Arqit Quantum (ARQQ) Stock Chart & Stock Price History $42.12 +1.53 (+3.77%) Closing price 04:00 PM EasternExtended Trading$41.33 -0.79 (-1.88%) As of 05:40 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 ForecastsChartCompetitorsEarningsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Arqit Quantum Stock Price Performance The Arqit Quantum (ARQQ) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 573.65%, with a year-to-date return of 8.44%. In the past month, the stock has increased 36.71%, reflecting recent market activity. As of the latest close, Arqit Quantum traded at $40.59 with a market cap of $618.59 million and volume of 742,104 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+0.93%1 Month Performance+36.71%3 Month Performance+13.41%Year-To-Date Performance+8.44%1 Year Performance+573.65% ARQQ Stock Chart for Wednesday, September, 24, 2025 ARQQ Chart by TradingView Arqit Quantum 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 Capitalization09/23/2025$41.27$40.59-1.65%$42.65$38.77742,104 shs$618.59 million09/22/2025$41.73$41.27-1.10%$41.33$36.00948,353 shs$628.96 million09/19/2025$37.40$41.73+11.58%$42.21$37.001.39 million shs$635.55 million09/18/2025$35.42$37.40+5.59%$37.67$35.00735,564 shs$569.42 million09/17/2025$33.09$35.42+7.04%$35.59$31.16621,404 shs$539.45 million09/16/2025$33.16$33.09-0.21%$34.90$32.20365,385 shs$503.96 million09/15/2025$33.71$33.16-1.63%$34.00$32.32414,725 shs$504.86 million09/12/2025$30.25$33.71+11.44%$33.85$30.06642,926 shs$513.40 million09/11/2025$27.80$30.25+8.81%$30.50$27.92298,006 shs$460.71 million09/10/2025$28.12$27.80-1.14%$29.48$27.51231,647 shs$423.39 million Get the Latest News and Ratings for ARQQ and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Arqit Quantum and its competitors with MarketBeat's FREE daily newsletter. 09/09/2025$26.63$28.12+5.60%$28.14$26.55272,626 shs$428.27 million09/08/2025$27.85$26.63-4.38%$28.21$26.31297,582 shs$405.58 million09/05/2025$27.41$27.85+1.61%$28.46$26.95144,891 shs$354.81 million09/04/2025$27.77$27.41-1.30%$27.61$26.41186,438 shs$349.20 million09/03/2025$27.74$27.77+0.11%$28.84$27.10224,128 shs$353.79 million09/02/2025$30.00$27.74-7.53%$29.41$27.18330,039 shs$353.55 million09/01/2025$30.00$30.00$31.94$29.96198,721 shs$382.20 million08/29/2025$31.89$30.00-5.93%$31.94$29.96198,721 shs$382.20 million08/28/2025$30.41$31.89+4.87%$32.40$30.97235,600 shs$406.28 million08/27/2025$31.57$30.41-3.67%$31.60$30.35198,350 shs$387.58 million08/26/2025$30.84$31.57+2.37%$32.00$30.80227,092 shs$402.20 million08/25/2025$30.81$30.84+0.10%$31.30$29.50203,023 shs$392.90 million Related Companies Sprinklr Stock Chart BigBear.ai Stock Chart Opera Stock Chart Certara Stock Chart Coursera Stock Chart Nayax Stock Chart Karooooo Stock Chart Lightspeed Commerce Stock Chart Rezolve AI Stock Chart N-able Stock Chart Receive ARQQ Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Arqit Quantum and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:ARQQ) was last updated on 9/24/2025 by MarketBeat.com Staff From Our PartnersWhat The Silver Boom Could Mean For You…AI, electric vehicles, and even global central banks are quietly fueling record demand for silver. 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