Quantum (QMCO) News Today $7.36 +0.25 (+3.52%) Closing price 09/12/2025 04:00 PM EasternExtended Trading$7.40 +0.04 (+0.61%) As of 09/12/2025 07:49 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 Headlines Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Why Is Quantum Up Today?Toggle Visibility of Why Is Quantum Up Today?Quantum Corporation (NASDAQ: QMCO) shares ticked higher mid-day, supported by an earnings‐per‐share guidance beat but tempered by a revenue outlook miss and renewed legal overhang. Positive Sentiment: Q2 EPS guidance of -0.36 to -0.16 beat the consensus of -0.39 Quantum Updates Q2 2026 Earnings Guidance Neutral Sentiment: Management outlined cost‐cutting measures and new growth initiatives to stabilize profitability after a wider-than-expected Q1 loss Quantum's Q1 Loss Wider Than Estimated, Revenues Plunge Y/Y Neutral Sentiment: Full Q1 2026 earnings call transcript is now available for detailed review Q1 2026 Earnings Call Transcript Negative Sentiment: Revenue guidance of $59M–$63M for Q2 fell short of the $71.5M consensus Quantum Updates Q2 2026 Earnings Guidance Negative Sentiment: Q1 loss was wider than expected, with year-over-year revenue declines raising execution concerns Quantum's Q1 Loss Wider Than Estimated Negative Sentiment: After‐hours share plunge attributed to the weak Q1 outlook and execution worries Why Quantum Corp. Stock Plunged In Today’s After-Hours Negative Sentiment: Robbins LLP files a QMCO class action for investors who purchased between Nov. 15, 2024 and Aug. 18, 2025 Robbins LLP Files QMCO Class Action Negative Sentiment: Rosen Law Firm urges investors to secure counsel before the Nov. 3 deadline in its securities suit Rosen Law Firm Reminder Negative Sentiment: Bronstein, Gewirtz & Grossman highlights opportunity for lead plaintiff status in a new QMCO class action BGG LLC Investor Alert Negative Sentiment: Faruqi & Faruqi reminds investors of the November 3 lead plaintiff deadline in another pending class action Faruqi & Faruqi Reminder Negative Sentiment: Glancy Prongay & Murray issues a deadline alert for lead plaintiff motions by Nov. 3, adding to legal uncertainty Glancy Prongay & Murray Deadline Alert Posted 1+ days agoAI Generated. May Contain Errors. QMCO Latest News All Sources Trusted Sources MarketBeat Barchart Benzinga Bloomberg GlobeNewswire GuruFocus MarketWatch Motley Fool NASDAQ PR Newswire Reuters Seeking Alpha TalkMarkets The Street TipRanks The Wall Street Journal Wall Street Zen Yahoo Finance Source Sentiment refers to the positivity or negativity of each headline according to our language processing algorithm. Sentiment All Sentiments Very Positive Positive Neutral Negative Very Negative Most Recent September 2025 August 2025 July 2025 June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024 January 2024 December 2023 November 2023 October 2023 September 2023 August 2023 July 2023 June 2023 May 2023 April 2023 March 2023 February 2023 January 2023 December 2022 November 2022 October 2022 Time Period INVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Quantum Corporation of Class Action Lawsuit and Upcoming Deadlines - QMCOSeptember 14 at 10:00 AM | globenewswire.comINVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Quantum Corporation of Class Action Lawsuit and Upcoming Deadlines - QMCOSeptember 13 at 12:15 PM | prnewswire.comINVESTOR DEADLINE APPROACHING: Faruqi & Faruqi, LLP Investigates Claims on Behalf of Investors of Quantum CorporationSeptember 13 at 11:05 AM | prnewswire.comD-Wave: Quantum Leap In Real TimeSeptember 12 at 6:01 PM | seekingalpha.comQuantum (NASDAQ:QMCO) Updates Q2 2026 Earnings GuidanceSeptember 12 at 5:14 PM | marketbeat.comDid You Suffer Losses in QMCO? Stockholders Who Lost Money in Quantum Corporation Should Contact