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Stocks to Compare Sections All Sections Selected Performance Chart Price & Volume MarketRank Analyst Ratings Sales & Book Value Profitability & Earnings Dividends Debt Ownership Miscellaneous Headlines About Compare NYSEAMERICAN:CTM NASDAQ:DUOT OTCMKTS:NHHHF NASDAQ:ZTEK On This Page Performance ChartPrice & VolumeMarketRank™Analyst RatingsSales & Book ValueProfitability & EarningsDividendsDebtOwnershipMiscellaneousHeadlinesAbout Comparison Ideas Stock Ideas Comparative Price Performance Over Time1 day7 days30 days90 days365 daysCompare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeCTMCastellum$1.12-5.9%$1.17$0.12▼$2.83$102.38M-9.993.29 million shs2.77 million shsDUOTDuos Technologies Group$6.57-3.0%$7.73$2.03▼$9.27$86.30M1251,996 shs147,385 shsNHHHFFuelPositive$0.05+0.6%$0.04$0.00▼$0.06$26.27M0.29663,864 shs54,062 shsZTEKZentek$0.82-6.8%$1.20$0.50▼$1.84$92.44M0.4746,465 shs50,778 shsOptions Trading Made Easy - Download NowLearn the basics of options trading and how to use them to boost returns and manage risk with this free report from MarketBeat. Click the link below to get your free copy.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceCTMCastellum-5.88%-15.15%-0.88%+16.04%+635.39%DUOTDuos Technologies Group-2.95%-17.88%-16.20%-4.92%+128.92%NHHHFFuelPositive+0.63%-5.51%+33.70%+108.70%+48.15%ZTEKZentek-6.75%-6.98%-23.07%-53.75%-14.21%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationCTMCastellum2.191 of 5 stars3.53.00.00.01.12.50.0DUOTDuos Technologies Group2.3806 of 5 stars3.53.00.00.00.62.50.6NHHHFFuelPositiveN/AN/AN/AN/AN/AN/AN/AN/AZTEKZentek0.0784 of 5 stars0.03.00.00.00.00.00.0Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceCTMCastellum 3.00Buy$3.00167.86% UpsideDUOTDuos Technologies Group 3.00Buy$12.5090.26% UpsideNHHHFFuelPositive 0.00N/AN/AN/AZTEKZentek 0.00N/AN/AN/ACurrent Analyst Ratings BreakdownLatest NHHHF, CTM, DUOT, and ZTEK Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails6/16/2025DUOTDuos Technologies GroupAscendiant Capital MarketsSubscribe to MarketBeat All Access for the recommendation accuracy ratingBoost Price TargetBuy ➝ Buy$9.00 ➝ $11.00(Data available from 8/2/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookCTMCastellum$44.76M2.15N/AN/A$0.29 per share3.86DUOTDuos Technologies Group$7.28M11.51N/AN/A$0.25 per share26.28NHHHFFuelPositiveN/AN/AN/AN/A$0.02 per shareN/AZTEKZentek$1.22M70.65N/AN/A$0.10 per share8.23Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateCTMCastellum-$9.98M-$0.17N/A∞N/A-15.61%-40.01%-20.51%8/8/2025 (Estimated)DUOTDuos Technologies Group-$10.76M-$1.20N/AN/AN/A-90.41%-331.38%-37.71%8/12/2025 (Estimated)NHHHFFuelPositive-$14.05M-$0.02N/A∞N/AN/A-51.66%-44.18%N/AZTEKZentek-$7.22M-$0.06N/A∞N/A-1,186.72%-58.87%-50.22%8/11/2025 (Estimated)Latest NHHHF, CTM, DUOT, and ZTEK EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails8/12/2025Q2 2025DUOTDuos Technologies Group-$0.22N/AN/AN/A$4.94 millionN/A6/26/2025Q4 2025ZTEKZentekN/A-$0.01N/A-$0.01N/A$0.57 million5/15/2025Q1 2025DUOTDuos Technologies Group-$0.18-$0.18N/A-$0.18$4.60 million$4.95 millionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthCTMCastellumN/AN/AN/AN/AN/ADUOTDuos Technologies GroupN/AN/AN/AN/AN/ANHHHFFuelPositiveN/AN/AN/AN/AN/AZTEKZentekN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioCTMCastellum0.252.922.92DUOTDuos Technologies Group0.320.530.50NHHHFFuelPositive0.010.270.27ZTEKZentek0.011.251.00Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipCTMCastellum3.39%DUOTDuos Technologies Group42.61%NHHHFFuelPositiveN/AZTEKZentek0.77%Insider OwnershipCompanyInsider OwnershipCTMCastellum29.79%DUOTDuos Technologies Group11.62%NHHHFFuelPositiveN/AZTEKZentekN/ACompare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableCTMCastellum20786.04 million60.41 millionNot OptionableDUOTDuos Technologies Group7012.75 million10.95 millionNot OptionableNHHHFFuelPositiveN/A550.68 millionN/ANot OptionableZTEKZentek24104.71 millionN/ANot OptionableNHHHF, CTM, DUOT, and ZTEK HeadlinesRecent News About These CompaniesAmadeus IT Group (OTCMKTS:AMADY) and Zentek (NASDAQ:ZTEK) Critical SurveyJuly 24, 2025 | americanbankingnews.comZentek (NASDAQ:ZTEK) Trading Up 2.3% - Should You Buy?July 22, 2025 | marketbeat.comZentek Announces Management Transition - MorningstarJuly 13, 2025 | morningstar.comMZentek Announces Management Transition - Seeking AlphaJuly 13, 2025 | seekingalpha.comZentek CEO Greg Fenton to exit in 2026 as firm shifts focusJuly 13, 2025 | investing.comZentek Announces Management TransitionJuly 11, 2025 | accessnewswire.comAZentek Provides Regulatory Update on ZenGUARD(TM) Enhanced Air FiltersJune 26, 2025 | accessnewswire.comAZentek Announces Test Results Validating ZenGUARD(TM) Enhanced Air Filters as a High-Performance Solution for ASHRAE Standard 241 ComplianceJune 12, 2025 | accessnewswire.comAZentek Ltd.: Zentek Announces Agreement with RSK Environment Limited to Expand International Reach of ZenGUARD Enhanced Air FiltersMay 27, 2025 | finanznachrichten.deZentek Announces Agreement with RSK Environment Limited to Expand International Reach of ZenGUARD(TM) Enhanced Air FiltersMay 27, 2025 | accessnewswire.comAZentek Completes Sale of Corporate Office