TWSE · 9955 · stock

Super Dragon Technology Co., Ltd (9955) stock price history

Every TWSE trading session of Super Dragon Technology Co., Ltd from Jan 21, 2008 to Sep 24, 2026: 4,578 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 9955 data, free keyYear by year table

9955 adjusted close, 2008 to 2026

9955Super Dragon Technology Co., Ltd
NT$23.00-22.7% over one year
2010201520202025
NT$70.04
All time high, 2008
NT$41.55
52 week high, NT$21.90 low
4,578
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.

9955 key facts

  • Super Dragon Technology Co., Ltd (9955) closed at NT$23.00 on Sep 24, 2026 on TWSE.
  • 9955's all time high close is NT$70.04, set on May 19, 2008; its all time low close is NT$10.90 on Mar 19, 2020.
  • 9955's 52 week range is NT$21.90 to NT$41.55.
  • 9955 returned -22.7% over the year to Sep 24, 2026 and +37.7% over five years.
  • Over ten years 9955 returned +29%, +2.6% a year compounded.
  • 9955's deepest drawdown was -84.4% from May 19, 2008 to Mar 19, 2020.
  • DataCedar holds 4,578 daily sessions of 9955 history from Jan 21, 2008 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

9955 price chart, 2008 to 2026

9955 adjusted close, Jan 21, 2008 to Sep 24, 2026NT$11.95NT$30.61NT$49.26NT$67.922010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

9955 returns

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

PeriodReturn
1 month-8.9%
3 months-14.3%
6 months-25.6%
Year to date-26.0%
1 year-22.7%
3 years+5.3%
5 years+37.7%
10 years+28.9%
Since Jan 21, 2008-54.7%
Compound annual growth, 18.7 years-4.2%

9955 records

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

All time high close
NT$70.04 on May 19, 2008
All time low close
NT$10.90 on Mar 19, 2020
52 week high
NT$41.55 on Jan 15, 2026
52 week low
NT$21.90 on Jul 30, 2026
Deepest drawdown
-84.4% from May 19, 2008 to Mar 19, 2020, not yet recovered
Best single session
+10.0% on Jan 5, 2023
Worst single session
-10.0% on Jul 1, 2019
Volatility, 1 year annualised
40.2%
Sessions closing higher, 1 year
43%
Best calendar year
2009, +110%
Worst calendar year
2011, -40%

9955 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 Jan 21, 2008; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$30.65NT$41.55NT$21.90NT$23.00-24.6%188M178
2025NT$28.45NT$36.00NT$21.50NT$30.50+7.0%390.6M242
2024NT$24.65NT$42.10NT$22.90NT$28.50+16.8%588.5M242
2023NT$19.90NT$29.55NT$19.85NT$24.40+23.2%385.5M239
2022NT$17.35NT$35.50NT$16.35NT$19.80+14.8%578.6M246
2021NT$19.80NT$26.25NT$16.00NT$17.25-12.7%127.2M243
2020NT$18.95NT$23.50NT$10.90NT$19.75+4.5%222.3M245
2019NT$12.25NT$23.20NT$11.80NT$18.90+56.2%398M241
2018NT$15.10NT$16.80NT$11.55NT$12.10-19.9%27M245
2017NT$15.80NT$18.15NT$12.80NT$15.10-4.4%29.5M243
2016NT$12.40NT$19.85NT$11.45NT$15.80+25.9%51.1M244
2015NT$18.35NT$20.45NT$11.05NT$12.55-31.6%23M246
2014NT$21.15NT$24.55NT$16.90NT$18.35-13.2%28.6M248
2013NT$28.97NT$29.36NT$18.97NT$21.15-26.7%22.8M244
2012NT$27.59NT$34.59NT$21.92NT$28.87+4.6%36.7M248
2011NT$45.87NT$46.77NT$26.16NT$27.59-39.5%55.9M247
2010NT$53.72NT$56.14NT$41.18NT$45.61-15.0%143M250
2009NT$25.58NT$59.07NT$22.55NT$53.64+109.7%828.7M249
2008NT$49.78NT$70.51NT$22.80NT$25.58n/a2.5B238

9955 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$23.00-5.0%
August 2026NT$24.20+6.1%
July 2026NT$22.80-13.6%
June 2026NT$26.40-5.5%
May 2026NT$27.95-3.3%
April 2026NT$28.90-6.2%
March 2026NT$30.80-8.3%
February 2026NT$33.60-5.9%
January 2026NT$35.70+17.0%
December 2025NT$30.50+0.7%
November 2025NT$30.30+7.1%
October 2025NT$28.30-8.4%

About the 9955 data

Daily bars. 4,578 sessions from Jan 21, 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 Jan 21, 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/9955/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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