TSX · TA · stock
TransAlta Corporation (TA) stock price history
Every TSX trading session of TransAlta Corporation from Jan 12, 1995 to Sep 28, 2026: 7,969 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 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.
TA adjusted close, 1995 to 2026
- CA$24.43
- All time high, 2025
- CA$24.67
- 52 week high, CA$15.50 low
- 7,969
- Daily sessions since 1995
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 1995 to 2026 series and minute bars.
TA key facts
- TransAlta Corporation (TA) closed at CA$16.80 on Sep 28, 2026 on TSX.
- TA's all time high close is CA$24.43, set on Oct 31, 2025; its all time low close is CA$3.07 on Jan 15, 2016.
- TA's 52 week range is CA$15.50 to CA$24.67.
- TA returned -10.2% over the year to Sep 28, 2026 and +41.8% over five years.
- Over ten years TA returned +240%, +13.0% a year compounded.
- TA's deepest drawdown was -84.1% from Aug 26, 2008 to Jan 15, 2016.
- DataCedar holds 7,969 daily sessions of TA history from Jan 12, 1995 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
TA price chart, 1995 to 2026
TA returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -0.5% |
| 3 months | -13.8% |
| 6 months | -5.8% |
| Year to date | -2.0% |
| 1 year | -10.2% |
| 3 years | +49.7% |
| 5 years | +41.8% |
| 10 years | +239.9% |
| Since Jan 12, 1995 | +356.6% |
| Compound annual growth, 31.7 years | +4.9% |
TA records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- CA$24.43 on Oct 31, 2025
- All time low close
- CA$3.07 on Jan 15, 2016
- 52 week high
- CA$24.67 on Nov 3, 2025
- 52 week low
- CA$15.50 on Mar 23, 2026
- Deepest drawdown
- -84.1% from Aug 26, 2008 to Jan 15, 2016, recovered Dec 17, 2024
- Best single session
- +19.4% on Mar 25, 2020
- Worst single session
- -20.6% on Jan 27, 2025
- Volatility, 1 year annualised
- 39.6%
- Sessions closing higher, 1 year
- 50%
- Growth of 1 since 1995
- 4.6×
- Best calendar year
- 2024, +88%
- Worst calendar year
- 2015, -49%
TA 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. 1995 starts on Jan 12, 1995; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | CA$17.19 | CA$20.98 | CA$15.50 | CA$16.80 | -2.1% | 310.9M | 186 |
| 2025 | CA$19.93 | CA$24.67 | CA$10.90 | CA$17.16 | -13.2% | 428.5M | 251 |
| 2024 | CA$10.43 | CA$20.41 | CA$7.88 | CA$19.78 | +88.5% | 286.1M | 252 |
| 2023 | CA$11.32 | CA$13.18 | CA$9.50 | CA$10.50 | -7.3% | 166.1M | 250 |
| 2022 | CA$13.52 | CA$14.17 | CA$9.79 | CA$11.32 | -12.4% | 194.8M | 250 |
| 2021 | CA$8.74 | CA$13.39 | CA$8.67 | CA$12.93 | +47.6% | 145.4M | 251 |
| 2020 | CA$8.29 | CA$10.02 | CA$4.75 | CA$8.76 | +5.8% | 196.7M | 252 |
| 2019 | CA$4.89 | CA$8.93 | CA$4.82 | CA$8.28 | +69.1% | 150.3M | 251 |
| 2018 | CA$6.38 | CA$6.88 | CA$4.77 | CA$4.90 | -23.2% | 143.4M | 251 |
| 2017 | CA$6.18 | CA$7.20 | CA$5.80 | CA$6.38 | +2.4% | 135.2M | 250 |
| 2016 | CA$3.93 | CA$6.42 | CA$2.94 | CA$6.23 | +55.2% | 239.9M | 251 |
| 2015 | CA$7.92 | CA$9.48 | CA$3.35 | CA$4.01 | -49.0% | 310.3M | 251 |
| 2014 | CA$9.66 | CA$10.73 | CA$7.20 | CA$7.86 | -18.6% | 203.4M | 251 |
| 2013 | CA$10.11 | CA$11.20 | CA$8.80 | CA$9.66 | -3.6% | 176.6M | 251 |
| 2012 | CA$13.12 | CA$13.32 | CA$9.08 | CA$10.02 | -23.0% | 211.3M | 251 |
| 2011 | CA$12.43 | CA$14.31 | CA$11.60 | CA$13.01 | +4.9% | 151.9M | 250 |
| 2010 | CA$13.12 | CA$13.34 | CA$11.00 | CA$12.40 | -5.0% | 177.5M | 251 |
| 2009 | CA$12.63 | CA$13.99 | CA$9.58 | CA$13.05 | +2.1% | 201.8M | 251 |
| 2008 | CA$16.94 | CA$19.65 | CA$10.39 | CA$12.78 | -24.6% | 266.3M | 252 |
| 2007 | CA$13.07 | CA$17.49 | CA$11.69 | CA$16.94 | +29.6% | 211.7M | 252 |
| 2006 | CA$11.92 | CA$13.11 | CA$10.41 | CA$13.07 | +9.2% | 157.7M | 251 |
| 2005 | CA$8.09 | CA$12.55 | CA$8.04 | CA$11.96 | +47.6% | 134.6M | 251 |
| 2004 | CA$7.84 | CA$8.42 | CA$6.55 | CA$8.11 | +3.3% | 127.2M | 253 |
| 2003 | CA$6.90 | CA$8.13 | CA$6.31 | CA$7.85 | +14.4% | 132.8M | 252 |
| 2002 | CA$8.28 | CA$9.24 | CA$6.68 | CA$6.86 | -16.8% | 114M | 252 |
| 2001 | CA$8.06 | CA$11.26 | CA$7.02 | CA$8.24 | +2.3% | 125.7M | 251 |
| 2000 | CA$4.93 | CA$8.24 | CA$4.56 | CA$8.06 | +64.8% | 100.1M | 251 |
| 1999 | CA$7.36 | CA$8.35 | CA$4.23 | CA$4.89 | -34.3% | 115.9M | 252 |
| 1998 | CA$7.10 | CA$8.16 | CA$5.85 | CA$7.44 | +4.8% | 82.2M | 252 |
| 1997 | CA$5.06 | CA$7.19 | CA$4.56 | CA$7.10 | +38.3% | 103.8M | 252 |
| 1996 | CA$4.22 | CA$5.33 | CA$4.15 | CA$5.13 | +22.5% | 65.5M | 253 |
| 1995 | CA$3.71 | CA$4.26 | CA$3.48 | CA$4.19 | n/a | 53.3M | 244 |
TA monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | CA$16.80 | +0.6% |
| August 2026 | CA$16.70 | -4.5% |
| July 2026 | CA$17.49 | -10.5% |
| June 2026 | CA$19.54 | +0.2% |
| May 2026 | CA$19.50 | +16.1% |
| April 2026 | CA$16.80 | -7.4% |
| March 2026 | CA$18.15 | -2.5% |
| February 2026 | CA$18.61 | +8.2% |
| January 2026 | CA$17.20 | +0.2% |
| December 2025 | CA$17.16 | -14.3% |
| November 2025 | CA$20.03 | -18.0% |
| October 2025 | CA$24.43 | +30.4% |
About the TA data
Daily bars. 7,969 sessions from Jan 12, 1995 to Sep 28, 2026, one row per TSX 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 17, 2026 forward, most recent session Sep 28, 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 TSX trading days; minute timestamps are UTC. Prices are in CAD. 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 Jan 12, 1995, 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/TA/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on TSX
Common questions
TA share price history
