Arqit Quantum (ARQQ) Stock Chart & Stock Price History $15.94 -0.67 (-4.06%) Closing price 03:59 PM EasternExtended Trading$15.70 -0.24 (-1.51%) As of 07:55 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 ForecastsChartCompetitorsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrends Arqit Quantum Stock Price Performance 5 Day Performance-3.59%1 Month Performance-45.27%3 Month Performance+49.80%6 Month Performance+86.93%Year-To-Date Performance-58.97%1 Year Performance+18.24% 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. Email Address ARQQ Stock Chart for Friday, February, 21, 2025 ARQQ Chart by TradingView Arqit Quantum Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization02/20/2025$15.60$16.61+6.47%$16.99$16.10546,109 shs$211.61 million02/19/2025$15.89$15.60-1.83%$17.00$15.32479,100 shs$198.74 million02/18/2025$16.53$15.89-3.87%$16.53$15.55467,240 shs$202.52 million02/17/2025$16.53$16.53$18.04$16.23448,427 shs$210.59 million02/14/2025$18.00$16.53-8.17%$18.04$16.23448,427 shs$210.59 million02/13/2025$18.00$18.00$18.55$17.35355,821 shs$229.32 million02/12/2025$17.49$18.00+2.92%$18.36$17.50408,915 shs$229.32 million02/11/2025$18.86$17.49-7.26%$19.30$17.32382,462 shs$222.82 million02/10/2025$19.00$18.86-0.74%$19.67$18.71343,767 shs$240.28 million02/07/2025$20.11$19.00-5.52%$20.37$18.90378,347 shs$242.06 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. 02/06/2025$20.00$20.11+0.55%$21.25$19.61386,321 shs$256.20 million02/05/2025$20.65$20.00-3.15%$20.80$19.75471,767 shs$254.90 million02/04/2025$19.92$20.65+3.66%$21.06$20.10478,023 shs$263.08 million02/03/2025$20.50$19.92-2.83%$20.49$18.02429,388 shs$253.78 million01/31/2025$21.47$20.50-4.52%$22.90$20.30568,071 shs$261.17 million01/30/2025$22.65$21.47-5.21%$23.00$20.90404,285 shs$268.38 million01/29/2025$23.72$22.65-4.51%$23.89$22.39342,083 shs$283.13 million01/28/2025$25.52$23.72-7.05%$26.12$23.20450,388 shs$296.50 million01/27/2025$27.89$25.52-8.50%$26.91$24.15621,019 shs$319 million01/24/2025$26.72$27.89+4.38%$30.19$27.32767,453 shs$348.63 million01/23/2025$29.11$26.72-8.21%$29.49$26.07447,059 shs$334 million01/22/2025$29.12$29.11-0.03%$31.10$28.00661,880 shs$363.88 million01/21/2025$26.77$29.12+8.78%$29.80$24.101.36 million shs$364 million01/20/2025$26.77$26.77$32.63$25.692.30 million shs$334.63 million Related Companies OneSpan Stock Chart EverQuote Stock Chart SecureWorks Stock Chart PubMatic Stock Chart Cognyte Software Stock Chart Simulations Plus Stock Chart ECARX Stock Chart Red Cat Stock Chart Yalla Group Stock Chart Rackspace Technology 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. 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