TWSE · 3308 · stock

Bestec Power Electronics Co., Ltd. (3308) stock price history

Every TWSE trading session of Bestec Power Electronics Co., Ltd. from Mar 12, 2008 to Sep 24, 2026: 4,548 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 3308 data, free keyYear by year table

3308 adjusted close, 2008 to 2026

3308Bestec Power Electronics Co., Ltd.
NT$21.55+31.8% over one year
2010201520202025
NT$74.81
All time high, 2023
NT$27.50
52 week high, NT$14.30 low
4,548
Daily sessions since 2008

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2008 to 2026 series and minute bars.

3308 key facts

  • Bestec Power Electronics Co., Ltd. (3308) closed at NT$21.55 on Sep 24, 2026 on TWSE.
  • 3308's all time high close is NT$74.81, set on Sep 1, 2023; its all time low close is NT$6.47 on Mar 23, 2020.
  • 3308's 52 week range is NT$14.30 to NT$27.50.
  • 3308 returned +31.8% over the year to Sep 24, 2026 and +68.6% over five years.
  • Over ten years 3308 returned +70%, +5.4% a year compounded.
  • 3308's deepest drawdown was -88.5% from Sep 20, 2010 to Mar 23, 2020.
  • DataCedar holds 4,548 daily sessions of 3308 history from Mar 12, 2008 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

3308 price chart, 2008 to 2026

3308 adjusted close, Mar 12, 2008 to Sep 24, 2026NT$7.07NT$26.90NT$46.73NT$66.562010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

3308 returns

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

PeriodReturn
1 month+7.5%
3 months-1.1%
6 months+1.7%
Year to date+17.8%
1 year+31.8%
3 years-64.9%
5 years+68.6%
10 years+69.9%
Since Mar 12, 2008-52.2%
Compound annual growth, 18.5 years-3.9%

3308 records

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

All time high close
NT$74.81 on Sep 1, 2023
All time low close
NT$6.47 on Mar 23, 2020
52 week high
NT$27.50 on Jan 20, 2026
52 week low
NT$14.30 on Nov 11, 2025
Deepest drawdown
-88.5% from Sep 20, 2010 to Mar 23, 2020, recovered Jun 13, 2023
Best single session
+20.8% on Apr 7, 2021
Worst single session
-10.0% on May 12, 2021
Volatility, 1 year annualised
53.4%
Sessions closing higher, 1 year
40%
Best calendar year
2023, +150%
Worst calendar year
2011, -66%

3308 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. 2008 starts on Mar 12, 2008; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$21.50NT$27.50NT$18.25NT$21.55+7.2%50.9M178
2025NT$24.00NT$24.60NT$13.70NT$20.10-15.2%25.4M242
2024NT$42.54NT$47.74NT$21.20NT$23.70-44.2%94.5M242
2023NT$17.08NT$79.99NT$16.26NT$42.48+149.6%373.7M239
2022NT$19.93NT$25.86NT$12.96NT$17.02-14.6%28.1M246
2021NT$11.75NT$21.50NT$10.33NT$19.93+67.1%42.2M243
2020NT$9.44NT$13.48NT$6.29NT$11.93+22.5%6.8M245
2019NT$10.13NT$11.40NT$8.60NT$9.74-3.9%2.6M241
2018NT$13.90NT$18.29NT$10.08NT$10.13-27.1%33.8M245
2017NT$13.01NT$15.80NT$11.73NT$13.90+8.6%32.2M243
2016NT$12.35NT$16.06NT$10.43NT$12.80+1.2%14.6M244
2015NT$14.71NT$25.95NT$9.24NT$12.65-14.7%59M246
2014NT$20.51NT$26.52NT$11.58NT$14.83-27.1%74.9M248
2013NT$11.53NT$22.90NT$10.79NT$20.34+76.4%17M244
2012NT$11.32NT$16.47NT$10.02NT$11.53+1.9%8M248
2011NT$33.44NT$34.18NT$10.07NT$11.32-65.7%13.8M247
2010NT$41.92NT$60.46NT$29.73NT$32.95-22.7%66.3M250
2009NT$21.42NT$45.33NT$19.65NT$42.62+99.0%29.9M249
2008NT$41.68NT$47.67NT$15.88NT$21.42n/a140.9M208

3308 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$21.55+0.2%
August 2026NT$21.50+10.3%
July 2026NT$19.50-8.9%
June 2026NT$21.40+5.7%
May 2026NT$20.25-1.9%
April 2026NT$20.65+3.2%
March 2026NT$20.00-20.5%
February 2026NT$25.15+14.3%
January 2026NT$22.00+9.5%
December 2025NT$20.10+36.7%
November 2025NT$14.70-4.2%
October 2025NT$15.35-4.7%

About the 3308 data

Daily bars. 4,548 sessions from Mar 12, 2008 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 Mar 12, 2008, 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/3308/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

Nearby on TWSE

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  • 3305 Shenmao Technology Inc
  • 3311 Silitech Technology Corporation
  • 3312 GMI Technology Inc.
  • 3321 Uniflex Technology Inc.
  • 3338 TaiSol Electronics Co., Ltd.

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