AltaGas (ALA) Stock Chart & Stock Price History C$37.89 +0.38 (+1.01%) As of 02:53 PM 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 23.18%, with a year-to-date return of 13.17%. In the past month, the stock has decreased 4.03%, reflecting recent market activity. As of the latest close, AltaGas traded at C$37.51 with a market cap of C$11.17 billion and volume of 708,480 shares. Five years ago, the stock traded at C$15.47, representing a 144.93% increase over that period. At the time, it had a market cap of C$4.31 billion and a volume of 632,561 shares. 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. Email Address 5 Day Performance+1.66%1 Month Performance-4.03%3 Month Performance+8.63%Year-To-Date Performance+13.17%1 Year Performance+23.18%5 Year Performance+144.93% ALA Stock Chart for Wednesday, May, 21, 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 Capitalization05/20/2025C$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 billion05/09/2025C$38.74C$37.96-2.01%C$38.88C$37.601.23 million shsC$11.30 billion05/08/2025C$38.94C$38.74-0.51%C$39.15C$38.45884,113 shsC$11.53 billion05/07/2025C$38.74C$38.94+0.52%C$39.15C$38.60962,264 shsC$11.59 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. 05/06/2025C$38.99C$38.74-0.64%C$39.27C$38.631.41 million shsC$11.53 billion05/05/2025C$40.20C$38.99-3.01%C$40.20C$38.921.24 million shsC$11.61 billion05/02/2025C$40.22C$40.20-0.05%C$40.67C$39.82832,010 shsC$11.97 billion05/01/2025C$40.80C$40.22-1.42%C$40.91C$39.54972,397 shsC$11.97 billion04/30/2025C$40.69C$40.80+0.27%C$40.98C$40.18833,264 shsC$12.15 billion04/29/2025C$40.41C$40.69+0.69%C$40.93C$40.42711,152 shsC$12.11 billion04/28/2025C$40.03C$40.41+0.95%C$40.53C$39.93724,642 shsC$12.03 billion04/25/2025C$39.93C$40.03+0.25%C$40.15C$39.69576,152 shsC$11.92 billion04/24/2025C$39.75C$39.93+0.45%C$40.10C$39.49584,112 shsC$11.89 billion04/23/2025C$39.67C$39.75+0.20%C$39.80C$38.62701,236 shsC$11.83 billion04/22/2025C$39.48C$39.67+0.48%C$40.00C$39.40496,331 shsC$11.81 billion04/21/2025C$40.00C$39.48-1.30%C$40.12C$39.27494,179 shsC$11.75 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 Cenovus Energy Stock Chart Cameco 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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