ATCO (ACO.Y) Stock Chart & Stock Price History C$51.80 -0.70 (-1.33%) As of 07/18/2025 02:18 PM 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 26.34%, with a year-to-date return of 5.93%. In the past month, the stock has decreased 1.61%, reflecting recent market activity. As of the latest close, ATCO traded at C$51.80 with a market cap of C$643.87 million and volume of 100 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 Performance0.00%1 Month Performance-1.61%3 Month Performance+1.15%Year-To-Date PerformanceN/A1 Year PerformanceN/A ACO.Y Stock Chart for Sunday, July, 20, 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 Capitalization07/18/2025C$52.50C$51.80-1.33%C$51.80C$51.80100 shsC$643.87 million07/17/2025C$52.50C$52.50C$54.90C$52.50200 shsC$652.58 million07/16/2025C$51.80C$52.50+1.35%C$54.90C$52.50200 shsC$652.58 million07/15/2025C$51.80C$51.80C$51.80C$51.51401 shsC$643.87 million07/14/2025C$51.02C$51.80+1.53%C$51.80C$51.31300 shsC$643.87 million07/11/2025C$51.41C$51.02-0.76%C$51.41C$51.02300 shsC$634.18 million07/10/2025C$51.41C$51.41C$51.41C$51.41100 shsC$639.03 million07/09/2025C$53.00C$51.41-3.00%C$51.41C$51.41100 shsC$639.03 million07/08/2025C$51.82C$53.00+2.28%C$53.00C$53.00100 shsC$658.79 million07/07/2025C$51.82C$51.82C$51.82C$51.82100 shsC$644.12 million Get the Latest News and Ratings for ACO.Y 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$52.10C$51.82-0.54%C$51.82C$51.82100 shsC$644.12 million07/03/2025C$52.10C$52.10C$52.10C$52.10100 shsC$647.60 million07/02/2025C$53.00C$52.10-1.70%C$52.10C$52.10100 shsC$647.60 million07/01/2025C$53.00C$53.00C$53.00C$53.00200 shsC$658.79 million06/30/2025C$53.00C$53.00C$53.00C$53.00200 shsC$658.79 million06/25/2025C$53.00C$53.00C$53.00C$53.00100 shsC$658.79 million06/24/2025C$53.00C$53.00C$53.00C$53.00100 shsC$658.79 million06/23/2025C$52.65C$53.00+0.66%C$53.00C$53.00501 shsC$658.79 million06/20/2025C$52.51C$52.65+0.27%C$52.65C$52.65100 shsC$654.44 million06/19/2025C$52.11C$52.51+0.77%C$52.51C$52.51200 shsC$652.70 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 Maxim Power Stock Price Chart Polaris Renewable Energy Stock Price Chart Tidewater Renewables Stock Price Chart Green Impact Partners Stock Price Chart CF Energy 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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