TWSE · 3518 · stock

Paragon Technologies Co., Ltd. (3518) stock price history

Every TWSE trading session of Paragon Technologies Co., Ltd. from Nov 28, 2007 to Sep 24, 2026: 4,615 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 3518 data, free keyYear by year table

3518 adjusted close, 2007 to 2026

3518Paragon Technologies Co., Ltd.
NT$34.00+48.8% over one year
2010201520202025
NT$136.39
All time high, 2007
NT$40.00
52 week high, NT$19.00 low
4,615
Daily sessions since 2007

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2007 to 2026 series and minute bars.

3518 key facts

  • Paragon Technologies Co., Ltd. (3518) closed at NT$34.00 on Sep 24, 2026 on TWSE.
  • 3518's all time high close is NT$136.39, set on Dec 7, 2007; its all time low close is NT$13.96 on Jan 14, 2019.
  • 3518's 52 week range is NT$19.00 to NT$40.00.
  • 3518 returned +48.8% over the year to Sep 24, 2026 and +41.2% over five years.
  • Over ten years 3518 returned +47%, +3.9% a year compounded.
  • 3518's deepest drawdown was -89.8% from Dec 7, 2007 to Jan 14, 2019.
  • DataCedar holds 4,615 daily sessions of 3518 history from Nov 28, 2007 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

3518 price chart, 2007 to 2026

3518 adjusted close, Nov 28, 2007 to Sep 24, 2026NT$14.10NT$51.59NT$89.08NT$126.572010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

3518 returns

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

PeriodReturn
1 month+24.1%
3 months+14.3%
6 months+55.3%
Year to date+57.4%
1 year+48.8%
3 years+0.1%
5 years+41.2%
10 years+46.9%
Since Nov 28, 2007-71.2%
Compound annual growth, 18.8 years-6.4%

3518 records

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

All time high close
NT$136.39 on Dec 7, 2007
All time low close
NT$13.96 on Jan 14, 2019
52 week high
NT$40.00 on May 6, 2026
52 week low
NT$19.00 on Mar 9, 2026
Deepest drawdown
-89.8% from Dec 7, 2007 to Jan 14, 2019, not yet recovered
Best single session
+10.0% on Jan 15, 2020
Worst single session
-10.0% on Mar 12, 2020
Volatility, 1 year annualised
53.1%
Sessions closing higher, 1 year
47%
Best calendar year
2019, +147%
Worst calendar year
2008, -71%

3518 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. 2007 starts on Nov 28, 2007; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$21.25NT$40.00NT$19.00NT$34.00+60.0%165.3M178
2025NT$25.25NT$27.20NT$14.85NT$21.25-16.3%102.7M242
2024NT$35.95NT$43.50NT$25.00NT$25.40-29.4%376.2M242
2023NT$19.23NT$47.85NT$18.88NT$36.00+87.2%219.1M239
2022NT$23.70NT$29.14NT$16.51NT$19.23-17.9%59.3M246
2021NT$32.18NT$33.54NT$17.89NT$23.42-26.4%67.6M243
2020NT$36.21NT$39.07NT$15.27NT$31.81-12.2%165M245
2019NT$14.66NT$36.63NT$13.77NT$36.21+147.0%91.8M241
2018NT$32.60NT$34.85NT$14.24NT$14.66-54.9%64.6M245
2017NT$20.14NT$47.12NT$17.43NT$32.51+59.2%166.3M243
2016NT$32.45NT$32.45NT$17.66NT$20.42-36.3%41M244
2015NT$40.90NT$53.09NT$26.95NT$32.08-21.6%58M246
2014NT$45.85NT$76.96NT$34.37NT$40.90-10.8%175.7M248
2013NT$30.16NT$48.49NT$28.74NT$45.85+52.0%69.5M244
2012NT$22.86NT$35.84NT$20.51NT$30.16+31.9%66.4M248
2011NT$43.83NT$44.05NT$20.43NT$22.86-47.8%110.4M247
2010NT$60.50NT$68.07NT$42.51NT$43.76-27.3%180.4M250
2009NT$35.56NT$77.60NT$32.19NT$60.18+69.2%477.3M249
2008NT$121.23NT$137.51NT$27.99NT$35.56-71.3%7.2B251
2007NT$115.06NT$140.88NT$104.96NT$124.04n/a22.2M24

3518 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$34.00+19.1%
August 2026NT$28.55+12.8%
July 2026NT$25.30-15.1%
June 2026NT$29.80-10.6%
May 2026NT$33.35+1.7%
April 2026NT$32.80+64.4%
March 2026NT$19.95-5.7%
February 2026NT$21.15+0.5%
January 2026NT$21.05-0.9%
December 2025NT$21.25+2.7%
November 2025NT$20.70-1.7%
October 2025NT$21.05-5.0%

About the 3518 data

Daily bars. 4,615 sessions from Nov 28, 2007 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 24, 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 Nov 28, 2007, 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/3518/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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