ATCO (ACO.Y) Stock Chart & Stock Price History C$53.00 +0.50 (+0.95%) As of 05/21/2025 10:46 AM Eastern Add Compare Share Share Chart Stock AnalysisChartCompetitorsHeadlinesBuy This Stock ATCO Stock Price Performance The ATCO (ACO.Y) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 24.71%, with a year-to-date return of 8.38%. In the past month, the stock has increased 3.50%, reflecting recent market activity. As of the latest close, ATCO traded at C$53.00 with a market cap of C$658.79 million and volume of 1,100 shares. Five years ago, the stock traded at C$40.65, representing a 30.38% increase over that period. At the time, it had a market cap of C$541.42 million and a volume of 0 shares. Receive ACO.Y 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 PerformanceN/A1 Month PerformanceN/A3 Month PerformanceN/AYear-To-Date PerformanceN/A1 Year PerformanceN/A5 Year PerformanceN/A ACO.Y Stock Chart for Thursday, May, 22, 2025 ACO.Y 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 Capitalization05/21/2025C$52.50C$53.00+0.95%C$53.00C$52.971,100 shsC$658.79 million05/14/2025C$52.50C$52.50C$52.50C$52.50750 shsC$652.58 million05/13/2025C$52.50C$52.50C$52.50C$52.50750 shsC$652.58 million05/12/2025C$52.00C$52.50+0.96%C$52.50C$52.50750 shsC$652.58 million05/09/2025C$52.00C$52.00C$52.00C$52.002,250 shsC$646.36 million05/08/2025C$51.50C$52.00+0.97%C$53.05C$52.005,600 shsC$646.36 million05/01/2025C$51.50C$51.50C$51.50C$51.39702 shsC$640.15 million04/30/2025C$51.50C$51.50C$51.50C$51.39702 shsC$640.15 million04/29/2025C$51.50C$51.50C$51.50C$51.39702 shsC$640.15 million04/28/2025C$51.50C$51.50C$51.50C$51.39702 shsC$640.15 million04/25/2025C$51.50C$51.50C$51.50C$51.39702 shsC$640.15 million04/24/2025C$51.21C$51.50+0.57%C$51.50C$51.39702 shsC$640.15 million Related Companies Brookfield Infrastructure Partners Stock Price Chart Canadian Utilities Stock Price Chart ATCO Stock Price Chart Superior Plus Stock Price Chart Caribbean Utilities Stock Price Chart Altius Renewable Royalties Stock Price Chart Maxim Power Stock Price Chart Polaris Renewable Energy Stock Price Chart Tidewater Renewables Stock Price Chart Green Impact Partners Stock Price Chart Receive ACO.Y 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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