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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:AMTXNASDAQ:ARQNASDAQ: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 VolumeAMTXAemetis$2.04-6.0%$1.64$1.22▼$4.73$120.15M1.48775,041 shs829,749 shsARQARQ$4.99+2.7%$4.42$3.34▼$8.11$205.15M1.7261,583 shs193,807 shsVGASVerde Clean Fuels$3.43-3.7%$3.40$2.76▼$5.46$158.60M-0.4613,769 shs20,713 shsZTEKZentek$1.29-2.6%$1.47$0.50▼$1.84$138.74M0.5640,354 shs32,197 shs(Almost) Everything You Need To Know About The EV MarketLooking to profit from the electric vehicle mega-trend? Enter your email address and we'll send you our list of which EV stocks show the most long-term potential.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAMTXAemetis-5.99%-4.67%+15.91%+5.15%-32.45%ARQARQ+2.67%-3.11%+10.15%+9.91%-12.15%VGASVerde Clean Fuels-3.65%+2.39%-0.29%-2.00%-23.44%ZTEKZentek-2.64%-13.42%-16.23%+8.80%+21.70%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAMTXAemetis2.0441 of 5 stars3.43.00.00.01.40.80.6ARQARQ2.8715 of 5 stars3.52.00.00.01.23.31.3VGASVerde Clean Fuels0.0168 of 5 stars0.02.00.00.00.00.00.0ZTEKZentek0.4205 of 5 stars0.05.00.00.01.10.00.0Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAMTXAemetis 2.75Moderate Buy$13.43558.09% UpsideARQARQ 3.00Buy$9.0080.36% UpsideVGASVerde Clean Fuels 0.00N/AN/AN/AZTEKZentek 0.00N/AN/AN/ACurrent Analyst Ratings BreakdownLatest AMTX, ARQ, ZTEK, and VGAS Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails6/6/2025AMTXAemetisAscendiant Capital MarketsSubscribe to MarketBeat All Access for the recommendation accuracy ratingBoost Price TargetBuy ➝ Buy$19.00 ➝ $20.005/9/2025AMTXAemetisUBS GroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetBuy ➝ Buy$2.50 ➝ $2.205/8/2025ARQARQCanaccord Genuity GroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetBuy ➝ Buy$9.00 ➝ $8.00(Data available from 6/24/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAMTXAemetis$267.64M0.42N/AN/A($5.16) per share-0.40ARQARQ$108.96M1.93$0.10 per share49.99$5.17 per share0.97VGASVerde Clean FuelsN/AN/AN/AN/A$0.65 per shareN/AZTEKZentek$20K6,753.80N/AN/A$0.15 per share8.60Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateAMTXAemetis-$87.54M-$1.87N/AN/AN/A-36.92%N/A-35.80%7/30/2025 (Estimated)ARQARQ-$5.11M-$0.05N/A20.79N/A-1.30%-0.71%-0.54%8/11/2025 (Estimated)VGASVerde Clean Fuels-$3.33M-$0.48N/A∞N/AN/A-11.28%-10.26%N/AZTEKZentek-$8.68M-$0.07N/A∞N/A-16,555.32%-58.13%-50.87%6/25/2025 (Estimated)Latest AMTX, ARQ, ZTEK, and VGAS EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails5/14/2025Q1 2025VGASVerde Clean FuelsN/A-$0.08N/A-$0.08N/AN/A5/8/2025Q1 2025AMTXAemetis-$0.39-$0.47-$0.08-$0.47$59.35 million$42.89 million3/28/2025Q4 2024VGASVerde Clean FuelsN/A-$0.14N/A-$0.14N/AN/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAMTXAemetisN/AN/AN/AN/AN/AARQARQN/AN/AN/AN/AN/AVGASVerde Clean FuelsN/AN/AN/AN/AN/AZTEKZentekN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAMTXAemetisN/A0.160.03ARQARQ0.041.120.62VGASVerde Clean FuelsN/A19.4319.43ZTEKZentek0.011.831.48Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAMTXAemetis27.02%ARQARQ18.49%VGASVerde Clean Fuels15.61%ZTEKZentek0.77%Insider OwnershipCompanyInsider OwnershipAMTXAemetis15.90%ARQARQ23.89%VGASVerde Clean Fuels0.54%ZTEKZentekN/ACompare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAMTXAemetis16055.37 million46.57 millionOptionableARQARQ14042.21 million32.13 millionN/AVGASVerde Clean Fuels244.55 million44.31 millionNot OptionableZTEKZentek24104.71 millionN/ANot OptionableAMTX, ARQ, ZTEK, and VGAS HeadlinesRecent News About These CompaniesZentek Ltd. (NASDAQ:ZTEK) Short Interest Down 45.1% in MayJune 15, 2025 | 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 TimeAMTX, ARQ, ZTEK, and VGAS Company DescriptionsAemetis NASDAQ:AMTX$2.04 -0.13 (-5.99%) Closing price 06/23/2025 04:00 PM EasternExtended Trading$2.06 +0.02 (+0.93%) As of 06/23/2025 07:42 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.Aemetis, Inc. operates as a renewable natural gas and renewable fuels company. It operates through three segments: California Ethanol, California Dairy Renewable Natural Gas, and India Biodiesel. The company focuses on the operation, acquisition, development, and commercialization of technologies to produce low and negative carbon intensity renewable fuels that replace fossil-based products. In addition, it produces and sells ethanol; and wet distillers grains, distillers corn oil, and condensed distillers solubles to dairies and feedlots as animal feed. Further, the company markets and supplies USP alcohol and hand sanitizer; and produces renewable natural gas, as well as distilled biodiesel from various vegetable oil and animal waste feedstocks. Additionally, it researches and develops conversion technologies using waste feedstocks to produce biofuels and biochemicals. Furthermore, it sells biodiesel primarily to government oil marketing companies. Aemetis, Inc. is headquartered in Cupertino, California.ARQ NASDAQ:ARQ$4.99 +0.13 (+2.67%) Closing price 06/23/2025 04:00 PM EasternExtended Trading$5.00 +0.00 (+0.10%) As of 06/23/2025 04:12 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.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.Verde Clean Fuels NASDAQ:VGAS$3.43 -0.13 (-3.65%) Closing price 06/23/2025 04:00 PM EasternExtended Trading$3.46 +0.02 (+0.73%) As of 06/23/2025 04:04 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.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$1.29 -0.04 (-2.64%) Closing price 06/23/2025 03:59 PM EasternExtended Trading$1.30 +0.00 (+0.39%) As of 05:57 AM 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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