Stock listing
TPEx:6173 Prosperity Dielectrics Co., Ltd. (信昌電) 股價
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Share price · TPEX:6173
$270.50 TWD -27.50 (-9.2%)
Close on Oct 30, 2026
- Day range
- $268.50 – $287.50 TWDOct 30, 2026
- Volume
- 7.08M sharesOct 30, 2026
- Market cap
- $40.66B TWDAt the close on Oct 30, 2026 · price × 150.3M shares outstanding
- 52-week range
- $59.68 – $385.64 TWDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $3.37B TWDMedian day 10.43M shares · 8 days with no trades · last 3 months, Jul 30, 2026 – Oct 30, 2026

Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · TPEX:6173 · TWD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $270.50 | -27.50 | -9.2% | $282.00 | $287.50 | $268.50 | 7,081,391 | |
| $298.00 | +8.50 | +2.9% | $288.00 | $306.00 | $279.50 | 13,695,349 | |
| $289.50 | +12.50 | +4.5% | $294.00 | $296.00 | $281.50 | 7,805,594 | |
| $277.00 | -16.50 | -5.6% | $309.50 | $309.50 | $274.50 | 12,953,821 | |
| $293.50 | 0.00 | 0.0% | $293.50 | $293.50 | $293.50 | 0 | |
| $293.50 | +9.00 | +3.2% | $312.00 | $312.50 | $292.50 | 23,685,067 | |
| $284.50 | +25.50 | +9.8% | $267.00 | $284.50 | $266.50 | 8,056,881 | |
| $259.00 | -12.50 | -4.6% | $248.00 | $298.00 | $248.00 | 21,122,750 | |
| $271.50 | -30.63 | -10.1% | $271.50 | $271.50 | $271.50 | 1,481,758 | |
| $302.13 | 0.00 | 0.0% | $302.13 | $302.13 | $302.13 | 0 | |
| $302.13 | 0.00 | 0.0% | $302.13 | $302.13 | $302.13 | 0 | |
| $302.13 | 0.00 | 0.0% | $302.13 | $302.13 | $302.13 | 0 | |
| $302.13 | 0.00 | 0.0% | $302.13 | $302.13 | $302.13 | 0 | |
| $302.13 | 0.00 | 0.0% | $302.13 | $302.13 | $302.13 | 0 | |
| $302.13 | 0.00 | 0.0% | $302.13 | $302.13 | $302.13 | 0 | |
| $302.13 | -19.28 | -6.0% | $302.13 | $302.13 | $302.13 | 0 | |
| $321.41 | -9.054 | -2.7% | $331.03 | $337.82 | $321.41 | 4,791,537 | |
| $330.47 | +8.126 | +2.5% | $355.93 | $355.93 | $330.47 | 10,225,495 | |
| $322.34 | +0.532 | +0.2% | $319.15 | $343.09 | $318.09 | 21,215,112 | |
| $321.81 | +14.89 | +4.9% | $305.32 | $336.17 | $298.40 | 27,466,703 | |
| $306.91 | -9.574 | -3.0% | $320.21 | $322.87 | $306.38 | 9,501,703 | |
| $316.49 | -9.575 | -2.9% | $322.34 | $334.04 | $315.43 | 6,072,918 | |
| $326.06 | +4.255 | +1.3% | $322.34 | $334.04 | $319.68 | 10,095,719 | |
| $321.81 | -0.532 | -0.2% | $325.53 | $332.98 | $320.21 | 8,864,315 | |
| $322.34 | -5.319 | -1.6% | $351.60 | $352.13 | $319.15 | 13,682,419 | |
| $327.66 | -6.383 | -1.9% | $330.85 | $338.83 | $327.66 | 11,793,191 | |
| $334.04 | +11.17 | +3.5% | $328.72 | $334.04 | $319.15 | 16,146,655 | |
| $322.87 | -12.23 | -3.7% | $335.11 | $345.74 | $313.83 | 22,926,122 | |
| $335.11 | +21.81 | +7.0% | $323.40 | $343.62 | $313.83 | 24,612,023 | |
| $313.30 | +1.064 | +0.3% | $318.09 | $327.66 | $307.98 | 25,562,866 | |
| $312.23 | +3.723 | +1.2% | $291.49 | $323.94 | $289.89 | 22,484,354 | |
| $308.51 | -5.319 | -1.7% | $313.83 | $341.49 | $298.94 | 52,371,290 | |
| $313.83 | +28.19 | +9.9% | $285.64 | $313.83 | $282.45 | 18,901,867 | |
