TWSE · 3021 · stock

Welltend Technology Corporation (3021) stock price history

Every TWSE trading session of Welltend Technology Corporation from Aug 27, 2002 to Sep 24, 2026: 5,957 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 3021 data, free keyYear by year table

3021 adjusted close, 2002 to 2026

3021Welltend Technology Corporation
NT$26.95+57.0% over one year
20052010201520202025
NT$282.71
All time high, 2002
NT$40.00
52 week high, NT$14.95 low
5,957
Daily sessions since 2002

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2002 to 2026 series and minute bars.

3021 key facts

  • Welltend Technology Corporation (3021) closed at NT$26.95 on Sep 24, 2026 on TWSE.
  • 3021's all time high close is NT$282.71, set on Sep 11, 2002; its all time low close is NT$4.40 on Dec 12, 2008.
  • 3021's 52 week range is NT$14.95 to NT$40.00.
  • 3021 returned +57.0% over the year to Sep 24, 2026 and +40.4% over five years.
  • Over ten years 3021 returned +195%, +11.4% a year compounded.
  • 3021's deepest drawdown was -98.4% from Sep 17, 2002 to Dec 12, 2008.
  • DataCedar holds 5,957 daily sessions of 3021 history from Aug 27, 2002 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

3021 price chart, 2002 to 2026

3021 adjusted close, Aug 27, 2002 to Sep 24, 2026NT$4.59NT$17.23NT$64.67NT$242.7020052010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

3021 returns

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

PeriodReturn
1 month+34.1%
3 months-6.9%
6 months+73.6%
Year to date+59.7%
1 year+57.0%
3 years+25.5%
5 years+40.4%
10 years+194.7%
Since Aug 27, 2002-88.8%
Compound annual growth, 24.1 years-8.7%

3021 records

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

All time high close
NT$282.71 on Sep 11, 2002
All time low close
NT$4.40 on Dec 12, 2008
52 week high
NT$40.00 on Jun 3, 2026
52 week low
NT$14.95 on Mar 31, 2026
Deepest drawdown
-98.4% from Sep 17, 2002 to Dec 12, 2008, not yet recovered
Best single session
+28.4% on Sep 9, 2002
Worst single session
-12.8% on Oct 16, 2006
Volatility, 1 year annualised
53.7%
Sessions closing higher, 1 year
42%
Best calendar year
2009, +123%
Worst calendar year
2004, -88%

3021 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. 2002 starts on Aug 27, 2002; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$17.41NT$40.00NT$14.95NT$26.95+56.1%75M178
2025NT$25.76NT$26.94NT$14.23NT$17.26-33.0%57.3M242
2024NT$18.90NT$38.37NT$18.43NT$25.76+36.3%220.8M242
2023NT$18.22NT$28.00NT$18.22NT$18.90+4.0%84.7M239
2022NT$22.41NT$22.54NT$16.45NT$18.18-18.2%65.6M246
2021NT$13.12NT$28.43NT$11.78NT$22.24+73.3%215.1M243
2020NT$12.82NT$15.65NT$8.12NT$12.83-0.2%54.8M245
2019NT$11.22NT$13.51NT$11.10NT$12.86+14.6%23.3M241
2018NT$10.79NT$12.64NT$9.39NT$11.22+4.0%33.5M245
2017NT$8.79NT$14.78NT$8.65NT$10.79+22.2%98.3M243
2016NT$9.14NT$11.02NT$8.48NT$8.83-3.5%34.6M244
2015NT$9.47NT$10.49NT$7.10NT$9.14-3.4%30M246
2014NT$8.90NT$12.44NT$8.46NT$9.47+6.9%145.3M248
2013NT$8.82NT$9.98NT$7.23NT$8.86-1.2%36.2M244
2012NT$7.20NT$12.73NT$6.73NT$8.97+24.5%20.9M248
2011NT$8.24NT$8.82NT$6.65NT$7.20-16.7%5.7M247
2010NT$10.27NT$11.68NT$8.43NT$8.64-14.6%28.2M250
2009NT$4.55NT$11.53NT$4.48NT$10.12+122.6%22.4M249
2008NT$6.15NT$7.41NT$4.27NT$4.55-27.7%38.4M251
2007NT$7.81NT$9.04NT$5.07NT$6.29-25.0%43.6M244
2006NT$7.67NT$13.45NT$4.85NT$8.39+7.4%19.4M248
2005NT$12.73NT$15.55NT$5.64NT$7.81-38.6%14.3M260
2004NT$107.03NT$122.94NT$6.15NT$12.73-88.1%291.2M262
2003NT$154.80NT$185.63NT$81.34NT$107.03-30.9%318.4M261
2002NT$243.84NT$285.34NT$131.84NT$154.80n/a98.9M91

3021 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$26.95+33.1%
August 2026NT$20.25+0.5%
July 2026NT$20.15-32.9%
June 2026NT$30.05-0.2%
May 2026NT$30.10+75.0%
April 2026NT$17.20+13.6%
March 2026NT$15.14-10.5%
February 2026NT$16.93-2.2%
January 2026NT$17.31+0.3%
December 2025NT$17.26+3.5%
November 2025NT$16.69-1.4%
October 2025NT$16.93-1.4%

About the 3021 data

Daily bars. 5,957 sessions from Aug 27, 2002 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 Aug 27, 2002, 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/3021/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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3021 share price history

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