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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:ADURNASDAQ:ARQNYSE:FSINASDAQ: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 VolumeADURAduro Clean Technologies$8.39+3.1%$5.37$2.86▼$9.23$238.60MN/A90,130 shs90,224 shsARQARQ$4.89+1.5%$4.00$3.34▼$8.11$206.41M1.51261,550 shs259,459 shsFSIFlexible Solutions International$4.36+2.6%$4.20$1.65▼$7.24$55.15M1.23123,171 shs8,433 shsZTEKZentek$1.54-1.9%$1.33$0.50▼$1.84$161.22M0.7343,259 shs34,435 shsElon Musk's Next MoveExplore Elon Musk’s boldest ventures yet—from AI and autonomy to space colonization—and find out how investors can ride the next wave of innovation.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceADURAduro Clean Technologies-5.79%+17.97%+88.86%+49.36%+813,999,900.00%ARQARQ+6.40%+13.41%+32.05%-9.74%-32.78%FSIFlexible Solutions International-7.41%-5.13%+9.68%-27.72%+97.67%ZTEKZentek+1.95%-2.25%+21.71%+68.26%+45.37%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationADURAduro Clean TechnologiesN/AN/AN/AN/AN/AN/AN/AN/AARQARQ3.3547 of 5 stars3.52.00.00.03.83.31.3FSIFlexible Solutions InternationalN/AN/AN/AN/AN/AN/AN/AN/AZTEKZentek0.2523 of 5 stars0.03.00.00.02.70.00.0Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceADURAduro Clean Technologies 3.00Buy$50.00495.95% UpsideARQARQ 3.00Buy$9.0084.05% UpsideFSIFlexible Solutions International 0.00N/AN/AN/AZTEKZentek 0.00N/AN/AN/ACurrent Analyst Ratings BreakdownLatest FSI, ADUR, ARQ, and ZTEK Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails5/8/2025ARQARQCanaccord Genuity GroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetBuy ➝ Buy$9.00 ➝ $8.004/17/2025ADURAduro Clean TechnologiesD. Boral CapitalSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$50.00 ➝ $50.003/6/2025ADURAduro Clean TechnologiesD. Boral CapitalSubscribe to MarketBeat All Access for the recommendation accuracy ratingInitiated CoverageBuy$50.00(Data available from 5/28/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookADURAduro Clean Technologies$258.79K921.96N/AN/AN/A∞ARQARQ$114.47M1.80N/AN/A$5.37 per share0.91FSIFlexible Solutions International$36.48M1.51$0.24 per share18.10$3.08 per share1.42ZTEKZentek$64.66K2,501.36N/AN/A$0.11 per share14.04Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateADURAduro Clean TechnologiesN/A-$0.25N/A∞N/AN/AN/AN/AN/AARQARQ-$12.25M-$0.05N/A20.38N/A-0.44%-0.25%-0.19%8/11/2025 (Estimated)FSIFlexible Solutions International$2.78M$0.1813.2112.11N/A10.80%10.61%7.32%N/AZTEKZentek-$8.68M-$0.07N/A∞N/A-16,555.32%-58.13%-50.87%6/25/2025 (Estimated)Latest FSI, ADUR, ARQ, and ZTEK EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails3/5/2025Q4 2024ARQARQ-$0.03-$0.03N/A-$0.03$28.34 million$27.04 millionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthADURAduro Clean TechnologiesN/AN/AN/AN/AN/AARQARQN/AN/AN/AN/AN/AFSIFlexible Solutions International$0.153.44%N/A83.33%N/AZTEKZentekN/AN/AN/AN/AN/ALatest FSI, ADUR, ARQ, and ZTEK DividendsAnnouncementCompanyPeriodAmountYieldEx-Dividend DateRecord DatePayable Date5/7/2025FSIFlexible Solutions Internationalspecial$0.105/19/20255/19/20255/28/2025(Data available from 1/1/2013 forward)Compare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioADURAduro Clean TechnologiesN/AN/AN/AARQARQ0.082.892.28FSIFlexible Solutions International0.173.172.22ZTEKZentek0.011.831.48Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipADURAduro Clean TechnologiesN/AARQARQ18.49%FSIFlexible Solutions International54.31%ZTEKZentek0.77%Insider OwnershipCompanyInsider OwnershipADURAduro Clean TechnologiesN/AARQARQ26.87%FSIFlexible Solutions International35.50%ZTEKZentekN/ACompare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableADURAduro