TWSE · 5434 · stock

Topco Scientific Co.,Ltd. (5434) stock price history

Every TWSE trading session of Topco Scientific Co.,Ltd. from May 25, 2000 to Sep 24, 2026: 6,545 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 5434 data, free keyYear by year table

5434 adjusted close, 2000 to 2026

5434Topco Scientific Co.,Ltd.
NT$542.00+75.5% over one year
20052010201520202025
NT$596.00
All time high, 2026
NT$602.00
52 week high, NT$279.10 low
6,545
Daily sessions since 2000

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2000 to 2026 series and minute bars.

5434 key facts

  • Topco Scientific Co.,Ltd. (5434) closed at NT$542.00 on Sep 24, 2026 on TWSE.
  • 5434's all time high close is NT$596.00, set on Jul 16, 2026; its all time low close is NT$2.35 on May 25, 2000.
  • 5434's 52 week range is NT$279.10 to NT$602.00.
  • 5434 returned +75.5% over the year to Sep 24, 2026 and +370.2% over five years.
  • Over ten years 5434 returned +935%, +26.3% a year compounded.
  • 5434's deepest drawdown was -80.1% from Aug 25, 2005 to Nov 20, 2008.
  • DataCedar holds 6,545 daily sessions of 5434 history from May 25, 2000 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

5434 price chart, 2000 to 2026

5434 adjusted close, May 25, 2000 to Sep 24, 2026NT$2.35NT$14.41NT$88.44NT$542.58200020052010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

5434 returns

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

PeriodReturn
1 month+4.0%
3 months+13.6%
6 months+74.7%
Year to date+91.8%
1 year+75.5%
3 years+257.6%
5 years+370.2%
10 years+935.3%
Since May 25, 2000+22,970%
Compound annual growth, 26.3 years+23.0%

5434 records

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

All time high close
NT$596.00 on Jul 16, 2026
All time low close
NT$2.35 on May 25, 2000
52 week high
NT$602.00 on Jul 17, 2026
52 week low
NT$279.10 on Nov 19, 2025
Deepest drawdown
-80.1% from Aug 25, 2005 to Nov 20, 2008, recovered Dec 23, 2013
Best single session
+44.0% on Jul 13, 2000
Worst single session
-15.7% on Dec 26, 2005
Volatility, 1 year annualised
42.9%
Sessions closing higher, 1 year
48%
Growth of 1 since 2000
231×
Best calendar year
2005, +142%
Worst calendar year
2008, -61%

5434 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. 2000 starts on May 25, 2000; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$284.95NT$602.00NT$283.98NT$542.00+90.9%171.9M178
2025NT$261.31NT$346.43NT$191.78NT$283.98+8.7%149.7M242
2024NT$163.69NT$306.57NT$160.99NT$261.31+59.2%251.3M242
2023NT$139.11NT$172.68NT$137.41NT$164.14+18.0%99.9M239
2022NT$128.52NT$149.01NT$110.27NT$139.11+9.6%105.4M246
2021NT$90.22NT$128.52NT$87.95NT$126.92+40.7%170.1M243
2020NT$75.40NT$98.14NT$54.03NT$90.22+19.6%232.7M245
2019NT$47.19NT$80.76NT$45.17NT$75.40+61.4%181.7M241
2018NT$51.75NT$59.21NT$40.48NT$46.72-9.4%164.1M245
2017NT$50.32NT$62.90NT$45.71NT$51.56+2.5%194M243
2016NT$30.28NT$54.14NT$28.39NT$50.32+66.2%180.8M244
2015NT$28.72NT$32.45NT$22.60NT$30.28+6.6%94.5M246
2014NT$27.95NT$31.16NT$25.24NT$28.42+2.7%160.5M248
2013NT$20.68NT$28.37NT$20.15NT$27.67+35.5%154.5M244
2012NT$16.70NT$22.61NT$16.62NT$20.42+22.3%203.4M248
2011NT$14.60NT$18.45NT$13.66NT$16.70+16.5%370.3M247
2010NT$13.10NT$15.38NT$9.93NT$14.33+11.2%386.8M250
2009NT$5.93NT$13.70NT$5.37NT$12.89+117.4%1.3B249
2008NT$15.24NT$15.37NT$5.03NT$5.93-60.7%3B251
2007NT$16.57NT$24.04NT$13.73NT$15.09-7.4%3.8B244
2006NT$20.03NT$24.10NT$12.91NT$16.30-19.7%15.3B248
2005NT$8.47NT$27.48NT$7.43NT$20.30+141.8%460.8B260
2004NT$11.40NT$11.71NT$6.85NT$8.39-26.4%117.8B262
2003NT$7.67NT$12.02NT$7.67NT$11.40+48.6%126.1B261
2002NT$7.53NT$7.67NT$7.53NT$7.67+1.9%0261
2001NT$7.43NT$7.53NT$7.43NT$7.53+1.4%0261
2000NT$2.35NT$7.43NT$2.35NT$7.43n/a163.8M157

5434 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$542.00+5.2%
August 2026NT$515.00+3.0%
July 2026NT$500.00-6.7%
June 2026NT$535.75+21.2%
May 2026NT$442.07+11.6%
April 2026NT$396.20+33.3%
March 2026NT$297.15-12.6%
February 2026NT$340.09+7.9%
January 2026NT$315.20+11.0%
December 2025NT$283.98-3.8%
November 2025NT$295.20-11.5%
October 2025NT$333.75+8.9%

About the 5434 data

Daily bars. 6,545 sessions from May 25, 2000 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 May 25, 2000, 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/5434/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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