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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 NASDAQ:ARQNASDAQ:BLGONASDAQ:VGASNASDAQ: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 VolumeARQARQ$5.11+2.6%$4.26$3.34▼$8.11$215.74M1.7262,634 shs38,544 shsBLGOBioLargo$0.20-2.1%$0.22$0.16▼$0.32$59.59M0.12288,388 shs252,972 shsVGASVerde Clean Fuels$3.23+0.3%$3.41$2.76▼$5.46$143.90M-0.4613,591 shs506 shsZTEKZentek$1.46+1.7%$1.42$0.50▼$1.84$152.32M0.5640,708 shs16,817 shs13 Stocks Institutional Investors Won't Stop BuyingWhich stocks are hedge funds and endowments buying in today's market? Enter your email address and we'll send you MarketBeat's list of thirteen stocks that institutional investors are buying now.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceARQARQ0.00%-6.04%+6.41%+3.75%-17.41%BLGOBioLargo0.00%-9.09%-6.93%-23.08%-29.82%VGASVerde Clean Fuels0.00%-1.23%-8.00%-18.07%-28.44%ZTEKZentek0.00%-4.03%-10.06%+55.43%+34.27%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationARQARQ2.9508 of 5 stars3.52.00.00.01.63.31.3BLGOBioLargo0.7381 of 5 stars0.05.00.00.01.90.80.0VGASVerde Clean Fuels0.2548 of 5 stars0.02.00.00.03.30.00.0ZTEKZentek0.9056 of 5 stars0.05.00.00.03.40.00.0Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceARQARQ 3.00Buy$9.0076.13% UpsideBLGOBioLargo 0.00N/AN/AN/AVGASVerde Clean Fuels 0.00N/AN/AN/AZTEKZentek 0.00N/AN/AN/ACurrent Analyst Ratings BreakdownLatest BLGO, ARQ, ZTEK, and VGAS Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails5/8/2025ARQARQCanaccord Genuity GroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetBuy ➝ Buy$9.00 ➝ $8.00(Data available from 6/16/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookARQARQ$114.47M1.88N/AN/A$5.37 per share0.95BLGOBioLargo$12.23M4.87N/AN/A$0.01 per share19.58VGASVerde Clean FuelsN/AN/AN/AN/A$0.90 per shareN/AZTEKZentek$64.66K2,355.80N/AN/A$0.11 per share13.23Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateARQARQ-$12.25M-$0.05N/A21.29N/A-0.44%-0.25%-0.19%8/11/2025 (Estimated)BLGOBioLargo-$3.50M-$0.01N/A∞N/A-11.45%-39.90%-22.06%N/AVGASVerde Clean Fuels-$2.74M-$0.48N/A∞N/AN/A-12.11%-10.72%N/AZTEKZentek-$8.68M-$0.07N/A∞N/A-16,555.32%-58.13%-50.87%6/25/2025 (Estimated)Latest BLGO, ARQ, ZTEK, and VGAS EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails5/14/2025Q1 2025VGASVerde Clean FuelsN/A-$0.08N/A-$0.08N/AN/A3/28/2025Q4 2024VGASVerde Clean FuelsN/A-$0.14N/A-$0.14N/AN/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthARQARQN/AN/AN/AN/AN/ABLGOBioLargoN/AN/AN/AN/AN/AVGASVerde Clean FuelsN/AN/AN/AN/AN/AZTEKZentekN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioARQARQ0.082.892.28BLGOBioLargo0.032.312.24VGASVerde Clean FuelsN/A6.476.47ZTEKZentek0.011.831.48Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipARQARQ18.49%BLGOBioLargo0.04%VGASVerde Clean Fuels15.61%ZTEKZentek0.77%Insider OwnershipCompanyInsider OwnershipARQARQ23.89%BLGOBioLargo19.30%VGASVerde Clean Fuels1.80%ZTEKZentekN/ACompare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableARQARQ14042.21 million30.74 millionN/ABLGOBioLargo30304.36 million240.17 millionNot OptionableVGASVerde Clean Fuels244.55 million31.88 millionNot OptionableZTEKZentek24104.69 millionN/ANot OptionableBLGO, ARQ, ZTEK, and VGAS HeadlinesRecent News About These CompaniesZentek Ltd. (NASDAQ:ZTEK) Short Interest Down 45.1% in MayJune 15 at 8:50 AM | marketbeat.comZentek Announces Test Results Validating ZenGUARD(TM) Enhanced Air Filters as a High-Performance Solution for ASHRAE Standard 241 ComplianceJune 12, 2025 | accessnewswire.comZentek Ltd. (NASDAQ:ZTEK) Sees Significant Decrease in Short InterestJune 1, 2025 | marketbeat.comZentek (NASDAQ:ZTEK) Shares Down 2.8% - Here's WhyMay 28, 2025 | marketbeat.comZentek 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.comZentek 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.comZentek 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.comZentek 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.comZentek Sells Corporate Office in Strategic Asset ReviewApril 17, 2025 | tipranks.comZentek Announces Sale of Corporate Court OfficeApril 17, 2025 | accessnewswire.comZentek completes testing of ZenARMOR corrosion prevention technologyApril 17, 2025 | markets.businessinsider.comZentek Advances ZenARMOR™ Technology with Successful Testing and New CollaborationApril 16, 2025 | tipranks.comZentek Completes Testing of ZenARMOR(TM) Corrosion Prevention Technology as part of its Innovative Solutions Canada Testing Stream and Announces a New Collaboration with Jazeera Paints CompanyApril 16, 2025 | accessnewswire.comZentek enters partnership with Filtration Solutions Industrial Co.April 15, 2025 | markets.businessinsider.comZentek Announce Strategic Partnership with Filtration Solutions Industrial Co. to Manufacture and Distribute Graphene-Enhanced HVAC FiltersApril 14, 2025 | accessnewswire.comZentek Announces Closing of $2,000,000 Non-Brokered Private Placement of Debenture UnitsApril 9, 2025 | newsfilecorp.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeBLGO, ARQ, ZTEK, and VGAS Company DescriptionsARQ NASDAQ:ARQ$5.11 +0.13 (+2.61%) As of 12:25 PM Eastern This is a fair market value price provided by Polygon.io. Learn more.Arq, Inc. is a holding company. It engages in the provision of environmental and emission control equipment to the power generation industry. The company operates through the following Segments: Refined Coal and Advanced Purification Technologies. The Refined Coal segment includes the Tinuum Group, Tinuum Services, and GWN Manager. The Advanced Purification Technologies segment refers to the sale of Activated Carbon Injection and Dry Sorbent Injection equipment systems, chemical sales, consulting services, and other sales related to the reduction of emissions in the coal-fired electric generation process and the electric utility industry. The company was founded in 1996 and is headquartered in Greenwood Village, CO.BioLargo NASDAQ:BLGO$0.20 0.00 (-2.10%) As of 12:06 PM EasternBioLargo, Inc. invents, develops, and commercializes various platform technologies. Its technologies solve challenging environmental problems comprising per - and polyfluoroalkyl substances (PFAS) water contamination, advanced water and wastewater treatment, industrial odor and volatile organic compounds control, air quality control, infection control, and myriad environmental remediation. The company provides full-service environmental engineering services. BioLargo, Inc. was incorporated in 1991 and is based in Westminster, California.Verde Clean Fuels NASDAQ:VGAS$3.23 +0.01 (+0.31%) As of 11:56 AM Eastern This is a fair market value price provided by Polygon.io. Learn more.Verde Clean Fuels, Inc., operates as a clean energy technology company in the United States. It specializes in the conversion of synthesis gas, or syngas, derived from feedstocks, such as biomass, natural gas, and other feedstocks into liquid hydrocarbons that can be used as gasoline through proprietary liquid fuels technology. Verde Clean Fuels, Inc. was founded in 2007 and is headquartered in Houston, Texas.Zentek NASDAQ:ZTEK$1.46 +0.03 (+1.75%) As of 11:53 AM Eastern This is a fair market value 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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