Clean TechnologiesN/A28.44 millionN/AN/AARQARQ14042.21 million30.74 millionN/AFSIFlexible Solutions International4012.65 million8.03 millionNot OptionableZTEKZentek24104.69 millionN/ANot OptionableFSI, ADUR, ARQ, and ZTEK HeadlinesRecent News About These CompaniesZentek (NASDAQ:ZTEK) Shares Down 2.8% - Here's WhyMay 28 at 2:18 AM | marketbeat.comZentek Ltd.: Zentek Announces Agreement with RSK Environment Limited to Expand International Reach of ZenGUARD Enhanced Air FiltersMay 27 at 8:26 AM | finanznachrichten.deZentek Announces Agreement with RSK Environment Limited to Expand International Reach of ZenGUARD(TM) Enhanced Air FiltersMay 27 at 8:00 AM | 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.comAnson Funds Management LP Makes New $145,000 Investment in Zentek Ltd. (NASDAQ:ZTEK)May 5, 2025 | marketbeat.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.comZentek Announces Closing of $2,000,000 Non-Brokered Private Placement of Debenture UnitsApril 9, 2025 | newsfilecorp.comZentek Faces Tax Reassessment Following CRA AuditMarch 21, 2025 | tipranks.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeFSI, ADUR, ARQ, and ZTEK Company DescriptionsAduro Clean Technologies NASDAQ:ADUR$8.39 +0.25 (+3.07%) As of 04:00 PM EasternAduro Clean Technologies is a developer of patented water-based technologies to chemically recycle waste plastics; convert heavy crude and bitumen into lighter, more valuable oil and transform renewable oils into higher-value fuels or renewable chemicals. Aduro Clean Technologies is based in LONDON, Ontario.ARQ NASDAQ:ARQ$4.89 +0.07 (+1.45%) Closing price 04:00 PM EasternExtended Trading$5.12 +0.23 (+4.70%) As of 06:39 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.Flexible Solutions International NYSE:FSI$4.36 +0.11 (+2.59%) Closing price 03:59 PM EasternExtended Trading$4.33 -0.03 (-0.78%) As of 04:24 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.Flexible Solutions International, Inc., together with its subsidiaries, develops, manufactures, and markets specialty chemicals that slow the evaporation of water in Canada, the United States, and internationally. The company operates in two segments, Energy and Water Conservation Products, and Biodegradable Polymers. The company offers thermal polyaspartates (TPAs) for oilfields to reduce scale and corrosion in various water systems; and for the agricultural industry to reduce fertilizer crystallization before, during, and after application, as well as to prevent crystal formation between fertilizer and minerals present in the soil. It also provides TPAs for irrigation to prevent early plugging of drip irrigation ports, reduce maintenance costs, and lengthen the life of equipment; TPAs for cleaning products to prevents the re-deposition of dirt onto the surfaces; and TPAs as additives for household laundry detergents, consumer care products, and pesticides. In addition, the company offers nitrogen conservation products for agriculture that slow down nitrogen loss from fields. Further, it provides HEATSAVR, a chemical product for use in swimming pools and spas that forms a thin and transparent layer on the water's surface; and WATERSAVR to reduce water evaporation in reservoirs, potable water storage tanks, livestock watering ponds, aqueducts, canals, and irrigation ditches, as well as for lawn and turf care, and potted and bedding plants. The company was incorporated in 1991 and is headquartered in Taber, Canada.Zentek NASDAQ:ZTEK$1.54 -0.03 (-1.91%) Closing price 03:59 PM EasternExtended Trading$1.56 +0.01 (+0.97%) As of 05:23 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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