Robbins LLP About the QMCO Class Action LawsuitSeptember 12 at 3:03 PM | globenewswire.comROSEN, THE FIRST FILING FIRM, Encourages Quantum Corporation Investors to Secure Counsel Before Important Deadline in Securities Class Action First Filed by the Firm - QMCOSeptember 12 at 1:28 PM | globenewswire.comQMCO INVESTOR ALERT: Bronstein, Gewirtz & Grossman LLC Announces that Quantum Corporation Investors with Substantial Losses Have Opportunity to Lead Class Action LawsuitSeptember 12 at 12:00 PM | globenewswire.comQuantum BioPharma Licensee Unbuzzd Wellness to Host Investor Webinar on September 16, 2025 at 1:30 PM PTSeptember 12 at 8:01 AM | globenewswire.comQuantum Corp’s Earnings Call: Challenges and InnovationsSeptember 12 at 6:40 AM | msn.comQuantum Corp’s Earnings Call: Challenges and InnovationsSeptember 12 at 6:40 AM | msn.comFaruqi & Faruqi Reminds Quantum Corporation Investors of the Pending Class Action Lawsuit with a Lead Plaintiff Deadline of November 3, 2025 - QMCOSeptember 11 at 9:30 PM | globenewswire.comDeadline Alert: Quantum Corporation (QMCO) Investors Who Lost Money Urged To Contact Glancy Prongay & Murray LLP About Securities Fraud LawsuitSeptember 11 at 1:44 PM | businesswire.comWhy Quantum Corp. Stock Plunged In Today’s After-HoursSeptember 11 at 3:49 AM | msn.comQuantum Corp (QMCO) Q1 2026 Earnings Call Highlights: Navigating Challenges and Seizing ...September 11 at 3:49 AM | finance.yahoo.comQuantum reports Q1 adjusted EPS ($1.58) vs ($1.59) last yearSeptember 10, 2025 | msn.comQuantum Corporation (QMCO) Q1 2026 Earnings Call TranscriptSeptember 10, 2025 | seekingalpha.comQuantum Reports Fiscal First Quarter 2026 Financial ResultsSeptember 10, 2025 | businesswire.comINVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Quantum Corporation of Class Action Lawsuit and Upcoming Deadlines - QMCOSeptember 10, 2025 | globenewswire.comDeadline Approaching: Quantum Corporation (QMCO) Investors Who Lost Money Urged To Contact Law Offices of Howard G. SmithSeptember 10, 2025 | businesswire.comQuantum's Earnings OutlookSeptember 9, 2025 | benzinga.comQMCO Investors Have Opportunity to Lead Quantum Corporation Securities Fraud Lawsuit First Filed by The Rosen Law FirmSeptember 9, 2025 | prnewswire.comROSEN, THE FIRST FILING FIRM, Encourages Quantum Corporation Investors to Secure Counsel Before Important Deadline in Securities Class Action First Filed by the Firm - QMCOSeptember 9, 2025 | globenewswire.comLaw Offices of Frank R. Cruz Encourages Quantum Corporation (QMCO) Investors To Inquire About Securities Fraud Class ActionSeptember 9, 2025 | businesswire.comQMCO INVESTOR ALERT: Bronstein, Gewirtz & Grossman LLC Announces that Quantum Corporation Investors with Substantial Losses Have Opportunity to Lead Class Action LawsuitSeptember 9, 2025 | prnewswire.comQuantum to Announce Fiscal First Quarter 2026 Financial Results on Wednesday, September 10, 2025September 8, 2025 | businesswire.comQUANTUM ALERT: Bragar Eagel & Squire, P.C. is Investigating Quantum Corporation on Behalf of Quantum Stockholders and Encourages Investors to Contact the FirmSeptember 8, 2025 | globenewswire.comINVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Quantum Corporation of Class Action Lawsuit and Upcoming Deadlines - QMCOSeptember 8, 2025 | prnewswire.comGlancy Prongay & Murray LLP, a Leading Securities Fraud Law Firm Encourages Quantum Corporation (QMCO) Investors To Inquire About Securities Fraud Class ActionSeptember 8, 2025 | tmcnet.comQMCO Investors Have Opportunity to Lead Quantum Corporation Securities Fraud Lawsuit with the Schall Law FirmSeptember 6, 2025 | businesswire.comINVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Quantum Corporation - QMCOSeptember 6, 2025 | globenewswire.comQMCO Stockholder Notice: Shareholder