Quantum Biopharma (QNTM) Stock Chart & Stock Price History $18.08 +0.03 (+0.17%) Closing price 04:00 PM EasternExtended Trading$18.74 +0.66 (+3.62%) As of 07:58 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesOwnershipSEC FilingsTrendsBuy This Stock Quantum Biopharma Stock Price Performance The Quantum Biopharma (QNTM) stock chart highlights key performance trends across multiple timeframes. Since the beginning of the year, the stock increased 391.30%. In the past month, the stock has decreased 17.29%, reflecting recent market activity. As of the latest close, Quantum Biopharma traded at $18.05 with a market cap of $52.49 million and volume of 87,119 shares. 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Email Address 5 Day Performance-19.47%1 Month Performance-17.29%3 Month Performance+47.95%Year-To-Date Performance+391.30% QNTM Stock Chart for Friday, August, 22, 2025 QNTM Chart by TradingView Quantum Biopharma 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 Capitalization08/22/2025$18.05$18.08+0.17%$18.84$17.5076,613 shs$52.61 million08/21/2025$18.14$18.05-0.50%$19.48$17.8587,119 shs$52.49 million08/20/2025$18.03$18.14+0.61%$18.86$17.50100,291 shs$52.79 million08/19/2025$20.61$18.03-12.52%$20.94$17.80228,867 shs$52.47 million08/18/2025$22.45$20.61-8.20%$22.47$20.4394,653 shs$59.98 million08/15/2025$22.35$22.45+0.45%$22.57$21.01121,269 shs$65.33 million08/14/2025$23.25$22.35-3.87%$23.66$21.73123,352 shs$64.99 million08/13/2025$24.33$23.25-4.44%$25.30$22.75238,028 shs$67.66 million08/12/2025$26.26$24.33-7.35%$27.00$21.75451,018 shs$70.80 million08/11/2025$29.21$26.26-10.10%$31.91$25.30371,407 shs$76.36 million Get the Latest News and Ratings for QNTM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Quantum Biopharma and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025$26.01$29.21+12.30%$29.25$26.94215,475 shs$84.94 million08/07/2025$26.14$26.01-0.50%$30.75$25.24342,296 shs$75.69 million08/06/2025$24.57$26.14+6.39%$26.50$24.37121,678 shs$76.07 million08/05/2025$27.80$24.57-11.62%$27.44$24.20243,799 shs$71.45 million08/04/2025$23.70$27.80+17.30%$28.15$23.72228,409 shs$80.90 million08/01/2025$23.47$23.70+0.98%$24.70$21.62131,547 shs$68.97 million07/31/2025$22.71$23.47+3.35%$24.70$22.8092,345 shs$68.30 million07/30/2025$22.44$22.71+1.20%$24.25$22.3675,032 shs$66.04 million07/29/2025$24.88$22.44-9.81%$25.35$22.00187,329 shs$65.30 million07/28/2025$25.15$24.88-1.07%$26.72$24.57142,794 shs$72.40 million07/25/2025$23.83$25.15+5.54%$26.00$22.51204,620 shs$73.19 million07/24/2025$22.64$23.83+5.26%$24.25$21.63132,216 shs$69.30 million07/23/2025$21.86$22.64+3.57%$23.00$21.65101,322 shs$65.88 million07/22/2025$23.71$21.86-7.80%$23.67$21.50150,842 shs$63.61 million07/21/2025$23.37$23.71+1.45%$24.60$22.00145,020 shs$69.00 million Related Companies Arcturus Therapeutics Stock Price Chart Corvus Pharmaceuticals Stock Price Chart Abeona Therapeutics Stock Price Chart Olema Pharmaceuticals Stock Price Chart Aldeyra Therapeutics Stock Price Chart Amarin Stock Price Chart Benitec Biopharma Stock Price Chart Rocket Pharmaceuticals Stock Price Chart Inhibrx Biosciences Stock Price Chart Neurogene Stock Price Chart Receive QNTM Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Quantum Biopharma and its competitors with MarketBeat's FREE daily newsletter. 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