Stock listing
TWSE:2478 Ta-I Technology Co. Ltd. (大毅) 股價
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Share price · TWSE:2478
$109.00 TWD -8.00 (-6.8%)
Close on Oct 30, 2026
- Day range
- $106.00 – $113.00 TWDOct 30, 2026
- Volume
- 2.86M sharesOct 30, 2026
- Market cap
- $15.56B TWDAt the close on Oct 30, 2026 · price × 142.7M shares outstanding
- 52-week range
- $54.20 – $256.50 TWDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $805.7M TWDMedian day 4.00M shares · 1 day with no trades · last 3 months, Jul 30, 2026 – Oct 30, 2026

Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · TWSE:2478 · TWD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $109.00 | -8.00 | -6.8% | $112.00 | $113.00 | $106.00 | 2,864,448 | |
| $117.00 | -2.50 | -2.1% | $118.00 | $118.50 | $114.50 | 2,050,450 | |
| $119.50 | +5.00 | +4.4% | $118.00 | $119.50 | $116.50 | 2,040,750 | |
| $114.50 | -4.00 | -3.4% | $120.00 | $121.00 | $114.00 | 3,554,467 | |
| $118.50 | 0.00 | 0.0% | $118.50 | $118.50 | $118.50 | 0 | |
| $118.50 | -8.00 | -6.3% | $127.50 | $129.00 | $118.00 | 7,381,311 | |
| $126.50 | +6.50 | +5.4% | $123.00 | $131.00 | $123.00 | 9,204,180 | |
| $120.00 | -2.00 | -1.6% | $120.50 | $128.00 | $119.00 | 9,208,329 | |
| $122.00 | -11.00 | -8.3% | $127.50 | $128.00 | $120.00 | 7,783,158 | |
| $133.00 | -9.00 | -6.3% | $147.50 | $149.50 | $133.00 | 27,607,583 | |
| $142.00 | +4.50 | +3.3% | $135.50 | $150.00 | $135.50 | 42,672,864 | |
| $137.50 | +12.50 | +10.0% | $128.50 | $137.50 | $128.00 | 9,121,605 | |
| $125.00 | -4.50 | -3.5% | $127.50 | $133.00 | $122.50 | 3,919,080 | |
| $129.50 | -5.00 | -3.7% | $130.50 | $133.50 | $128.00 | 5,037,958 | |
| $134.50 | 0.00 | 0.0% | $133.00 | $136.00 | $129.00 | 6,263,150 | |
| $134.50 | +6.00 | +4.7% | $130.00 | $138.50 | $130.00 | 13,747,716 | |
| $128.50 | +2.00 | +1.6% | $128.00 | $130.00 | $125.50 | 2,412,765 | |
| $126.50 | -0.50 | -0.4% | $130.00 | $132.00 | $126.00 | 4,720,794 | |
| $127.00 | +2.50 | +2.0% | $124.00 | $128.50 | $123.50 | 4,055,043 | |
| $124.50 | +4.50 | +3.8% | $120.50 | $128.50 | $120.50 | 6,164,365 | |
| $120.00 | +2.50 | +2.1% | $119.50 | $121.00 | $118.50 | 971,501 | |
| $117.50 | -2.50 | -2.1% | $118.50 | $121.00 | $116.50 | 1,281,320 | |
| $120.00 | +0.50 | +0.4% | $119.00 | $121.50 | $119.00 | 1,163,530 | |
| $119.50 | -0.50 | -0.4% | $122.00 | $123.00 | $119.00 | 1,425,471 | |
| $120.00 | 0.00 | 0.0% | $123.00 | $124.00 | $119.50 | 1,710,200 | |
| $120.00 | -0.50 | -0.4% | $122.00 | $124.00 | $119.50 | 1,552,224 | |
| $120.50 | +2.50 | +2.1% | $121.00 | $122.00 | $118.50 | 1,452,810 | |
| $118.00 | -2.00 | -1.7% | $121.00 | $124.00 | $117.50 | 1,839,451 | |
| $120.00 | +3.00 | +2.6% | $118.00 | $120.00 | $116.50 | 1,386,190 | |
| $117.00 | -2.00 | -1.7% | $118.50 | $121.50 | $116.50 | 1,481,208 | |
| $119.00 | +0.50 | +0.4% | $115.50 | $121.00 | $114.00 | 1,725,140 | |
| $118.50 | -5.50 | -4.4% | $120.00 | $124.00 | $118.00 | 2,617,680 | |
| $124.00 | +1.50 | +1.2% | $120.50 | $126.00 | $118.00 | 3,597,308 | |
