Arqit Quantum (ARQQW) Stock Chart & Stock Price History $0.61 -0.07 (-9.60%) Closing price 03:56 PM EasternExtended Trading$0.57 -0.04 (-7.28%) As of 07:59 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 AnalysisChartCompetitorsHeadlinesSEC FilingsShort InterestTrendsBuy This Stock Arqit Quantum Stock Price Performance The Arqit Quantum (ARQQW) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 634.54%, with a year-to-date return of -77.01%. In the past month, the stock has increased 261.00%, reflecting recent market activity. As of the latest close, Arqit Quantum traded at $0.68 with a market cap of and volume of 290,561 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-28.73%1 Month Performance+261.00%3 Month Performance-31.04%Year-To-Date Performance-77.01%1 Year Performance+634.54% ARQQW Stock Chart for Thursday, October, 16, 2025 ARQQW 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 Capitalization10/16/2025$0.68$0.61-9.60%$0.65$0.55302,899 shs$0.0010/15/2025$0.58$0.68+17.05%$0.68$0.58290,561 shs$0.0010/14/2025$0.69$0.58-15.97%$0.69$0.53535,693 shs$0.0010/13/2025$0.86$0.69-19.85%$0.93$0.67525,224 shs$0.0010/10/2025$1.04$0.86-17.20%$1.10$0.86229,014 shs$0.0010/09/2025$1.18$1.04-11.86%$1.18$0.95250,992 shs$0.0010/08/2025$1.16$1.18+1.73%$1.27$1.10276,725 shs$0.0010/07/2025$1.17$1.16-0.86%$1.34$1.10314,474 shs$0.0010/06/2025$1.17$1.17$1.29$1.10355,081 shs$0.0010/03/2025$1.16$1.17+0.86%$1.66$1.17595,678 shs$0.00 Get the Latest News and Ratings for ARQQW 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. 10/02/2025$0.99$1.16+16.69%$1.30$0.99438,784 shs$0.0010/01/2025$0.94$0.99+5.76%$1.10$0.96140,163 shs$0.0009/30/2025$0.92$0.94+2.63%$1.10$0.92142,040 shs$0.0009/29/2025$0.80$0.92+14.49%$1.22$0.85168,088 shs$0.0009/26/2025$1.20$0.80-33.33%$1.26$0.80260,896 shs$0.0009/25/2025$1.35$1.20-11.11%$1.30$1.20183,503 shs$0.0009/24/2025$1.16$1.35+16.38%$1.64$1.20706,222 shs$0.0009/23/2025$1.77$1.16-34.46%$1.95$1.09552,385 shs$0.0009/22/2025$0.98$1.77+80.63%$1.95$0.751.82 million shs$0.0009/19/2025$0.44$0.98+121.15%$1.00$0.44858,536 shs$0.0009/18/2025$0.18$0.44+153.20%$0.50$0.20646,922 shs$0.0009/17/2025$0.17$0.18+2.94%$0.18$0.1391,392 shs$0.0009/16/2025$0.13$0.17+36.00%$0.19$0.13211,095 shs$0.0009/15/2025$0.15$0.13-16.72%$0.16$0.12334,529 shs$0.00 Related Companies 1RT Acquisition Stock Price Chart A SPAC III Acquisition Stock Price Chart AGBA Group Stock Price Chart AGNC Investment Stock Price Chart AGNC Investment Stock Price Chart AGNC Investment Stock Price Chart AGNC Investment Stock Price Chart AGNC Investment Stock Price Chart Agriculture & Natural Solutions Acquisition Stock Price Chart Agriculture & Natural Solutions Acquisition Stock Price Chart Receive ARQQW 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. 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