AltaGas (ALA) Stock Chart & Stock Price History C$38.57 -0.09 (-0.23%) As of 11:13 AM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsHeadlinesInsider TradesBuy This Stock AltaGas Stock Price Performance The AltaGas (ALA) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 24.46%, with a year-to-date return of 15.20%. In the past month, the stock has increased 2.96%, reflecting recent market activity. As of the latest close, AltaGas traded at C$38.66 with a market cap of C$11.51 billion and volume of 396,358 shares. Five years ago, the stock traded at C$15.08, representing a 155.77% increase over that period. At the time, it had a market cap of C$4.33 billion and a volume of 1.42 million shares. 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Email Address 5 Day Performance+1.15%1 Month Performance+2.96%3 Month Performance+1.05%Year-To-Date Performance+15.20%1 Year Performance+24.46%5 Year Performance+155.77% ALA Stock Chart for Thursday, June, 12, 2025 ALA Chart by TradingView AltaGas 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 Capitalization06/11/2025C$38.33C$38.66+0.86%C$38.83C$38.27396,358 shsC$11.51 billion06/10/2025C$38.25C$38.33+0.21%C$38.53C$38.18391,500 shsC$11.41 billion06/09/2025C$38.13C$38.25+0.31%C$38.41C$37.73678,118 shsC$11.39 billion06/06/2025C$38.26C$38.13-0.34%C$38.30C$37.94676,820 shsC$11.35 billion06/05/2025C$38.43C$38.26-0.44%C$38.60C$38.05527,398 shsC$11.39 billion06/04/2025C$38.85C$38.43-1.08%C$39.06C$38.38844,681 shsC$11.44 billion06/03/2025C$38.52C$38.85+0.86%C$39.24C$38.54710,034 shsC$11.57 billion06/02/2025C$38.47C$38.52+0.13%C$38.69C$38.21619,720 shsC$11.47 billion05/30/2025C$38.46C$38.47+0.03%C$38.61C$38.181.43 million shsC$11.45 billion05/29/2025C$37.95C$38.46+1.34%C$38.77C$37.88783,195 shsC$11.45 billion Get the Latest News and Ratings for ALA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for AltaGas and its competitors with MarketBeat's FREE daily newsletter. 05/28/2025C$38.46C$37.95-1.33%C$38.58C$37.89830,788 shsC$11.30 billion05/27/2025C$38.02C$38.46+1.16%C$38.68C$38.00991,981 shsC$11.45 billion05/26/2025C$37.91C$38.02+0.29%C$38.20C$37.72328,977 shsC$11.32 billion05/23/2025C$37.63C$37.91+0.74%C$37.92C$37.53380,665 shsC$11.29 billion05/22/2025C$38.04C$37.63-1.08%C$38.29C$37.441.05 million shsC$11.20 billion05/21/2025C$37.51C$38.04+1.41%C$38.09C$37.38682,690 shsC$11.32 billion05/20/2025C$37.27C$37.51+0.64%C$37.91C$37.18708,480 shsC$11.17 billion05/19/2025C$37.27C$37.27C$37.56C$37.08770,576 shsC$11.09 billion05/16/2025C$37.29C$37.27-0.05%C$37.56C$37.08770,576 shsC$11.09 billion05/15/2025C$37.54C$37.29-0.67%C$37.57C$37.22818,255 shsC$11.10 billion05/14/2025C$37.48C$37.54+0.16%C$37.55C$37.08718,767 shsC$11.18 billion05/13/2025C$37.46C$37.48+0.05%C$37.76C$37.09786,679 shsC$11.16 billion05/12/2025C$37.96C$37.46-1.32%C$38.09C$37.171.10 million shsC$11.15 billion Related Companies Pembina Pipeline Stock Chart Keyera Stock Chart Topaz Energy Stock Chart Gibson Energy Stock Chart Tidewater Midstream and Infrastructure Stock Chart Enbridge Stock Chart TC Energy Stock Chart Cameco Stock Chart Cenovus Energy Stock Chart Tourmaline Oil Stock Chart Receive ALA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for AltaGas and its competitors with MarketBeat's FREE daily newsletter. 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