| $122.50 | +1.50 | +1.2% | $121.50 | $124.50 | $121.00 | 1,616,759 | |
| $121.00 | -6.00 | -4.7% | $126.00 | $126.00 | $121.00 | 2,593,760 | |
| $127.00 | +1.50 | +1.2% | $128.50 | $131.00 | $126.00 | 7,630,629 | |
| $125.50 | +11.00 | +9.6% | $117.50 | $125.50 | $117.50 | 5,792,738 | |
| $114.50 | -6.50 | -5.4% | $121.50 | $121.50 | $114.50 | 2,285,104 | |
| $121.00 | -2.50 | -2.0% | $120.50 | $123.00 | $119.50 | 1,800,822 | |
| $123.50 | 0.00 | 0.0% | $123.00 | $128.00 | $122.50 | 3,769,668 | |
| $123.50 | -6.00 | -4.6% | $126.50 | $133.50 | $120.00 | 4,224,556 | |
| $129.50 | +4.50 | +3.6% | $130.00 | $136.00 | $126.50 | 11,911,276 | |
| $125.00 | +3.00 | +2.5% | $124.00 | $128.50 | $120.50 | 5,856,349 | |
| $122.00 | +1.50 | +1.2% | $120.00 | $122.50 | $118.00 | 2,809,020 | |
| $120.50 | 0.00 | 0.0% | $119.00 | $120.50 | $112.50 | 3,846,018 | |
| $120.50 | -3.00 | -2.4% | $123.50 | $125.50 | $120.00 | 2,969,412 | |
| $123.50 | -5.00 | -3.9% | $128.50 | $131.50 | $122.00 | 6,896,460 | |
| $128.50 | -6.00 | -4.5% | $135.50 | $136.00 | $126.00 | 18,270,716 | |
| $134.50 | +12.00 | +9.8% | $118.50 | $134.50 | $118.00 | 11,449,681 | |
| $122.50 | -2.50 | -2.0% | $123.50 | $129.50 | $122.00 | 3,973,190 | |
| $125.00 | -3.00 | -2.3% | $125.00 | $127.50 | $121.00 | 3,034,450 | |
| $128.00 | -2.00 | -1.5% | $133.00 | $134.50 | $126.00 | 7,121,001 | |
| $130.00 | +1.50 | +1.2% | $131.00 | $141.00 | $129.50 | 23,375,422 | |
| $128.50 | +7.50 | +6.2% | $123.00 | $133.00 | $121.00 | 14,356,576 | |
| $121.00 | -1.00 | -0.8% | $120.00 | $131.00 | $119.50 | 16,729,160 | |
| $122.00 | +8.00 | +7.0% | $117.50 | $124.00 | $117.50 | 3,996,106 | |
| $114.00 | -7.50 | -6.2% | $120.00 | $122.50 | $113.50 | 2,967,491 | |
| $121.50 | +1.50 | +1.3% | $118.00 | $123.00 | $112.00 | 4,199,959 | |
| $120.00 | -1.50 | -1.2% | $126.50 | $128.00 | $119.00 | 6,254,797 | |
| $121.50 | +3.50 | +3.0% | $116.00 | $125.00 | $112.00 | 10,527,212 | |
| $118.00 | +9.50 | +8.8% | $108.00 | $119.00 | $107.50 | 7,180,775 | |
| $108.50 | +8.60 | +8.6% | $109.50 | $109.50 | $104.00 | 5,125,594 | |
| $99.90 | -4.60 | -4.4% | $102.50 | $108.50 | $97.90 | 4,832,737 |
- Ticker
- TWSE:2478
- Asset type
- Stock
- Sector
- Technology
- Industry
- Electronics & hardware
- Exchange
- TWSE
- Currency
- TWD
What changed lately
Latest news release · Jun 10, 2026
Table: Ta I Technology May Rev NT$544.0M Vs NT$467.1M
Latest news
Table: Ta I Technology May Rev NT$544.0M Vs NT$467.1M
Jun 9, 2026
Closed $170.00 (+1.8%) on Jun 10, 2026
Table: Ta I Technology Apr Rev NT$542.2M Vs NT$485.9M
May 8, 2026
Closed $77.90 (-0.3%) on May 11, 2026
Table: Ta I Technology Mar Rev NT$561.1M Vs NT$494.3M
Apr 9, 2026
Closed $63.20 (+1.9%) on Apr 10, 2026
Decks
Q3 2024 Earnings Presentation
Earnings · 18 slides · November 2024
Ta-I Technology Co. Ltd. on 6ix
- Sector
- Technology
- Industry
- Electronics & hardware
- News releases
- 3 in the last 12 months · 3 in all · newest Jun 10, 2026 · oldest 2026
- Decks
- 1 deck · latest November 2024
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