TWSE · 1598 · stock

Dyaco International Inc. (1598) stock price history

Every TWSE trading session of Dyaco International Inc. from Oct 3, 2012 to Sep 24, 2026: 3,407 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 1598 data, free keyYear by year table

1598 adjusted close, 2012 to 2026

1598Dyaco International Inc.
NT$20.35-7.4% over one year
2014201620182020202220242026
NT$120.85
All time high, 2020
NT$23.96
52 week high, NT$18.07 low
3,407
Daily sessions since 2012

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2012 to 2026 series and minute bars.

1598 key facts

  • Dyaco International Inc. (1598) closed at NT$20.35 on Sep 24, 2026 on TWSE.
  • 1598's all time high close is NT$120.85, set on Nov 9, 2020; its all time low close is NT$17.12 on Apr 26, 2013.
  • 1598's 52 week range is NT$18.07 to NT$23.96.
  • 1598 returned -7.4% over the year to Sep 24, 2026 and -59.8% over five years.
  • Over ten years 1598 returned -35%, -4.3% a year compounded.
  • 1598's deepest drawdown was -84.8% from Nov 9, 2020 to Mar 9, 2026.
  • DataCedar holds 3,407 daily sessions of 1598 history from Oct 3, 2012 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

1598 price chart, 2012 to 2026

1598 adjusted close, Oct 3, 2012 to Sep 24, 2026NT$17.29NT$47.14NT$76.99NT$106.8320122014201620182020202220242026
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

1598 returns

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

PeriodReturn
1 month-2.9%
3 months+7.4%
6 months+8.0%
Year to date+1.7%
1 year-7.4%
3 years-33.4%
5 years-59.8%
10 years-35.4%
Since Oct 3, 2012+0.5%
Compound annual growth, 14.0 years+0.0%

1598 records

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

All time high close
NT$120.85 on Nov 9, 2020
All time low close
NT$17.12 on Apr 26, 2013
52 week high
NT$23.96 on Oct 21, 2025
52 week low
NT$18.07 on Mar 31, 2026
Deepest drawdown
-84.8% from Nov 9, 2020 to Mar 9, 2026, not yet recovered
Best single session
+14.4% on Mar 23, 2016
Worst single session
-12.6% on Sep 20, 2016
Volatility, 1 year annualised
30.6%
Sessions closing higher, 1 year
43%
Best calendar year
2020, +191%
Worst calendar year
2021, -51%

1598 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. 2012 starts on Oct 3, 2012; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$20.07NT$21.92NT$18.07NT$20.35+0.9%59.3M178
2025NT$25.82NT$32.34NT$18.91NT$20.17-21.9%104.8M242
2024NT$31.58NT$32.85NT$24.15NT$25.82-18.4%53.6M242
2023NT$35.53NT$46.09NT$27.45NT$31.62-11.0%104.1M239
2022NT$44.84NT$46.06NT$29.94NT$35.53-19.4%86.9M246
2021NT$89.03NT$99.26NT$41.99NT$44.11-50.7%368.8M243
2020NT$30.94NT$122.74NT$22.14NT$89.41+191.1%836.2M245
2019NT$24.14NT$33.93NT$23.57NT$30.71+26.8%80.7M241
2018NT$31.31NT$31.48NT$19.09NT$24.21-23.0%55M245
2017NT$27.16NT$32.89NT$24.73NT$31.45+15.6%62.3M243
2016NT$20.73NT$40.28NT$20.40NT$27.20+31.2%28.7M243
2015NT$21.44NT$24.24NT$18.14NT$20.73-3.3%1.7M246
2014NT$20.87NT$21.66NT$17.29NT$21.44+2.7%1.4M248
2013NT$20.26NT$20.87NT$17.12NT$20.87+3.0%611.4K244
2012NT$20.26NT$20.26NT$20.26NT$20.26n/a062

1598 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$20.35+0.5%
August 2026NT$20.25+0.7%
July 2026NT$20.10+6.1%
June 2026NT$18.95-4.9%
May 2026NT$19.92-1.7%
April 2026NT$20.26+7.8%
March 2026NT$18.80+1.8%
February 2026NT$18.46-5.0%
January 2026NT$19.43-3.6%
December 2025NT$20.17-7.8%
November 2025NT$21.87-1.5%
October 2025NT$22.21+1.8%

About the 1598 data

Daily bars. 3,407 sessions from Oct 3, 2012 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 Oct 3, 2012, 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/1598/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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