Compare Stocks Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities. 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:ADN NASDAQ:HTOO NASDAQ:POLA NASDAQ:XPON 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 VolumeADNAdvent Technologies$0.87-67.9%$1.97$0.90▼$6.18$3.18M0.81550,271 shs4.53 million shsHTOOFusion Fuel Green$3.01-4.7%$2.97$2.41▼$13.61$9.54M1.7545,872 shs53,961 shsPOLAPolar Power$2.06+0.5%$1.80$1.31▼$5.75$7.50M1.13396,929 shs198,244 shsXPONExpion360$0.52+0.4%$0.65$0.49▼$5.50$5.97M0.54145,441 shs379,827 shsTen Starter Stocks For Beginners to Buy NowJust getting into the stock market? These 10 simple stocks can help beginning investors build long-term wealth without knowing options, technicals, or other advanced strategies.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceADNAdvent Technologies0.00%0.00%0.00%0.00%-58.37%HTOOFusion Fuel Green-4.75%+0.67%-6.81%-15.92%-74.07%POLAPolar Power+0.49%+26.38%+19.77%+34.64%+14.13%XPONExpion360+0.42%-11.19%-27.53%-27.67%-30.64%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeADNAdvent Technologies$0.87-67.9%$1.97$0.90▼$6.18$3.18M0.81550,271 shs4.53 million shsHTOOFusion Fuel Green$3.01-4.7%$2.97$2.41▼$13.61$9.54M1.7545,872 shs53,961 shsPOLAPolar Power$2.06+0.5%$1.80$1.31▼$5.75$7.50M1.13396,929 shs198,244 shsXPONExpion360$0.52+0.4%$0.65$0.49▼$5.50$5.97M0.54145,441 shs379,827 shsTen Starter Stocks For Beginners to Buy NowJust getting into the stock market? These 10 simple stocks can help beginning investors build long-term wealth without knowing options, technicals, or other advanced strategies.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceADNAdvent Technologies0.00%0.00%0.00%0.00%-58.37%HTOOFusion Fuel Green-4.75%+0.67%-6.81%-15.92%-74.07%POLAPolar Power+0.49%+26.38%+19.77%+34.64%+14.13%XPONExpion360+0.42%-11.19%-27.53%-27.67%-30.64%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceADNAdvent Technologies 1.00SellN/AN/AHTOOFusion Fuel Green 1.00SellN/AN/APOLAPolar Power 1.00SellN/AN/AXPONExpion360 1.00SellN/AN/ACurrent Analyst Ratings BreakdownLatest ADN, HTOO, POLA, and XPON Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails5/14/2026HTOOFusion Fuel Green Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingUpgradeSell (E+) ➝ Sell (D)5/1/2026POLAPolar Power Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingDowngradeSell (D-) ➝ Sell (E+)4/20/2026XPONExpion360 Weiss RatingsSubscribe to MarketBeat All Access for the firm's recommendation accuracy ratingReiterated RatingSell (E+)(Data available from 5/23/2023 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookADNAdvent Technologies$115K27.67N/AN/A($8.08) per share-0.11HTOOFusion Fuel Green$16.87M0.54N/AN/A$12.81 per share0.23POLAPolar Power$6.30M1.19N/AN/A$0.66 per share3.12XPONExpion360$9.65M0.62N/AN/A$0.53 per share0.99Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateADNAdvent Technologies-$40.99M-$6.31N/AN/AN/AN/AN/A-239.12%N/AHTOOFusion Fuel Green-$1.92MN/AN/AN/AN/AN/AN/AN/AN/APOLAPolar Power-$9.13M-$3.14N/AN/AN/A-127.53%-259.19%-63.38%N/AXPONExpion360-$6.24M-$1.18N/AN/AN/A-74.66%-115.70%-78.46%N/ALatest ADN, HTOO, POLA, and XPON EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails5/20/2026Q1 2026POLAPolar Power-$0.63-$0.05+$0.58-$0.05$3.80 million$1.73 million5/15/2026Q1 2026XPONExpion360N/A-$0.17N/A-$0.17N/A$1.57 million5/7/2026H2 2025HTOOFusion Fuel Green-$12.1777-$0.6850+$11.4927-$0.6850$3.54 million$4.37 million4/15/2026Q4 2025POLAPolar Power-$0.42-$1.35-$0.93-$1.35$5.00 million$0.60 million3/17/2026Q4 2025XPONExpion360N/A-$0.70N/A-$0.70N/A$2.22 millionCompare