behind every stock/ETF four-light health check
- P/E and P/B valuation river charts
- Full sector health rankings and relative positioning
- Post-close LINE alerts for your watchlist
Data as of: ｜This site is not a licensed securities investment consultancy. The four lights are a statistical summary of public information and do not constitute investment advice.
GSEO (3406) Technical indicators
- Open 1,015
- High 1,085
- Low 970
- Close 980
- Volume 11,315
- Prev close 995
GSEO (3406) today trades above the 5-day MA and 60-day (quarterly) MA but still below the 20-day (monthly) MA. The MACD histogram stays negative but is narrowing, KD sits at 43 in neutral territory, RSI is 49 with soft short-term momentum.
Signals today
- ● The price trades above the 60-day (quarterly) MA
- ● MACD keeps a negative histogram
Indicator values
| Item | Value |
|---|---|
| Close | 980.00 |
| 5-day MA | 909.20 |
| 20-day (monthly) MA | 1038.85 |
| 60-day (quarterly) MA | 959.62 |
| 120-day (half-yearly) MA | 782.30 |
| 240-day (yearly) MA | 620.92 |
| K (9) | 43.00 |
| D (9) | 30.29 |
| RSI (14) | 48.83 |
| Bollinger upper band (20) | 1300.25 |
| Bollinger lower band (20) | 777.45 |
| DIF (12,26) | -24.74 |
| MACD (9) | -5.14 |
| OSC histogram | -19.59 |
| Volume (lots) | 11,315 |
| 20-day avg. volume (lots) | 8,209 |
| Volume ratio (volume ÷ 20-day avg.) | 1.38 |
Indicator
GSEO (3406) Monthly revenue
Latest revenue for 10/2026 was NT$2.13B, MoM -20.41%, YoY -5.78%.Cumulative revenue through 10/2026 was NT$21.76B, cumulative YoY +8.34%.
Full-year 2025 revenue was NT$24.99B.
| Month | Close | Revenue (NT$M) | MoM change | YoY change | YTD vs. same period last year |
|---|---|---|---|---|---|
| Month | Close | Revenue (NT$M) | MoM change | YoY change | YTD vs. same period last year |
Latest revenue note:
A professional algo-trading development team at your service
GSEO (3406) EPS
Latest EPS for Q2 2026 was NT$6.09, QoQ -23%, YoY +186%.Cumulative EPS through Q2 2026 was NT$13.99, YoY +42%.
Full-year 2025 EPS was NT$32.84.
Income statement
| Year / quarter | Close | Revenue (NT$M) | Gross profit | Operating income | Net income | EPS |
|---|
GSEO (3406) Profitability
ROE / ROA (%)
| Year / quarter | Close | Quarterly ROE | Trailing 4Q ROE | Quarterly ROA | Trailing 4Q ROA |
|---|
GSEO (3406) — is it a buy?
P/E river chart
The P/E river chart is a valuation tool best suited to companies with stable earnings.Rising river: earnings power is steadily improving.
Flat river: earnings power is relatively stable.
Falling river: earnings power is deteriorating.
The chart splits P/E into three bands: red, yellow and blue.
The current price sits in the red band, meaning the share price is at a relatively high level
The P/E river chart is VIP content
Unlock to see the last 5 years of the P/E river chart
VIP full research — unlimited tickers
Free reports today
of viewed today
This symbol is unlocked and counted toward today's quota
Reading on will use 1 of today's free views ( remaining)
Today's free views are used up; the allowance resets tomorrow
VIP unlocks
- Unlimited access to the factors and rules behind every stock/ETF four-light health check
- P/E and P/B valuation river charts
- Full sector health rankings and relative positioning
- Post-close LINE alerts for your watchlist
P/B river chart
The P/B river chart is a valuation tool best suited to companies with unstable earnings, such as cyclicals.Rising river: book value is steadily improving.
Flat river: book value is relatively stable.
Falling river: book value is deteriorating.
