TransAlta - 15 Year Stock Price History | TAC
Historical daily share price chart and data for TransAlta since 2011 adjusted for splits and dividends. The latest closing stock price for TransAlta as of September 15, 2026 is 11.50.
- The all-time high TransAlta stock closing price was 17.47 on October 29, 2025.
- The TransAlta 52-week high stock price is 17.88, which is 55.5% above the current share price.
- The TransAlta 52-week low stock price is 11.38, which is 1% below the current share price.
- The average TransAlta stock price for the last 52 weeks is 13.51.
| TransAlta Historical Annual Stock Price Data | ||||||
|---|---|---|---|---|---|---|
| Year | Average Stock Price | Year Open | Year High | Year Low | Year Close | Annual % Change |
| 2026 | 12.8959 | 12.8710 | 14.4587 | 11.5000 | 11.5000 | -7.97% |
| 2025 | 11.7652 | 13.6990 | 17.4711 | 7.9721 | 12.4953 | -9.24% |
| 2024 | 8.1383 | 7.8760 | 13.9422 | 5.8083 | 13.7671 | 73.96% |
| 2023 | 8.4813 | 8.3221 | 9.7950 | 6.9367 | 7.9141 | -5.64% |
| 2022 | 9.3952 | 10.7938 | 10.8836 | 7.2512 | 8.3875 | -18.03% |
| 2021 | 9.0116 | 6.9397 | 10.6248 | 6.9397 | 10.2325 | 48.81% |
| 2020 | 5.7093 | 6.2392 | 7.5545 | 3.3913 | 6.8762 | 8.06% |
| 2019 | 5.5664 | 3.6467 | 6.5656 | 3.6467 | 6.3636 | 77.05% |
| 2018 | 4.6390 | 5.0738 | 5.1343 | 3.5769 | 3.5943 | -29.16% |
| 2017 | 4.9428 | 4.5901 | 5.5272 | 4.2806 | 5.0738 | 10.54% |
| 2016 | 3.7920 | 2.8472 | 4.7570 | 2.1151 | 4.5901 | 59.39% |
| 2015 | 5.3465 | 6.7816 | 7.7371 | 2.4405 | 2.8798 | -57.25% |
| 2014 | 8.1440 | 8.8782 | 9.5730 | 6.2462 | 6.7370 | -24.30% |
| 2013 | 9.4703 | 10.0717 | 11.0386 | 8.3445 | 8.8992 | -10.02% |
| 2012 | 10.6055 | 12.8194 | 12.9663 | 9.0539 | 9.8900 | -20.87% |
| Sector | Industry | Market Cap | Revenue |
|---|---|---|---|
| Utilities | Utility - Electric Power Distribution | $3.726B | $1.721B |
| TransAlta is Canada's largest non-regulated electric generation and marketing company. | |||
| Stock Name | Country | Market Cap | PE Ratio |
|---|---|---|---|
| NextEra Energy (NEE) | United States | $170.278B | 20.88 |
| Iberdrola S.A (IBDRY) | Spain | $152.515B | 22.24 |
| Enel SpA (ENLAY) | Italy | $102.582B | 15.06 |
| Southern (SO) | United States | $100.082B | 18.91 |
| Duke Energy (DUK) | United States | $92.800B | 17.84 |
| ENGIE - (ENGIY) | France | $69.307B | 0.00 |
| American Electric Power (AEP) | United States | $66.542B | 20.41 |
| Dominion Energy (D) | United States | $56.694B | 18.52 |
| E.ON SE (EONGY) | Germany | $52.103B | 14.87 |
| Entergy (ETR) | United States | $48.362B | 26.37 |
| RWE AG (RWEOY) | Germany | $48.263B | 17.87 |
| Vistra (VST) | United States | $47.234B | 16.36 |
| Xcel Energy (XEL) | United States | $46.323B | 18.36 |
| Exelon (EXC) | United States | $44.098B | 15.31 |
| Consolidated Edison Inc (ED) | United States | $39.120B | 18.27 |
| Pacific Gas & Electric (PCG) | United States | $36.450B | 8.05 |
| Public Service Enterprise Group (PEG) | United States | $35.348B | 16.65 |
| WEC Energy (WEC) | United States | $34.270B | 18.75 |
