Quantumsphere Acquisition (QUMSU) Stock Chart & Stock Price History $10.24 0.00 (0.00%) As of 10/14/2025 Add Compare Share Share Chart Stock AnalysisChartCompetitorsSEC FilingsShort InterestTrendsBuy This Stock Quantumsphere Acquisition Stock Price Performance The Quantumsphere Acquisition (QUMSU) stock chart highlights key performance trends across multiple timeframes. In the past month, the stock has increased 1.79%, reflecting recent market activity. As of the latest close, Quantumsphere Acquisition traded at $10.24 with a market cap of and volume of 3 shares. Receive QUMSU Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Quantumsphere Acquisition and its competitors with MarketBeat's FREE daily newsletter. 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Read our full terms of service and privacy policy. 5 Day Performance0.00%1 Month Performance+1.79% QUMSU Stock Chart for Thursday, October, 16, 2025 QUMSU Chart by TradingView Quantumsphere Acquisition 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 Capitalization10/15/2025$10.24$10.24$10.24$10.243 shs$0.0010/14/2025$10.24$10.24$10.24$10.195,700 shs$0.0010/13/2025$10.24$10.24$10.24$10.195,700 shs$0.0010/10/2025$10.18$10.24+0.59%$10.24$10.195,770 shs$0.0010/09/2025$10.18$10.18$10.18$10.1411,117 shs$0.0010/08/2025$10.14$10.18+0.39%$10.18$10.1411,117 shs$0.0010/07/2025$10.14$10.14$10.14$10.0927,272 shs$0.0010/06/2025$10.10$10.14+0.40%$10.14$10.0927,272 shs$0.0010/03/2025$10.12$10.10-0.20%$10.10$10.10311 shs$0.0010/02/2025$10.12$10.12$10.12$10.127,692 shs$0.00 Get the Latest News and Ratings for QUMSU and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Quantumsphere Acquisition and its competitors with MarketBeat's FREE daily newsletter. 10/01/2025$10.13$10.12-0.10%$10.12$10.127,692 shs$0.0009/30/2025$10.11$10.13+0.20%$10.13$10.11292,926 shs$0.0009/29/2025$10.09$10.11+0.20%$10.11$10.1038,970 shs$0.0009/26/2025$10.09$10.09$10.09$10.0922,667 shs$0.0009/25/2025$10.07$10.09+0.20%$10.09$10.075,327 shs$0.0009/24/2025$10.06$10.07+0.10%$10.07$10.0615,026 shs$0.0009/23/2025$10.06$10.06$10.06$10.065,013 shs$0.0009/22/2025$10.06$10.06+0.02%$10.06$10.0614,227 shs$0.0009/19/2025$10.06$10.06$10.06$10.06176 shs$0.0009/18/2025$10.05$10.06+0.10%$10.06$10.06176 shs$0.0009/17/2025$10.06$10.05-0.10%$10.06$10.0550,125 shs$0.0009/16/2025$10.07$10.06-0.10%$10.08$10.06124,716 shs$0.0009/15/2025$10.04$10.07+0.30%$10.08$10.06658 shs$0.00 Related Companies 1RT Acquisition Stock Chart A SPAC III Acquisition Stock Chart AGBA Group Stock Chart AGNC Investment Stock Chart AGNC Investment Stock Chart AGNC Investment Stock Chart AGNC Investment Stock Chart AGNC Investment Stock Chart Agriculture & Natural Solutions Acquisition Stock Chart Agriculture & Natural Solutions Acquisition Stock Chart Receive QUMSU Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Quantumsphere Acquisition and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:QUMSU) was last updated on 10/16/2025 by MarketBeat.com Staff From Our PartnersMove $1,000 into this stock before Nov 6The End of Tesla? "Hold onto your Tesla stock." That's the message insiders at Tesla have been giving staff...Altimetry | SponsoredURGENT: The Market's 3 Red Flags Are FlashingHere’s the uncomfortable truth: The smartest investors in the world are already preparing for a crash befor...StockEarnings | SponsoredOctober 16 Changes the Microchip Game — and InvestingWhile everyone's chasing the same AI plays, George Gilder is focused on something completely different. He ...Banyan Hill Publishing | SponsoredYour Bank Account Is No Longer SafeWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? 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