ATCO (ACO.X) Stock Chart & Stock Price History C$50.53 +0.21 (+0.42%) As of 07/18/2025 04:00 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsHeadlinesInsider TradesBuy This Stock ATCO Stock Price Performance The ATCO (ACO.X) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 26.55%, with a year-to-date return of 6.20%. In the past month, the stock has decreased 1.73%, reflecting recent market activity. As of the latest close, ATCO traded at C$50.53 with a market cap of C$5.04 billion and volume of 182,960 shares. Five years ago, the stock traded at C$42.31, representing a 19.43% increase over that period. At the time, it had a market cap of C$4.29 billion and a volume of 134,773 shares. Receive ACO.X Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ATCO and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+0.12%1 Month Performance-1.73%3 Month Performance+0.60%Year-To-Date Performance+6.20%1 Year Performance+26.55%5 Year Performance+19.43% ACO.X Stock Chart for Saturday, July, 19, 2025 ACO.X Chart by TradingView ATCO 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 Capitalization07/18/2025C$50.32C$50.53+0.42%C$50.71C$50.35182,960 shsC$5.04 billion07/17/2025C$50.57C$50.32-0.49%C$50.60C$50.11273,499 shsC$5.02 billion07/16/2025C$50.36C$50.57+0.42%C$51.07C$50.26239,783 shsC$5.04 billion07/15/2025C$50.47C$50.36-0.22%C$50.55C$49.94331,420 shsC$5.02 billion07/14/2025C$49.87C$50.47+1.20%C$50.81C$49.84317,358 shsC$5.03 billion07/11/2025C$50.15C$49.87-0.56%C$50.01C$49.50233,091 shsC$4.97 billion07/10/2025C$50.41C$50.15-0.52%C$50.41C$49.95243,100 shsC$5.00 billion07/09/2025C$50.22C$50.41+0.38%C$50.50C$50.03208,596 shsC$5.03 billion07/08/2025C$50.27C$50.22-0.10%C$50.73C$50.10277,132 shsC$5.01 billion07/07/2025C$50.54C$50.27-0.53%C$50.62C$50.13196,576 shsC$5.01 billion Get the Latest News and Ratings for ACO.X and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ATCO and its competitors with MarketBeat's FREE daily newsletter. 07/04/2025C$50.66C$50.54-0.24%C$50.85C$50.3171,143 shsC$5.04 billion07/03/2025C$50.58C$50.66+0.16%C$50.77C$50.2280,732 shsC$5.05 billion07/02/2025C$50.78C$50.58-0.39%C$50.81C$50.26131,833 shsC$5.04 billion07/01/2025C$50.78C$50.78C$51.13C$50.25189,268 shsC$5.06 billion06/30/2025C$50.38C$50.78+0.79%C$51.13C$50.25189,268 shsC$5.06 billion06/27/2025C$50.52C$50.38-0.28%C$50.59C$50.17170,367 shsC$5.02 billion06/26/2025C$51.00C$50.52-0.94%C$51.08C$50.47142,882 shsC$5.04 billion06/25/2025C$51.12C$51.00-0.23%C$51.64C$50.50177,568 shsC$5.09 billion06/24/2025C$51.34C$51.12-0.43%C$51.61C$51.0991,525 shsC$5.10 billion06/23/2025C$51.13C$51.34+0.41%C$51.58C$51.02192,159 shsC$5.12 billion06/20/2025C$51.37C$51.13-0.47%C$51.51C$50.73777,343 shsC$5.10 billion06/19/2025C$51.42C$51.37-0.10%C$51.71C$51.1264,820 shsC$5.12 billion06/18/2025C$51.47C$51.42-0.10%C$51.62C$51.25240,087 shsC$5.13 billion Related Companies CU Stock Chart ACO.Y Stock Chart BIP.UN Stock Chart EMA Stock Chart BEP.UN Stock Chart CPX Stock Chart NPI Stock Chart TA Stock Chart BEPC Stock Chart BIPC Stock Chart Receive ACO.X Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ATCO and its competitors with MarketBeat's FREE daily newsletter. 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