DividendsCompanyAnnual PayoutDividend Yield5-Year Annualized Dividend GrowthPayout RatioYears of Consecutive GrowthADNAdvent TechnologiesN/AN/AN/AN/AN/AHTOOFusion Fuel GreenN/AN/AN/AN/AN/APOLAPolar PowerN/AN/AN/AN/AN/AXPONExpion360N/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioADNAdvent TechnologiesN/A0.050.05HTOOFusion Fuel GreenN/A0.530.51POLAPolar PowerN/A1.230.06XPONExpion3600.036.444.20Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipADNAdvent Technologies17.52%HTOOFusion Fuel Green17.82%POLAPolar Power26.10%XPONExpion36034.50%Insider OwnershipCompanyInsider OwnershipADNAdvent Technologies4.03%HTOOFusion Fuel Green18.70%POLAPolar Power30.80%XPONExpion3601.56%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableADNAdvent Technologies2003.66 million3.51 millionNo DataHTOOFusion Fuel Green803.02 million2.45 millionNo DataPOLAPolar Power1003.64 million2.52 millionNot OptionableXPONExpion3602011.44 million11.26 millionNot OptionableADN, HTOO, POLA, and XPON HeadlinesRecent News About These CompaniesXPON Incurs Loss in Q1, Revenues Down Y/Y on Soft OEM DemandMay 21 at 2:47 PM | zacks.comExpion360 Deepens Forest River Relationship, Adding Georgetown and Dynamax Grand Sport LinesMay 19, 2026 | globenewswire.comExpion360 Reports First Quarter 2026 Financial and Operational ResultsMay 15, 2026 | globenewswire.comExpion360 Incurs Loss in 2025, Narrows Y/Y on Battery DemandMarch 23, 2026 | zacks.comExpion360 Reports Fourth Quarter and Full Year 2025 Financial and Operational ResultsMarch 17, 2026 | globenewswire.comExpion360 Partners with Dealer Accessory Supply to Launch DASGen Hybrid Energy Storage System for Industrial ApplicationsFebruary 17, 2026 | quiverquant.comQExpion360 and Dealer Accessory Supply Announce Strategic Partnership for Launch of DASGen Hybrid Energy Storage SystemFebruary 17, 2026 | globenewswire.comExpion360 Inc. Launches Next-Generation Battery Models to Enhance Performance in Industrial and Commercial ApplicationsFebruary 5, 2026 | quiverquant.comQExpion360 Announces Next-Generation Lithium Battery ModelsFebruary 5, 2026 | globenewswire.comExpion360 Faces Nasdaq Listing Compliance and Delisting RiskJanuary 30, 2026 | tipranks.comZacks Initiates Coverage of Expion360 With Neutral RecommendationJanuary 29, 2026 | zacks.comExpion360 Reports Select Preliminary, Unaudited 2025 Financial ResultsJanuary 28, 2026 | globenewswire.comExpion360 Issues Stockholder LetterJanuary 13, 2026 | globenewswire.comExpion360 Enters $15M Sales Agreement with AegisDecember 15, 2025 | tipranks.comExpion360 Reports Third Quarter 2025 Financial and Operational ResultsNovember 13, 2025 | globenewswire.comExpion360 Inc. Appoints Joseph Hammer as CEO and Chairman to Drive Strategic GrowthOctober 28, 2025 | quiverquant.comQExpion360 Appoints Joseph Hammer as Chief Executive Officer and Chairman of the BoardOctober 28, 2025 | globenewswire.comExpion360 Regains Nasdaq Compliance After Equity AdjustmentSeptember 25, 2025 | tipranks.comExpion360 Promotes Controller to CFOSeptember 9, 2025 | marketwatch.comExpion360 Inc. Appoints Shawna Bowin as Chief Financial Officer to Drive Company GrowthSeptember 8, 2025 | quiverquant.comQNew MarketBeat Followers Over TimeMedia Sentiment Over TimeADN, HTOO, POLA, and XPON Company DescriptionsAdvent Technologies NASDAQ:ADNAdvent Technologies Holdings, Inc., an advanced materials and technology development company, operates in the fuel cell and hydrogen technology markets in North America, Europe, and Asia. It develops, manufactures, and assembles fuel cell systems and critical components that determine the