TWSE · 3617 · stock

Cyber Power Systems, Inc. (3617) stock price history

Every TWSE trading session of Cyber Power Systems, Inc. from Dec 23, 2009 to Sep 24, 2026: 4,098 daily bars, adjusted for splits and dividends, with minute bars from Sep 15, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.

Get 3617 data, free keyYear by year table

3617 adjusted close, 2009 to 2026

3617Cyber Power Systems, Inc.
NT$242.50+18.1% over one year
201520202025
NT$355.75
All time high, 2024
NT$267.50
52 week high, NT$158.68 low
4,098
Daily sessions since 2009

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2009 to 2026 series and minute bars.

3617 key facts

  • Cyber Power Systems, Inc. (3617) closed at NT$242.50 on Sep 24, 2026 on TWSE.
  • 3617's all time high close is NT$355.75, set on Dec 26, 2024; its all time low close is NT$17.97 on Dec 9, 2011.
  • 3617's 52 week range is NT$158.68 to NT$267.50.
  • 3617 returned +18.1% over the year to Sep 24, 2026 and +295.0% over five years.
  • Over ten years 3617 returned +246%, +13.2% a year compounded.
  • 3617's deepest drawdown was -73.2% from Aug 10, 2011 to Dec 9, 2011.
  • DataCedar holds 4,098 daily sessions of 3617 history from Dec 23, 2009 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

3617 price chart, 2009 to 2026

3617 adjusted close, Dec 23, 2009 to Sep 24, 2026NT$19.21NT$49.53NT$127.68NT$329.152010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

3617 returns

Price return from the last close on or before the window start to Sep 24, 2026, on adjusted closes.

PeriodReturn
1 month-5.8%
3 months+20.0%
6 months+48.4%
Year to date+20.0%
1 year+18.1%
3 years+4.3%
5 years+295.0%
10 years+245.9%
Since Dec 23, 2009+307.8%
Compound annual growth, 16.8 years+8.8%

3617 records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close
NT$355.75 on Dec 26, 2024
All time low close
NT$17.97 on Dec 9, 2011
52 week high
NT$267.50 on Aug 21, 2026
52 week low
NT$158.68 on Apr 7, 2026
Deepest drawdown
-73.2% from Aug 10, 2011 to Dec 9, 2011, recovered Nov 18, 2015
Best single session
+10.0% on Jan 12, 2016
Worst single session
-10.0% on Sep 12, 2016
Volatility, 1 year annualised
37.9%
Sessions closing higher, 1 year
48%
Growth of 1 since 2009
4.1×
Best calendar year
2023, +132%
Worst calendar year
2010, -49%

3617 price history by year

Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2009 starts on Dec 23, 2009; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$201.56NT$267.50NT$158.68NT$242.50+20.3%78.8M178
2025NT$349.89NT$354.40NT$180.60NT$201.56-42.5%121.7M242
2024NT$176.58NT$362.06NT$159.97NT$350.34+97.4%287.6M242
2023NT$76.63NT$264.86NT$75.16NT$177.45+131.6%471.3M239
2022NT$55.68NT$98.63NT$46.68NT$76.63+37.6%83.5M246
2021NT$67.84NT$67.84NT$54.80NT$55.68-16.8%16.4M243
2020NT$78.55NT$82.44NT$47.84NT$66.93-13.2%49.6M245
2019NT$51.00NT$86.68NT$50.33NT$77.13+49.1%45.6M241
2018NT$62.95NT$65.23NT$45.51NT$51.73-17.9%14.9M245
2017NT$60.06NT$76.00NT$53.80NT$63.01+5.2%38.7M243
2016NT$58.48NT$81.54NT$49.86NT$59.88+1.9%126.8M244
2015NT$34.65NT$76.14NT$29.30NT$58.77+68.6%104.5M246
2014NT$39.93NT$43.35NT$29.94NT$34.87-12.3%41.2M248
2013NT$24.76NT$41.62NT$24.52NT$39.78+61.0%68M244
2012NT$22.85NT$29.73NT$20.10NT$24.71+8.1%47.4M248
2011NT$28.95NT$69.45NT$17.62NT$22.85-20.9%209.7M247
2010NT$56.55NT$56.96NT$26.69NT$28.91-48.5%91.9M250
2009NT$54.47NT$61.95NT$52.81NT$56.13n/a11.5M7

3617 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$242.50-4.5%
August 2026NT$254.00+17.6%
July 2026NT$216.00+6.4%
June 2026NT$202.99+0.7%
May 2026NT$201.56+13.4%
April 2026NT$177.74+11.0%
March 2026NT$160.11-13.8%
February 2026NT$185.84+6.8%
January 2026NT$173.93-13.7%
December 2025NT$201.56+4.2%
November 2025NT$193.46-15.2%
October 2025NT$228.25+14.6%

About the 3617 data

Daily bars. 4,098 sessions from Dec 23, 2009 to Sep 24, 2026, one row per TWSE trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.

Minute bars. Stored from Sep 15, 2026 forward, most recent session Sep 29, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.

Time and currency. Session dates are TWSE trading days; minute timestamps are UTC. Prices are in TWD. Volume is shares traded on the session.

Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Dec 23, 2009, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.

curl "https://api.datacedar.com/v3/stocks/3617/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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