ATCO (ACO.X) Stock Chart & Stock Price History C$51.53 +0.92 (+1.82%) As of 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 30.06%, with a year-to-date return of 8.30%. In the past month, the stock has increased 3.58%, reflecting recent market activity. As of the latest close, ATCO traded at C$50.61 with a market cap of C$5.05 billion and volume of 196,033 shares. Five years ago, the stock traded at C$36.38, representing a 41.64% increase over that period. At the time, it had a market cap of C$3.58 billion and a volume of 377,673 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+2.08%1 Month Performance+3.58%3 Month Performance+7.51%Year-To-Date Performance+8.30%1 Year Performance+30.06%5 Year Performance+41.64% ACO.X Stock Chart for Thursday, June, 12, 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 Capitalization06/11/2025C$50.74C$50.61-0.26%C$50.96C$50.51196,033 shsC$5.05 billion06/10/2025C$50.29C$50.74+0.89%C$51.00C$50.30162,347 shsC$5.06 billion06/09/2025C$50.48C$50.29-0.38%C$50.69C$50.17189,442 shsC$5.02 billion06/06/2025C$50.62C$50.48-0.28%C$50.73C$50.11135,449 shsC$5.03 billion06/05/2025C$51.16C$50.62-1.06%C$51.16C$50.60162,303 shsC$5.05 billion06/04/2025C$51.60C$51.16-0.85%C$51.63C$51.00115,236 shsC$5.10 billion06/03/2025C$51.64C$51.60-0.08%C$51.91C$51.30122,795 shsC$5.15 billion06/02/2025C$51.60C$51.64+0.08%C$51.78C$51.10208,477 shsC$5.15 billion05/30/2025C$51.26C$51.60+0.66%C$51.82C$51.00192,335 shsC$5.15 billion05/29/2025C$51.92C$51.26-1.27%C$51.65C$51.19133,888 shsC$5.11 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. 05/28/2025C$52.24C$51.92-0.61%C$52.25C$51.59122,770 shsC$5.18 billion05/27/2025C$51.86C$52.24+0.73%C$52.48C$51.85155,683 shsC$5.21 billion05/26/2025C$52.09C$51.86-0.44%C$52.28C$51.7666,564 shsC$5.17 billion05/23/2025C$51.27C$52.09+1.60%C$52.12C$51.30114,380 shsC$5.19 billion05/22/2025C$52.34C$51.27-2.04%C$52.25C$51.25186,347 shsC$5.11 billion05/21/2025C$51.11C$52.34+2.41%C$52.45C$51.00179,320 shsC$5.22 billion05/20/2025C$50.70C$51.11+0.81%C$51.53C$50.68313,168 shsC$5.10 billion05/19/2025C$50.70C$50.70C$50.87C$50.25238,617 shsC$5.06 billion05/16/2025C$50.33C$50.70+0.74%C$50.87C$50.25238,617 shsC$5.06 billion05/15/2025C$50.30C$50.33+0.06%C$50.99C$50.30340,564 shsC$5.02 billion05/14/2025C$49.61C$50.30+1.39%C$50.36C$49.19239,846 shsC$5.02 billion05/13/2025C$49.75C$49.61-0.28%C$50.05C$49.55207,361 shsC$4.95 billion05/12/2025C$50.69C$49.75-1.85%C$50.47C$49.30250,859 shsC$4.96 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 BIPC Stock Chart BEPC Stock Chart TA 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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