The chart splits P/B into three bands: red, yellow and blue.
Based on the latest book value, the current price sits in the red band, meaning the share price is at a relatively high level.
The P/B river chart is VIP content
Unlock to see the last 5 years of the P/B river chart
VIP full research — unlimited tickers
Free reports today
of viewed today
This symbol is unlocked and counted toward today's quota
Reading on will use 1 of today's free views ( remaining)
Today's free views are used up; the allowance resets tomorrow
VIP unlocks
- Unlimited access to the factors and rules behind every stock/ETF four-light health check
- P/E and P/B valuation river charts
- Full sector health rankings and relative positioning
- Post-close LINE alerts for your watchlist
GSEO (3406) Dividend policy
The latest ex-dividend date was 2026/06/08, distribution No.1 of 2026, paying a cash dividend of NT$17, a cash yield of 2.49%.Over the past five years the average cash dividend was NT$13.4, for an average cash yield of 2.77%.
| Year | Ex-date | Price before ex-date | Cash dividend | Payment date | Cash yield | Stock dividend |
|---|---|---|---|---|---|---|
GSEO (3406) Institutional flows, margin & short
| Date | Foreign | Inv. Trust | Dealer | Total |
|---|---|---|---|---|
| Date | Margin balance (lots) | Short balance (lots) | Short/margin ratio (%) |
|---|---|---|---|
sector ranking
| Ticker | Health score | Close | Change | Volume | Turnover (100M) |
|---|---|---|---|---|---|
|
() (this stock) |
GSEO (3406) — what it does
GSEO (3406) full name: GSEO, in the 光電業 sector, with paid-in capital of 11.83 億 and a market cap of 1,159.12 億.
Founded on 1990/02/08, listed on the TWSE on 2005/12/20,
its principal business is 各類光學鏡頭、鏡片研發及生產製造、高功率LED室內外照明產品.
| Company | GSEO Website | ||
|---|---|---|---|
| Chairman | 陳天慶 | President | 郭英理 |
| Founded | 1990/02/08 | TWSE listing date | 2005/12/20 |
| Industry | 光電業 | Business tax ID | 23572557 |
| Address | 台中市大雅區中部科學工業園區科雅東路一號 | ||
| Main business | 各類光學鏡頭、鏡片研發及生產製造、高功率LED室內外照明產品 | ||
| Paid-in capital | 11.83 億 | ||
|---|---|---|---|
| Ordinary shares issued | 1.18 億 shares | ||
| Market cap | 1,159.12 億 (2026/11/12) | ||
| Preferred shares | 0 shares | ||
| Auditor | 安永聯合會計師事務所 | ||
| Transfer agent | 永豐金證券股份有限公司 | ||
Recommended brokerage accounts
如果想要開戶，目前新光證券的開戶好禮最多，新戶贈送證券期貨手續費折抵金 3000 元
也可以參考 Win投資證券開戶彙整 ，有更簡潔完善的資訊分享，包含特色、開戶禮等。
| 名稱 | 台股手續費 | 新戶禮 |
| 新光證券 (開戶點我) | 手續費 0 元 每月電子下單 100 萬以內 |
|
| 玉山證券 (開戶點我) | 2026 年 10 月起調降手續費率超低優惠。 詳 官網 | 新戶禮 $108 手續費回饋金 活動日期到 2027/9/30 |
| 國泰證券 (開戶點我) | 最低手續費 1 元 | 完成體驗登記+首筆成交回饋 300 元7-11數位商品卡券 2026/1/1~2026/12/31 |
| 口袋證券 (開戶點我) | 優惠價查詢 | 開立台股或台+美股送 $300 手續費折抵金 2026/10/1~12/31 |
(資料來源：各券商，最新資訊以各券商為主。資料整理：Win 投資)
My Watchlist
Sign in to build and track your own watchlist. Once you add symbols, you get a full closing report every day: health check, technical changes and a comparison against the TAIEX.