TransAlta (TA) Stock Chart & Stock Price History C$16.76 -0.19 (-1.12%) As of 04:00 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsHeadlinesInsider TradesBuy This Stock TransAlta Stock Price Performance The TransAlta (TA) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 73.32%, with a year-to-date return of -17.56%. In the past month, the stock has increased 10.85%, reflecting recent market activity. As of the latest close, TransAlta traded at C$16.95 with a market cap of C$5.09 billion and volume of 2.42 million shares. Five years ago, the stock traded at C$8.53, representing a 96.48% increase over that period. At the time, it had a market cap of C$2.37 billion and a volume of 307,888 shares. 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Email Address 5 Day Performance+2.44%1 Month Performance+10.85%3 Month Performance+43.62%Year-To-Date Performance-17.56%1 Year Performance+73.32%5 Year Performance+96.48% TA Stock Chart for Monday, July, 21, 2025 TA Chart by TradingView TransAlta Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization07/21/2025C$16.95C$16.76-1.12%C$16.91C$16.472.58 million shsC$5.03 billion07/18/2025C$16.63C$16.95+1.92%C$17.58C$16.842.42 million shsC$5.09 billion07/17/2025C$16.36C$16.63+1.65%C$16.72C$16.231.30 million shsC$4.99 billion07/16/2025C$16.08C$16.36+1.74%C$16.52C$15.872.62 million shsC$4.91 billion07/15/2025C$15.93C$16.08+0.94%C$16.24C$15.822.33 million shsC$4.83 billion07/14/2025C$15.63C$15.93+1.92%C$16.11C$15.531.65 million shsC$4.78 billion07/11/2025C$15.31C$15.63+2.09%C$15.91C$15.111.86 million shsC$4.69 billion07/10/2025C$14.47C$15.31+5.81%C$15.34C$14.371.81 million shsC$4.60 billion07/09/2025C$14.26C$14.47+1.47%C$14.54C$14.21842,233 shsC$4.35 billion07/08/2025C$14.49C$14.26-1.59%C$14.44C$14.08965,105 shsC$4.28 billion Get the Latest News and Ratings for TA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for TransAlta and its competitors with MarketBeat's FREE daily newsletter. 07/07/2025C$14.50C$14.49-0.07%C$14.77C$14.38789,533 shsC$4.35 billion07/04/2025C$14.72C$14.50-1.49%C$14.75C$14.49316,245 shsC$4.35 billion07/03/2025C$14.44C$14.72+1.94%C$14.95C$14.351.06 million shsC$4.42 billion07/02/2025C$14.69C$14.44-1.70%C$14.68C$14.431.22 million shsC$4.34 billion07/01/2025C$14.69C$14.69C$14.86C$14.61813,689 shsC$4.41 billion06/30/2025C$14.63C$14.69+0.41%C$14.86C$14.61813,689 shsC$4.41 billion06/27/2025C$14.60C$14.63+0.21%C$14.85C$14.481.44 million shsC$4.39 billion06/26/2025C$14.91C$14.60-2.08%C$15.00C$14.57855,695 shsC$4.38 billion06/25/2025C$15.11C$14.91-1.32%C$15.16C$14.81742,177 shsC$4.48 billion06/24/2025C$15.10C$15.11+0.07%C$15.37C$15.02965,037 shsC$4.54 billion06/23/2025C$15.12C$15.10-0.13%C$15.25C$14.93901,606 shsC$4.53 billion06/20/2025C$15.25C$15.12-0.85%C$15.45C$15.103.22 million shsC$4.54 billion Related Companies EMA Stock Price Chart BEPC Stock Price Chart BIPC Stock Price Chart AQN Stock Price Chart ORA Stock Price Chart ET Stock Price Chart NOU Stock Price Chart NFG Stock Price Chart ELE Stock Price Chart HOU Stock Price Chart Receive TA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for TransAlta and its competitors with MarketBeat's FREE daily newsletter. 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