TWSE · 6581 · stock

Taiwan Steel Union Co., Ltd. (6581) stock price history

Every TWSE trading session of Taiwan Steel Union Co., Ltd. from Sep 12, 2016 to Sep 24, 2026: 2,441 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 6581 data, free keyYear by year table

6581 adjusted close, 2016 to 2026

6581Taiwan Steel Union Co., Ltd.
NT$108.50+4.0% over one year
20182020202220242026
NT$113.00
All time high, 2026
NT$115.00
52 week high, NT$98.10 low
2,441
Daily sessions since 2016

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2016 to 2026 series and minute bars.

6581 key facts

  • Taiwan Steel Union Co., Ltd. (6581) closed at NT$108.50 on Sep 24, 2026 on TWSE.
  • 6581's all time high close is NT$113.00, set on Jun 1, 2026; its all time low close is NT$32.59 on Mar 19, 2020.
  • 6581's 52 week range is NT$98.10 to NT$115.00.
  • 6581 returned +4.0% over the year to Sep 24, 2026 and +88.4% over five years.
  • Over ten years 6581 returned +219%, +12.3% a year compounded.
  • 6581's deepest drawdown was -66.6% from Dec 27, 2017 to Mar 19, 2020.
  • DataCedar holds 2,441 daily sessions of 6581 history from Sep 12, 2016 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

6581 price chart, 2016 to 2026

6581 adjusted close, Sep 12, 2016 to Sep 24, 2026NT$33.76NT$59.67NT$85.59NT$111.50201620182020202220242026
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

6581 returns

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

PeriodReturn
1 month0.0%
3 months+1.4%
6 months+2.6%
Year to date+7.5%
1 year+4.0%
3 years+41.2%
5 years+88.4%
10 years+219.3%
Since Sep 12, 2016+215.3%
Compound annual growth, 10.0 years+12.1%

6581 records

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

All time high close
NT$113.00 on Jun 1, 2026
All time low close
NT$32.59 on Mar 19, 2020
52 week high
NT$115.00 on Jun 1, 2026
52 week low
NT$98.10 on Jan 6, 2026
Deepest drawdown
-66.6% from Dec 27, 2017 to Mar 19, 2020, recovered May 21, 2024
Best single session
+29.8% on Jan 31, 2018
Worst single session
-10.0% on Apr 7, 2025
Volatility, 1 year annualised
14.3%
Sessions closing higher, 1 year
34%
Growth of 1 since 2016
3.2×
Best calendar year
2017, +71%
Worst calendar year
2018, -39%

6581 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. 2016 starts on Sep 12, 2016; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$99.06NT$115.00NT$98.10NT$108.50+7.5%3.8M178
2025NT$104.06NT$113.56NT$88.58NT$100.96-3.0%7.5M242
2024NT$76.90NT$113.56NT$75.78NT$104.06+31.6%18.6M242
2023NT$74.67NT$89.20NT$73.62NT$79.06+6.5%11.6M239
2022NT$62.68NT$96.47NT$60.55NT$74.27+18.9%61.5M246
2021NT$56.61NT$66.31NT$48.73NT$62.45+11.0%32.5M243
2020NT$58.93NT$59.88NT$31.24NT$56.24-4.8%15.5M245
2019NT$57.18NT$70.29NT$55.76NT$59.07+3.3%9.7M241
2018NT$88.76NT$97.98NT$56.50NT$57.18-39.5%54.6M245
2017NT$51.87NT$102.46NT$45.22NT$94.46+71.4%6.6M243
2016NT$34.41NT$60.08NT$32.88NT$55.12n/a996K77

6581 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$108.500.0%
August 2026NT$108.50-0.5%
July 2026NT$109.00+1.9%
June 2026NT$107.00-0.9%
May 2026NT$108.00+0.5%
April 2026NT$107.50+0.9%
March 2026NT$106.50+0.7%
February 2026NT$105.72+3.7%
January 2026NT$101.91+0.9%
December 2025NT$100.96-4.1%
November 2025NT$105.25+0.5%
October 2025NT$104.77-0.5%

About the 6581 data

Daily bars. 2,441 sessions from Sep 12, 2016 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 Sep 12, 2016, 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/6581/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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