NYSE · TAC · stock

Transalta Corp. (TAC) stock price history

Every NYSE trading session of Transalta Corp. from Jul 31, 2001 to Nov 12, 2026: 6,345 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 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.

TAC adjusted close, 2001 to 2026

TACTransalta Corp.
$13.28-12.7% over one year
20052010201520202025
$19.31
All time high, 2008
$15.59
52 week high, $11.38 low
6,345
Daily sessions since 2001

Last updated Nov 12, 2026, the last stored session. Refreshes after each trading day. Full 2001 to 2026 series and minute bars.

TAC key facts

  • Transalta Corp. (TAC) closed at $13.28 on Nov 12, 2026 on NYSE.
  • TAC's all time high close is $19.31, set on Jul 21, 2008; its all time low close is $2.15 on Jan 15, 2016.
  • TAC's 52 week range is $11.38 to $15.59.
  • TAC returned -12.7% over the year to Nov 12, 2026 and +32.8% over five years.
  • Over ten years TAC returned +298%, +14.8% a year compounded.
  • TAC's deepest drawdown was -88.9% from Jul 21, 2008 to Jan 15, 2016.
  • DataCedar holds 6,345 daily sessions of TAC history from Jul 31, 2001 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.

TAC price chart, 2001 to 2026

TAC adjusted close, Jul 31, 2001 to Nov 12, 2026$2.22$7.52$12.81$18.1020052010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

TAC returns

Price return from the last close on or before the window start to Nov 12, 2026, on adjusted closes.

PeriodReturn
1 month+2.2%
3 months+7.1%
6 months+5.6%
Year to date+5.3%
1 year-12.7%
3 years+67.8%
5 years+32.8%
10 years+298.5%
Since Jul 31, 2001+135.0%
Compound annual growth, 25.3 years+3.4%

TAC records

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

All time high close
$19.31 on Jul 21, 2008
All time low close
$2.15 on Jan 15, 2016
52 week high
$15.59 on Nov 12, 2025
52 week low
$11.38 on Mar 23, 2026
Deepest drawdown
-88.9% from Jul 21, 2008 to Jan 15, 2016, not yet recovered
Best single session
+24.7% on Nov 25, 2016
Worst single session
-20.6% on Jan 27, 2025
Volatility, 1 year annualised
39.0%
Sessions closing higher, 1 year
47%
Growth of 1 since 2001
2.4×
Best calendar year
2019, +77%
Worst calendar year
2015, -57%

TAC 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. 2001 starts on Jul 31, 2001; 2026 runs to Nov 12, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026$12.74$14.85$11.38$13.28+5.5%351.2M218
2025$13.90$17.81$7.72$12.59-9.5%405.2M250
2024$7.95$14.40$5.76$13.92+74.0%203.7M252
2023$8.41$9.92$6.92$8.00-5.6%99.3M250
2022$10.44$11.29$7.11$8.48-18.0%84.2M251
2021$6.96$10.94$6.88$10.35+48.8%54.1M252
2020$6.40$7.64$3.28$6.95+8.1%90M253
2019$3.60$6.74$3.58$6.43+77.0%41.9M252
2018$5.11$5.31$3.52$3.63-29.5%7.7M251
2017$4.67$5.66$4.27$5.16+10.5%8.8M251
2016$2.93$4.95$2.10$4.67+59.4%23.6M251
2015$6.84$7.96$2.47$2.93-57.3%46.6M250
2014$9.21$9.91$6.27$6.85-25.5%36.5M252
2013$10.38$11.40$8.45$9.19-10.0%26.1M252
2012$13.06$13.43$9.15$10.21-20.9%22.8M250
2011$12.67$14.26$11.88$12.91+2.6%11.7M250
2010$12.57$13.08$10.00$12.57+0.6%12.2M250
2009$10.60$12.75$7.47$12.50+17.6%12.4M252
2008$17.25$19.72$8.48$10.63-38.2%20.9M248
2007$11.32$18.87$10.01$17.18+52.3%11.1M249
2006$10.33$11.43$9.00$11.28+8.6%5.6M251
2005$6.83$10.85$6.55$10.39+52.0%5.8M251
2004$6.01$6.94$5.10$6.83+14.1%3.5M252
2003$4.26$6.08$4.09$5.99+40.9%1.7M252
2002$4.96$5.64$4.06$4.25-14.9%1.4M252
2001$5.80$5.84$4.64$4.99n/a749.7K103

TAC monthly closes, last 12 months

MonthMonth end closeChange
November 2026$13.28+2.3%
October 2026$12.98+7.5%
September 2026$12.08+0.3%
August 2026$12.04-3.7%
July 2026$12.50-9.6%
June 2026$13.83-2.7%
May 2026$14.22+13.9%
April 2026$12.48-4.7%
March 2026$13.10-4.7%
February 2026$13.74+7.9%
January 2026$12.73+1.1%
December 2025$12.59-13.1%

About the TAC data

Daily bars. 6,345 sessions from Jul 31, 2001 to Nov 12, 2026, one row per NYSE 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 Jul 13, 2026 forward, most recent session Oct 23, 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 NYSE trading days; minute timestamps are UTC. Prices are in USD. 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 Jul 31, 2001, 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/nyse%3ATAC/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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Common questions

TAC share price history

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