Aptose Biosciences (APS) Stock Chart & Stock Price History C$1.58 -0.07 (-4.24%) As of 08/22/2025 04:10 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsFDA EventsHeadlinesBuy This Stock Aptose Biosciences Stock Price Performance The Aptose Biosciences (APS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 90.06%, with a year-to-date return of -83.79%. In the past month, the stock has decreased 33.61%, reflecting recent market activity. As of the latest close, Aptose Biosciences traded at C$1.58 with a market cap of C$68.03 million and volume of 1,300 shares. Five years ago, the stock traded at a split-adjusted price of C$195.90, representing a 99.19% decrease over that period. At the time, it had a market cap of C$623.76 million and a volume of 308 shares. 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Email Address 5 Day Performance-14.59%1 Month Performance-33.61%3 Month Performance-33.05%Year-To-Date Performance-83.79%1 Year Performance-90.06%5 Year Performance-99.19% APS Stock Chart for Saturday, August, 23, 2025 APS Chart by TradingView Aptose Biosciences 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 Capitalization08/22/2025C$1.65C$1.58-4.24%C$1.79C$1.581,300 shsC$68.03 million08/21/2025C$1.53C$1.65+7.84%C$1.66C$1.582,059 shsC$71.05 million08/20/2025C$1.73C$1.53-11.56%C$1.79C$1.414,925 shsC$65.88 million08/19/2025C$1.85C$1.73-6.49%C$1.85C$1.736,775 shsC$74.49 million08/18/2025C$1.72C$1.85+7.56%C$1.86C$1.851,521 shsC$79.66 million08/15/2025C$1.72C$1.72C$1.72C$1.62452 shsC$74.06 million08/14/2025C$1.72C$1.72C$1.84C$1.622,989 shsC$74.06 million08/13/2025C$1.71C$1.72+0.58%C$1.84C$1.622,989 shsC$74.06 million08/12/2025C$1.72C$1.71-0.58%C$1.71C$1.70531 shsC$73.63 million08/11/2025C$1.71C$1.72+0.58%C$1.96C$1.705,792 shsC$74.06 million Get the Latest News and Ratings for APS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Aptose Biosciences and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025C$1.70C$1.71+0.59%C$1.79C$1.71807 shsC$73.63 million08/07/2025C$1.73C$1.70-1.73%C$1.86C$1.705,095 shsC$73.20 million08/06/2025C$1.71C$1.73+1.17%C$1.74C$1.73608 shsC$74.49 million08/05/2025C$1.68C$1.71+1.79%C$1.88C$1.712,500 shsC$73.63 million08/04/2025C$1.68C$1.68C$1.82C$1.623,909 shsC$72.34 million08/01/2025C$1.70C$1.68-1.18%C$1.82C$1.623,909 shsC$72.34 million07/31/2025C$1.77C$1.70-3.95%C$1.85C$1.70609 shsC$73.20 million07/30/2025C$2.05C$1.77-13.66%C$1.97C$1.5318,592 shsC$76.21 million07/29/2025C$2.15C$2.05-4.65%C$2.19C$1.9210,614 shsC$88.27 million07/28/2025C$2.27C$2.15-5.29%C$2.29C$2.038,299 shsC$92.58 million07/25/2025C$2.34C$2.27-2.99%C$2.37C$2.271,500 shsC$97.74 million07/24/2025C$2.38C$2.34-1.68%C$2.46C$2.266,221 shsC$100.76 million07/23/2025C$2.27C$2.38+4.85%C$2.41C$2.38900 shsC$102.48 million07/22/2025C$2.26C$2.27+0.44%C$2.48C$2.226,502 shsC$97.74 million Related Companies FRX Stock Chart TH Stock Chart ONC Stock Chart MDNA Stock Chart SVA Stock Chart COV Stock Chart HBP Stock Chart MBX Stock Chart RVX Stock Chart GSD Stock Chart Receive APS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Aptose Biosciences and its competitors with MarketBeat's FREE daily newsletter. 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