Stock listing
TWSE:6691 Yankey Engineering Co. Ltd. (洋基工程) 股價
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Share price · TWSE:6691
$637.00 TWD -12.00 (-1.8%)
Close on Oct 30, 2026
- Day range
- $625.00 – $648.00 TWDOct 30, 2026
- Volume
- 495,540 sharesOct 30, 2026
- Market cap
- $84.50B TWDAt the close on Oct 30, 2026 · price × 132.7M shares outstanding
- 52-week range
- $388.64 – $794.00 TWDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $457.9M TWDMedian day 558,563 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:6691 · TWD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $637.00 | -12.00 | -1.8% | $638.00 | $648.00 | $625.00 | 495,540 | |
| $649.00 | -11.00 | -1.7% | $652.00 | $655.00 | $646.00 | 245,130 | |
| $660.00 | +12.00 | +1.9% | $662.00 | $662.00 | $648.00 | 256,368 | |
| $648.00 | -15.00 | -2.3% | $658.00 | $667.00 | $644.00 | 568,844 | |
| $663.00 | 0.00 | 0.0% | $663.00 | $663.00 | $663.00 | 0 | |
| $663.00 | -10.00 | -1.5% | $676.00 | $683.00 | $660.00 | 363,050 | |
| $673.00 | +2.00 | +0.3% | $676.00 | $687.00 | $673.00 | 395,386 | |
| $671.00 | -15.00 | -2.2% | $678.00 | $690.00 | $671.00 | 399,788 | |
| $686.00 | -14.00 | -2.0% | $678.00 | $694.00 | $678.00 | 447,234 | |
| $700.00 | -1.00 | -0.1% | $712.00 | $712.00 | $695.00 | 367,836 | |
| $701.00 | -33.00 | -4.5% | $717.00 | $720.00 | $701.00 | 571,897 | |
| $734.00 | +14.00 | +1.9% | $727.00 | $737.00 | $716.00 | 477,548 | |
| $720.00 | -27.00 | -3.6% | $735.00 | $743.00 | $718.00 | 765,854 | |
| $747.00 | -42.00 | -5.3% | $733.00 | $775.00 | $730.00 | 1,166,005 | |
| $789.00 | +13.00 | +1.7% | $781.00 | $794.00 | $772.00 | 822,272 | |
| $776.00 | -11.00 | -1.4% | $787.00 | $793.00 | $775.00 | 610,549 | |
| $787.00 | -7.00 | -0.9% | $794.00 | $794.00 | $769.00 | 1,000,874 | |
| $794.00 | +53.00 | +7.2% | $752.00 | $794.00 | $747.00 | 1,880,420 | |
| $741.00 | +8.00 | +1.1% | $740.00 | $759.00 | $730.00 | 1,258,777 | |
| $733.00 | +14.00 | +1.9% | $727.00 | $748.00 | $719.00 | 1,648,125 | |
| $719.00 | +65.00 | +9.9% | $666.00 | $719.00 | $665.00 | 2,341,164 | |
| $654.00 | -13.00 | -1.9% | $657.00 | $665.00 | $645.00 | 868,777 | |
| $667.00 | +21.00 | +3.3% | $639.00 | $668.00 | $636.00 | 658,958 | |
| $646.00 | +11.00 | +1.7% | $639.00 | $651.00 | $632.00 | 491,375 | |
| $635.00 | +3.00 | +0.5% | $641.00 | $649.00 | $634.00 | 497,871 | |
| $632.00 | -18.00 | -2.8% | $650.00 | $650.00 | $631.00 | 558,563 | |
| $650.00 | +40.00 | +6.6% | $619.00 | $650.00 | $617.00 | 1,111,877 | |
| $610.00 | -8.00 | -1.3% | $622.00 | $627.00 | $610.00 | 444,304 | |
| $618.00 | +10.00 | +1.6% | $610.00 | $624.00 | $610.00 | 565,558 | |
| $608.00 | -5.00 | -0.8% | $607.00 | $623.00 | $607.00 | 236,399 | |
| $613.00 | +4.00 | +0.7% | $609.00 | $618.00 | $602.00 | 250,485 | |
| $609.00 | -13.00 | -2.1% | $612.00 | $618.00 | $607.00 | 391,624 | |
| $622.00 | +3.00 | +0.5% | $630.00 | $631.00 | $616.00 | 428,389 | |
| $619.00 | +4.00 | +0.7% | $616.00 | $627.00 | $616.00 | 343,336 | |
