Algoma Steel Group (ASTL) Stock Chart & Stock Price History C$5.69 +0.18 (+3.27%) As of 04:00 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendHeadlinesInsider TradesBuy This Stock Algoma Steel Group Stock Price Performance The Algoma Steel Group (ASTL) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 59.04%, with a year-to-date return of -59.59%. In the past month, the stock has decreased 14.82%, reflecting recent market activity. As of the latest close, Algoma Steel Group traded at C$5.51 with a market cap of C$578.19 million and volume of 385,864 shares. Receive ASTL Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Algoma Steel Group and its competitors with MarketBeat's FREE daily newsletter. 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Read our full terms of service and privacy policy. 5 Day Performance-1.56%1 Month Performance-14.82%3 Month Performance-37.68%Year-To-Date Performance-59.59%1 Year Performance-59.04% ASTL Stock Chart for Monday, September, 29, 2025 ASTL Chart by TradingView Algoma Steel Group 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 Capitalization09/29/2025C$5.51C$5.69+3.27%C$6.36C$5.681.55 million shsC$597.07 million09/26/2025C$5.56C$5.51-0.90%C$5.62C$5.47385,864 shsC$578.19 million09/25/2025C$5.78C$5.56-3.81%C$5.77C$5.55583,902 shsC$583.43 million09/24/2025C$5.76C$5.78+0.35%C$5.96C$5.75864,167 shsC$606.52 million09/23/2025C$5.78C$5.76-0.35%C$6.03C$5.711.33 million shsC$604.42 million09/22/2025C$6.07C$5.78-4.78%C$6.04C$5.77970,547 shsC$606.52 million09/19/2025C$6.24C$6.07-2.72%C$6.28C$6.051.29 million shsC$636.95 million09/18/2025C$6.34C$6.24-1.58%C$6.47C$6.19535,036 shsC$654.79 million09/17/2025C$6.46C$6.34-1.86%C$6.63C$6.31549,128 shsC$665.28 million09/16/2025C$6.30C$6.46+2.54%C$6.54C$6.29874,943 shsC$677.87 million Get the Latest News and Ratings for ASTL and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Algoma Steel Group and its competitors with MarketBeat's FREE daily newsletter. 09/15/2025C$6.31C$6.30-0.16%C$6.48C$6.27799,547 shsC$661.08 million09/12/2025C$6.40C$6.31-1.41%C$6.43C$6.27650,265 shsC$662.13 million09/11/2025C$6.46C$6.40-0.93%C$6.59C$6.30864,227 shsC$671.58 million09/10/2025C$6.49C$6.46-0.46%C$6.66C$6.45922,165 shsC$677.87 million09/09/2025C$6.87C$6.49-5.53%C$7.03C$6.44852,388 shsC$681.02 million09/08/2025C$7.11C$6.87-3.38%C$7.10C$6.84297,863 shsC$720.90 million09/05/2025C$6.86C$7.11+3.64%C$7.20C$6.88741,205 shsC$746.08 million09/04/2025C$6.63C$6.86+3.47%C$6.95C$6.45433,867 shsC$719.85 million09/03/2025C$6.66C$6.63-0.45%C$6.72C$6.47287,164 shsC$695.71 million09/02/2025C$6.68C$6.66-0.30%C$6.66C$6.42214,251 shsC$698.86 million09/01/2025C$6.68C$6.68C$6.99C$6.67296,222 shsC$700.96 million08/29/2025C$6.99C$6.68-4.43%C$6.99C$6.67296,222 shsC$700.96 million08/28/2025C$6.80C$6.99+2.79%C$7.02C$6.69379,297 shsC$726.05 million Related Companies Trifecta Gold Stock Chart Cielo Waste Solutions Stock Chart Altai Resources Stock Chart TMX Group Stock Chart Champion Iron Stock Chart Labrador Iron Ore Royalty Stock Chart Tree Island Steel Stock Chart Aya Gold & Silver Stock Chart Lithium Americas Stock Chart Ivanhoe Electric Stock Chart Receive ASTL Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Algoma Steel Group and its competitors with MarketBeat's FREE daily newsletter. 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