| AXIA Energia (AXIAY) | Brazil | $30.436B | 16.29 |
| AXIA Energia (AXIA) | Brazil | $28.935B | 15.48 |
| Ameren (AEE) | United States | $28.783B | 19.40 |
| Fortis (FTS) | Canada | $27.773B | 21.46 |
| DTE Energy (DTE) | United States | $27.287B | 18.29 |
| FirstEnergy (FE) | United States | $26.519B | 17.76 |
| Eversource Energy (ES) | United States | $25.738B | 13.92 |
| CenterPoint Energy (CNP) | United States | $25.460B | 20.24 |
| PPL (PPL) | United States | $25.428B | 18.26 |
| CLP Holdings (CLPHY) | Hong Kong, SAR China | $25.265B | 0.00 |
| NRG Energy (NRG) | United States | $22.886B | 16.07 |
| Hydro One (HRNNF) | Canada | $21.967B | 21.41 |
| Edison (EIX) | United States | $21.600B | 7.83 |
| CMS Energy (CMS) | United States | $20.953B | 19.77 |
| Terna Rete Elettrica Nazionale SpA (TEZNY) | Italy | $20.810B | 0.00 |
| NiSource (NI) | United States | $19.696B | 21.39 |
| Evergy (EVRG) | United States | $18.644B | 20.11 |
| Alliant Energy (LNT) | United States | $17.351B | 20.98 |
| Power Assets Holdings (HGKGY) | Hong Kong, SAR China | $16.985B | 0.00 |
| Korea Electric Power (KEP) | South Korea | $14.842B | 2.42 |
| United Utilities Group (UUGRY) | United Kingdom | $13.271B | 0.00 |
| China Resources Power Holdings (CRPJY) | Hong Kong, SAR China | $12.318B | 0.00 |
| Pinnacle West Capital (PNW) | United States | $11.562B | 18.28 |
| AES (AES) | United States | $10.559B | 5.54 |
| OGE Energy (OGE) | United States | $9.550B | 20.37 |
| Companhia Paranaense De Energia - Copel (ELPC) | $9.199B | 22.89 | |
| Brookfield Renewable Partners (BEP) | Bermuda | $8.832B | 0.00 |
| IDACORP (IDA) | United States | $7.747B | 22.17 |
| ENGIE BRASL EGA (EGIEY) | Brazil | $6.877B | 12.97 |
| Comp En De Mn Cemig ADS (CIG) | Brazil | $6.153B | 0.00 |
| Enel Chile S.A (ENIC) | Chile | $5.962B | 10.26 |
| Portland General Electric (POR) | United States | $5.655B | 17.87 |
| Companhia Paranaense De Energia (COPEL) (ELP) | Brazil | $5.520B | 84.27 |
| Black Hills (BKH) | United States | $5.385B | 16.85 |
| Pampa Energia S.A (PAM) | Argentina | $4.657B | 8.23 |
| NorthWestern (NWE) | United States | $4.223B | 18.21 |
| Algonquin Power & Utilities (AQN) | Canada | $4.119B | 16.72 |
| Allete (ALE) | United States | $3.945B | 23.02 |
| Otter Tail (OTTR) | United States | $3.678B | 13.52 |
| Kenon Holdings (KEN) | Singapore | $3.351B | 0.00 |
| Versigent (VGNT) | Switzerland | $3.264B | 0.00 |
| Avista (AVA) | United States | $3.070B | 13.94 |
| MGE Energy (MGEE) | United States | $2.876B | 18.70 |
| Centuri Holdings (CTRI) | United States | $1.976B | 39.14 |
| Hawaiian Electric Industries (HE) | United States | $1.789B | 14.00 |
| Empresa Distribuidora Y Comercializadora Norte S.A (Edenor) (EDN) | Argentina | $1.103B | 5.82 |
| Unitil (UTL) | United States | $0.960B | 15.81 |
| Ballard Power Systems (BLDP) | Canada | $0.758B | 0.00 |
| Genie Energy (GNE) | United States | $0.418B | 0.00 |
| Polar Power (POLA) | United States | $0.006B | 0.00 |
| Great Plains Energy Inc (GXP) | United States | $0.000B | 0.00 |
| Eletrobras (EBR.B) | Brazil | $0.000B | 0.00 |