performance of hydrogen fuel cells and other energy systems. The company offers high-temperature proton exchange membrane (HT-PEM) fuel cells, including membrane electrode assemblies, bipolar plates, and reformers, as well as provides fuel-cell stack assembly and testing services. It serves stationary power, portable power, automotive, aviation, energy storage, and sensor markets. The company is headquartered in Boston, Massachusetts.Fusion Fuel Green NASDAQ:HTOO$3.01 -0.15 (-4.75%) Closing price 05/22/2026 04:00 PM EasternExtended Trading$3.02 +0.01 (+0.17%) As of 05/22/2026 07:43 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 Massive. Learn more.Fusion Fuel Green PLC, together with its subsidiaries, manufactures and sells miniaturized PEM electrolyzers to produce green hydrogen in Portugal, Spain, and rest of southern Europe. The company offers HEVO-Chain, a centralized PEM electrolyzer; and HEVO-Solar, a grid-independent hydrogen generator. It also provides engineering and procurement services comprising advisory, concept and proposal developments; FEL I, II and III studies; construction and legalization services; and operation and maintenance services. In addition, the company is involved in hydrogen project development. It serves natural gas networks and grids, oil refineries, ammonia producers, regulators, and related government departments. Fusion Fuel Green PLC was founded in 2018 and is based in Dublin, Ireland.Polar Power NASDAQ:POLA$2.06 +0.01 (+0.49%) Closing price 05/22/2026 04:00 PM EasternExtended Trading$2.09 +0.03 (+1.31%) As of 05/22/2026 07:25 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 Massive. Learn more.Polar Power, Inc. designs, manufactures, and sells direct current (DC) power generators, renewable energy, and cooling systems in the United States and internationally. The company offers DC base power systems, DC hybrid power systems, DC solar hybrid power systems, and mobile power systems. Its DC power systems are available in diesel, natural gas, LPG/propane, and renewable fuel formats. It serves customers in the telecommunications, military, commercial, industrial, and marine markets. In addition, the company sells its products through a direct sales force, and independent service providers and dealers. The company was formerly known as Polar Products, Inc. and changed its name to Polar Power, Inc. in October 1991. Polar Power, Inc. was incorporated in 1979 and is based in Gardena, California.Expion360 NASDAQ:XPON$0.52 +0.00 (+0.42%) Closing price 05/22/2026 04:00 PM EasternExtended Trading$0.52 0.00 (-0.38%) As of 05/22/2026 06:22 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 Massive. Learn more.Expion360 Inc. designs, assembles, manufactures, and sells lithium iron phosphate batteries and supporting accessories under the VPR 4EVER name for recreational vehicles, marine, golf, industrial, residential, and off-the-grid applications. It provides battery monitors; direct current battery chargers; various models of industrial tie-downs; power generators AURA POWERCAP; terminal blocks; and bus bars. The company also engages in the development of e360 Home Energy Storage systems; e360 SmartTalk mobile application. It serves dealers, wholesalers, private label customers, and original equipment manufacturers in the United States and internationally. The company was formerly known as Yozamp Products Company, LLC and changed its name to Expion360 Inc. in November 2021. Expion360 Inc. was founded in 2016 and is headquartered in Redmond, Oregon. 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