| $615.00 | -9.00 | -1.4% | $621.00 | $624.00 | $615.00 | 238,319 | |
| $624.00 | +5.00 | +0.8% | $619.00 | $630.00 | $614.00 | 513,848 | |
| $619.00 | +16.00 | +2.7% | $611.00 | $629.00 | $598.00 | 669,138 | |
| $603.00 | -4.00 | -0.7% | $609.00 | $621.00 | $603.00 | 405,605 | |
| $607.00 | -24.00 | -3.8% | $622.00 | $634.00 | $607.00 | 663,935 | |
| $631.00 | +16.00 | +2.6% | $610.00 | $633.00 | $610.00 | 428,534 | |
| $615.00 | -3.00 | -0.5% | $618.00 | $619.00 | $605.00 | 475,114 | |
| $618.00 | -7.00 | -1.1% | $633.00 | $633.00 | $613.00 | 524,562 | |
| $625.00 | 0.00 | 0.0% | $630.00 | $645.00 | $623.00 | 599,254 | |
| $625.00 | +9.00 | +1.5% | $615.00 | $631.00 | $612.00 | 723,355 | |
| $616.00 | +5.00 | +0.8% | $611.00 | $632.00 | $605.00 | 873,457 | |
| $611.00 | +18.00 | +3.0% | $593.00 | $618.00 | $593.00 | 478,588 | |
| $593.00 | -17.00 | -2.8% | $605.00 | $607.00 | $592.00 | 938,362 | |
| $610.00 | +26.53 | +4.5% | $635.00 | $641.00 | $604.00 | 1,581,838 | |
| $583.47 | -5.785 | -1.0% | $577.69 | $585.95 | $571.07 | 1,275,297 | |
| $589.26 | -14.05 | -2.3% | $603.31 | $608.26 | $584.30 | 1,275,272 | |
| $603.31 | -58.51 | -8.8% | $605.79 | $607.44 | $593.39 | 583,408 | |
| $661.82 | 0.00 | 0.0% | $660.91 | $661.82 | $647.27 | 469,763 | |
| $661.82 | -4.545 | -0.7% | $673.64 | $675.45 | $660.00 | 445,600 | |
| $666.36 | +4.545 | +0.7% | $663.64 | $671.82 | $650.00 | 532,651 | |
| $661.82 | -3.636 | -0.5% | $673.64 | $674.55 | $661.82 | 387,728 | |
| $665.45 | -2.727 | -0.4% | $670.91 | $680.91 | $665.45 | 658,133 | |
| $668.18 | +11.82 | +1.8% | $659.09 | $690.00 | $659.09 | 1,254,843 | |
| $656.36 | +21.82 | +3.4% | $630.00 | $657.27 | $609.09 | 1,290,475 | |
| $634.55 | +17.27 | +2.8% | $632.73 | $644.55 | $630.91 | 704,363 | |
| $617.27 | +15.45 | +2.6% | $592.73 | $622.73 | $592.73 | 503,201 | |
| $601.82 | +10.91 | +1.8% | $579.09 | $610.91 | $573.64 | 521,835 | |
| $590.91 | +39.09 | +7.1% | $602.73 | $602.73 | $579.09 | 656,152 | |
| $551.82 | -20.00 | -3.5% | $565.45 | $583.64 | $547.27 | 903,108 |
- Ticker
- TWSE:6691
- Asset type
- Stock
- Sector
- Industrials
- Industry
- Construction & engineering
- Exchange
- TWSE
- Currency
- TWD
What changed lately
Latest news release · Jun 8, 2026
Q1 2026 saw 77% revenue growth and 45% higher net income, with strong cash flow and backlog
Latest news
Q1 2026 saw 77% revenue growth and 45% higher net income, with strong cash flow and backlog
Jun 8, 2026
Closed $579.09 (+3.2%) on Jun 9, 2026
Revenue and net income surged 47% in 2025, with strong cash flow and major customer concentration
Mar 26, 2026
Closed $538.18 (+0.3%) on Mar 27, 2026
Revenue and net income surged year-over-year, with EPS at NT$16.64 and strong cash flow
Nov 26, 2025
Closed $441.82 (-0.1%) on Nov 27, 2025
Yankey Engineering Co. Ltd. on 6ix
- Sector
- Industrials
- Industry
- Construction & engineering
- News releases
- 3 in the last 12 months · 8 in all · newest Jun 8, 2026 · oldest 2024
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