PropertyMay 15, 2025 | tipranks.comZentek Ltd.: Zentek Announces Completion of Sale of Corporate Court OfficeMay 15, 2025 | finanznachrichten.deZentek Announces Completion of Sale of Corporate Court OfficeMay 15, 2025 | accessnewswire.comAZentek Ltd.: Zentek Announces Purchase Order from Dexterra Group Inc. for ZenGUARD Enhanced Air FiltersApril 29, 2025 | finanznachrichten.deZentek Announces Purchase Order from Dexterra Group Inc. for ZenGUARD(TM) Enhanced Air FiltersApril 29, 2025 | accessnewswire.comAZentek completes first phase of Innovative Solutions Canada contractApril 24, 2025 | markets.businessinsider.comZentek Provides Update on ~$1.1 Million Innovative Solutions Canada Contract to Develop an Avian Influenza Countermeasure (H5N1) Using its Multivalent Aptamer TechnologyApril 23, 2025 | accessnewswire.comAZentek Sells Corporate Office in Strategic Asset ReviewApril 17, 2025 | tipranks.comZentek Announces Sale of Corporate Court OfficeApril 17, 2025 | accessnewswire.comAZentek completes testing of ZenARMOR corrosion prevention technologyApril 17, 2025 | markets.businessinsider.comZentek Advances ZenARMOR™ Technology with Successful Testing and New CollaborationApril 16, 2025 | tipranks.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeNHHHF, CTM, DUOT, and ZTEK Company DescriptionsCastellum NYSEAMERICAN:CTM$1.12 -0.07 (-5.88%) Closing price 08/1/2025 04:10 PM EasternExtended Trading$1.14 +0.01 (+1.34%) As of 08/1/2025 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.Castellum, Inc. provides services in the areas of cybersecurity, information technology, electronic and information warfare, and information operations. Its services include intelligence analysis, software development, software engineering, program management, strategic and mission planning, information assurance, cybersecurity and policy support, data analytics, and model based systems engineering services. It serves customers in the federal government, financial services, healthcare, and other data application sectors. The company is based in Bethesda, Maryland.Duos Technologies Group NASDAQ:DUOT$6.57 -0.20 (-2.95%) As of 08/1/2025 04:00 PM EasternDuos Technologies Group, Inc. designs, develops, deploys, and operates intelligent technology solutions in North America. The company provides solutions, such as Centraco, an enterprise information management software platform that consolidates data and events from multiple sources into a unified and distributive user interface; and truevue360, an integrated platform to develop and deploy artificial intelligence algorithms, including machine learning, computer vision, object detection, and deep neural network-based processing for real-time applications. Its proprietary applications include Railcar Inspection Portal that provides freight and transit railroad customers and select government agencies the ability to conduct fully automated railcar inspections of trains while they are moving at full speed. It also develops Automated Logistics Information System, which automates gatehouse operations, as well as develops solutions for rail, trucking, aviation, and other vehicle-based processes. In addition, the company provides consulting services, including consulting and auditing; software licensing with optional hardware sales; customer service training; and maintenance support. The company operates its services under the duostech brand. The company is headquartered in Jacksonville, Florida.FuelPositive OTCMKTS:NHHHF$0.05 +0.00 (+0.63%) As of 08/1/2025 03:53 PM EasternFuelPositive Corporation, a technology company, provides clean energy solutions in Canada. The company's clean technology solutions include green ammonia (NH3) for use in various industries and applications. Its flagship product is a green ammonia production system that takes air, water, and electricity to produce a non-polluting chemical for various applications, including fertilizer for farming, fuel for grain drying and internal combustion engines, a solution for grid storage, and an alternative for fuel cells. The company was formerly known as EEStor Corporation and changed its name to FuelPositive Corporation in February 2021. FuelPositive Corporation is headquartered in Waterloo, Canada.Zentek NASDAQ:ZTEK$0.82 -0.06 (-6.75%) Closing price 08/1/2025 03:53 PM EasternExtended Trading$0.81 -0.01 (-1.36%) As of 08/1/2025 07:46 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.Zentek Ltd., together with its subsidiaries, engages in the research and development of graphene and related nanomaterials in Canada. The company develops graphene-based antimicrobial coating under the ZenGUARD brand, surgical masks, HVAC filters, personal protective equipment, rapid detection point of care diagnostics tests, and pharmaceutical products based on graphene-based compounds. It is also developing graphene oxide synthesis and graphene synthesis. In addition, the company owns 100% interest in the Albany graphite project located in Northern Ontario, Canada. The company was formerly known as ZEN Graphene Solutions Ltd. and changed its name to Zentek Ltd. in October 2021. Zentek Ltd. was incorporated in 2008 and is headquartered in Guelph, Canada. 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