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GMM 6640
Close
795
▼ 45 (−5.36%)
Four-Light Health Check
Overall score
64/ 100
- 📈 Fundamentals 🟢 Strong Same as yesterday
- 👁 Flows 🟢 Strong Same as yesterday
- 📊 Technicals 🟡 Neutral Same as yesterday
- 💰 Valuation 🟢 Strong Same as yesterday
💡 Worth noting today
- Valuation P/E of 41.7x sits in the historically cheap band bullish
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GMM (6640) Four-Light Health Check
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💡 In one line: ()
Weighting：📈 Fundamentals %｜👁 Flows %｜📊 Technical %｜💰 Valuation %
GMM (6640)
Overall health score / 100
Four-light detail
- 📈 Fundamentals -
- VIP
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- 👁 Flows -
- VIP
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｜
- 📊 Technicals -
- VIP
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｜
- 💰 Valuation -
- VIP
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The underlying four-light factors are VIP content
VIP shows the actual value, rule and note of every factor, with no daily limit.
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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.
GMM (6640) Technical indicators
- Open 845
- High 867
- Low 792
- Close 795
- Volume 172
- Prev close 840
GMM (6640) today trades above the 5-day MA but still below the 20-day (monthly) MA and 60-day (quarterly) MA. The MACD histogram stays negative but is narrowing, KD sits at 40 in neutral territory, RSI is 38 with soft short-term momentum.
Signals today
- ● MACD keeps a negative histogram
Indicator values
| Item | Value |
|---|---|
| Close | 795.00 |
| 5-day MA | 788.40 |
| 20-day (monthly) MA | 897.35 |
| 60-day (quarterly) MA | 1034.17 |
| 120-day (half-yearly) MA | 1050.92 |
| 240-day (yearly) MA | 1003.09 |
| K (9) | 40.00 |
| D (9) | 29.97 |
| RSI (14) | 38.22 |
| Bollinger upper band (20) | 1085.94 |
| Bollinger lower band (20) | 708.76 |
| DIF (12,26) | -70.97 |
| MACD (9) | -65.64 |
| OSC histogram | -5.33 |
| Volume (lots) | 172 |
| 20-day avg. volume (lots) | 251 |
| Volume ratio (volume ÷ 20-day avg.) | 0.69 |
Indicator
GMM (6640) Monthly revenue
Latest revenue for 10/2026 was NT$570.93M, MoM +14.5%, YoY +280.14%.Cumulative revenue through 10/2026 was NT$3.88B, cumulative YoY +79.01%.
Full-year 2025 revenue was NT$2.69B.
| Month | Close | Revenue (NT$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
GMM (6640) EPS
Latest EPS for Q3 2026 was NT$9.42, QoQ +118%, YoY +121%.Cumulative EPS through Q3 2026 was NT$18.94, YoY +101%.
Full-year 2025 EPS was NT$12.75.
Income statement
| Year / quarter | Close | Revenue (NT$M) | Gross profit | Operating income | Net income | EPS |
|---|
GMM (6640) Profitability
ROE / ROA (%)
| Year / quarter | Close | Quarterly ROE | Trailing 4Q ROE | Quarterly ROA | Trailing 4Q ROA |
|---|
GMM (6640) — 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 blue band, meaning the share price is at a relatively low level
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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 blue band, meaning the share price is at a relatively low level.
The P/B river chart is VIP content
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GMM (6640) Dividend policy
The latest ex-dividend date was 2026/06/17, distribution No.1 of 2026, paying a cash dividend of NT$15, a cash yield of 1.35%.Over the past five years the average cash dividend was NT$9.2, for an average cash yield of 3.29%.
| Year | Ex-date | Price before ex-date | Cash dividend | Payment date | Cash yield | Stock dividend |
|---|---|---|---|---|---|---|
GMM (6640) 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) |
GMM (6640) — what it does
GMM (6640) full name: GMM, in the 半導體業 sector, with paid-in capital of 2.89 億 and a market cap of 229.85 億.
Founded on 2010/10/15, listed on the TPEx on 2018/10/23,
its principal business is 機械設備製造業、模具製造業、機械.模具批發業.
| Company | GMM Website | ||
|---|---|---|---|
| Chairman | 梁又文 | President | 石敦智 |
| Founded | 2010/10/15 | TPEx listing date | 2018/10/23 |
| Industry | 半導體業 | Business tax ID | 53186146 |
| Address | 新北市土城區民生街2-1號 | ||
| Main business | 機械設備製造業、模具製造業、機械.模具批發業 | ||
| Paid-in capital | 2.89 億 | ||
|---|---|---|---|
| Ordinary shares issued | 2,891.15 萬 shares | ||
| Market cap | 229.85 億 (2026/11/12) | ||
| Preferred shares | 0 shares | ||
| Auditor | 資誠聯合會計師事務所 | ||
| Transfer agent | 凱基證券(股)公司股務代理部 | ||
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)
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