Rights Law Firm Robbins LLP Reminds Investors of the Class Action Lawsuit Against Quantum CorporationSeptember 5, 2025 | globenewswire.comDEADLINE ALERT: Faruqi & Faruqi, LLP Investigates Claims on Behalf of Investors of Quantum CorporationSeptember 5, 2025 | businesswire.comROSEN, THE FIRST FILING FIRM, Encourages Quantum Corporation Investors to Secure Counsel Before Important Deadline in Securities Class Action First Filed by the Firm - QMCOSeptember 5, 2025 | globenewswire.comLaw Offices of Howard G. Smith Encourages Quantum Corporation (QMCO) Investors To Inquire About Securities Fraud Class ActionSeptember 5, 2025 | businesswire.comGainey McKenna & Egleston Announces A Class Action Lawsuit Has Been Filed Against Quantum Corporation (QMCO)September 5, 2025 | globenewswire.comINVESTOR ALERT: Class Action Lawsuit Filed on Behalf of Quantum Corp. (QMCO) Investors – Holzer & Holzer, LLC Encourages Investors With Significant Losses to Contact the FirmSeptember 5, 2025 | globenewswire.comInvestor Alert: Robbins LLP Informs Investors of the Quantum Corporation Class Action LawsuitSeptember 4, 2025 | prnewswire.comEQUITY ALERT: Rosen Law Firm Files Securities Class Action Lawsuit on Behalf of Quantum Corporation Investors - QMCOSeptember 4, 2025 | businesswire.comQMCO Investors Have Opportunity to Lead Quantum Corporation Securities Fraud Lawsuit First Filed by The Rosen Law FirmSeptember 4, 2025 | prnewswire.comQUANTUM ALERT: Bragar Eagel & Squire, P.C. is Investigating Quantum Corporation on Behalf of Quantum Stockholders and Encourages Investors to Contact the FirmSeptember 4, 2025 | globenewswire.comQuantum Leap: Rigetti signs MOU with Indian governmentSeptember 4, 2025 | msn.comQuantum Appoints Gregg Pugmire as Vice President, Americas SalesSeptember 3, 2025 | finance.yahoo.comRosen Law Firm Encourages Quantum Corporation Investors to Inquire About Securities Class Action Investigation - QMCOSeptember 1, 2025 | prnewswire.comQuantum (NASDAQ:QMCO) Cut to "Sell" at Wall Street ZenSeptember 1, 2025 | marketbeat.comQuantum Expands Board of Directors with Appointment of Two New DirectorsAugust 28, 2025 | businesswire.comQMCO Investor News: If You Have Suffered Losses in Quantum Corporation (NYSE: QMCO), You Are Encouraged to Contact The Rosen Law Firm About Your RightsAugust 27, 2025 | globenewswire.comQUANTUM ALERT: Bragar Eagel & Squire, P.C. is Investigating Quantum Corporation on Behalf of Quantum Stockholders and Encourages Investors to Contact the FirmAugust 27, 2025 | globenewswire.comQuantum stock drops after receipt of Nasdaq notice over delay in quarterly report filingAugust 27, 2025 | msn.comQuantum receives noncompliance notification from NasdaqAugust 26, 2025 | msn.com Get Quantum News Delivered to You Automatically Sign up to receive the latest news and ratings for QMCO and its competitors with MarketBeat's FREE daily newsletter. 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Our company news sentiment scores track the average news sentiment of articles about each company over the most recent 7 days in order to identify companies that are receiving positive press. QMCO News Sentiment▼0.370.89▲Average Computer and Technology News Sentiment QMCO News Coverage Learn about the media coverage comparison. We track news headlines from hundreds of news outlets and tag them by company. This chart compares the number of articles about this company in the last seven days compared with the average number of articles about this company on a typical week. QMCO Articles This Week▼366▲QMCO Articles Average Week Get the Latest News and Ratings for QMCO and Related Stocks Enter your email address to receive the latest news and analysts' ratings for Quantum and its competitors. 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