| $285.64 | -5.319 | -1.8% | $295.74 | $299.47 | $284.04 | 10,938,622 | |
| $290.96 | -13.83 | -4.5% | $303.19 | $303.19 | $284.57 | 15,014,185 | |
| $304.79 | +27.66 | +10.0% | $290.96 | $304.79 | $290.43 | 10,758,390 | |
| $277.13 | +20.74 | +8.1% | $276.60 | $281.91 | $270.74 | 16,135,930 | |
| $256.38 | -20.74 | -7.5% | $275.00 | $275.00 | $252.66 | 10,989,739 | |
| $277.13 | -1.064 | -0.4% | $271.28 | $280.32 | $269.68 | 8,382,309 | |
| $278.19 | +16.49 | +6.3% | $271.81 | $287.77 | $270.21 | 19,208,600 | |
| $261.70 | +7.447 | +2.9% | $257.98 | $276.06 | $250.53 | 25,011,205 | |
| $254.26 | +22.87 | +9.9% | $243.62 | $254.26 | $243.62 | 15,281,951 | |
| $231.38 | +20.74 | +9.8% | $218.09 | $231.38 | $208.51 | 9,509,625 | |
| $210.64 | -5.851 | -2.7% | $210.11 | $214.36 | $207.45 | 5,414,455 | |
| $216.49 | +0.532 | +0.2% | $213.83 | $218.09 | $202.66 | 5,644,342 | |
| $215.96 | -9.574 | -4.2% | $222.87 | $228.72 | $215.96 | 7,383,858 | |
| $225.53 | -9.574 | -4.1% | $234.57 | $241.49 | $225.00 | 17,831,566 | |
| $235.11 | +7.979 | +3.5% | $232.98 | $242.55 | $224.47 | 35,047,932 | |
| $227.13 | +20.21 | +9.8% | $202.13 | $227.13 | $201.60 | 8,651,309 | |
| $206.91 | -17.55 | -7.8% | $220.74 | $229.26 | $203.19 | 10,433,611 | |
| $224.47 | +1.064 | +0.5% | $223.40 | $244.68 | $214.36 | 16,111,912 | |
| $223.40 | -14.36 | -6.0% | $238.30 | $238.30 | $220.21 | 16,615,888 | |
| $237.77 | +21.28 | +9.8% | $220.74 | $237.77 | $216.49 | 32,159,315 | |
| $216.49 | +19.68 | +10.0% | $198.40 | $216.49 | $194.15 | 23,011,230 | |
| $196.81 | +17.55 | +9.8% | $178.72 | $196.81 | $178.72 | 16,325,599 | |
| $179.26 | +11.17 | +6.6% | $172.34 | $182.98 | $171.81 | 4,364,307 | |
| $168.09 | -13.83 | -7.6% | $180.85 | $182.98 | $165.96 | 4,825,854 | |
| $181.91 | +6.383 | +3.6% | $174.47 | $182.45 | $163.83 | 5,008,814 | |
| $175.53 | +0.532 | +0.3% | $181.91 | $189.36 | $171.81 | 12,692,725 | |
| $175.00 | +4.787 | +2.8% | $166.49 | $180.32 | $166.49 | 1,455,708 | |
| $170.21 | +15.43 | +10.0% | $154.79 | $170.21 | $154.79 | 963,287 | |
| $154.79 | +13.83 | +9.8% | $154.79 | $154.79 | $142.55 | 2,007,358 | |
| $140.96 | -15.43 | -9.9% | $140.96 | $151.60 | $140.96 | 896,926 |
- Ticker
- TPEx:6173
- Asset type
- Stock
- Sector
- Technology
- Industry
- Electronics & hardware
- Exchange
- TPEx
- Currency
- TWD
What changed lately
Latest news release · Nov 18, 2025
Prosperity Dielectrics October Net Profit +32% Y/Y
Latest news
Prosperity Dielectrics October Net Profit +32% Y/Y
Nov 18, 2025
Closed $69.04 (+1.4%) on Nov 18, 2025
Decks
Q1 2024 Earnings Presentation
Earnings · 15 slides · May 27, 2024
H1 2023 Earnings Presentation
Earnings · 14 slides · Aug 18, 2023
Prosperity Dielectrics Co., Ltd 2020 Investor Conference
Conference · 20 slides · Aug 25, 2020
Prosperity Dielectrics Co., Ltd. on 6ix
- Sector
- Technology
- Industry
- Electronics & hardware
- News releases
- 1 in the last 12 months · 1 in all · newest Nov 18, 2025 · oldest 2025
- Decks
- 3 decks · latest May 27, 2024
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