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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 NYSE:AMPX NASDAQ:BYRN NYSE:EAF NYSE:NPWR 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 VolumeAMPXAmprius Technologies$6.53+9.6%$3.30$0.61▼$6.93$702.84M2.683.07 million shs17.19 million shsBYRNByrna Technologies$25.42-21.3%$27.73$7.79▼$34.78$732.52M2.02527,446 shs3.17 million shsEAFGrafTech International$1.05+11.0%$1.00$0.52▼$2.53$243.02M1.512.73 million shs1.74 million shsNPWRNET Power$3.32-0.2%$2.22$1.48▼$14.28$727.30M0.7925,591 shs1.19 million shs7 AI Stocks to Invest in Today: Capitalizing on AI and Tech Trends in 2025Discover the top 7 AI stocks to invest in right now. This exclusive report highlights the companies leading the AI revolution and shaping the future of technology in 2025.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAMPXAmprius Technologies+7.72%+36.99%+90.48%+156.96%+380.00%BYRNByrna Technologies+0.40%+2.12%+9.08%+78.65%+223.65%EAFGrafTech International-0.39%-2.80%-27.21%+57.45%-6.31%NPWRNET Power+3.12%+29.41%+25.95%+40.13%-63.50%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAMPXAmprius Technologies3.3019 of 5 stars3.64.00.00.03.01.70.6BYRNByrna Technologies3.2488 of 5 stars3.61.00.00.03.11.71.9EAFGrafTech International1.6449 of 5 stars3.02.00.00.00.63.30.0NPWRNET Power1.3823 of 5 stars2.33.00.00.01.90.80.6Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAMPXAmprius Technologies 3.14Buy$10.1755.60% UpsideBYRNByrna Technologies 3.25Buy$36.3342.93% UpsideEAFGrafTech International 2.00Hold$1.6355.50% UpsideNPWRNET Power 2.67Moderate Buy$4.0020.66% UpsideCurrent Analyst Ratings BreakdownLatest EAF, BYRN, NPWR, and AMPX Analyst RatingsDateCompanyBrokerageActionRatingPrice TargetDetails7/10/2025AMPXAmprius TechnologiesB. RileySubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$6.00 ➝ $10.007/9/2025BYRNByrna TechnologiesRoth CapitalSubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$33.00 ➝ $37.006/6/2025BYRNByrna TechnologiesWolfe ResearchSubscribe to MarketBeat All Access for the recommendation accuracy ratingUpgradeStrong-Buy6/6/2025BYRNByrna TechnologiesB. RileySubscribe to MarketBeat All Access for the recommendation accuracy ratingReiterated RatingBuy ➝ Buy$38.00 ➝ $39.005/13/2025EAFGrafTech InternationalUBS GroupSubscribe to MarketBeat All Access for the recommendation accuracy ratingLower Price TargetNeutral ➝ Neutral$1.50 ➝ $0.804/23/2025NPWRNET PowerBarclaysSubscribe to MarketBeat All Access for the recommendation accuracy ratingDowngradeEqual Weight ➝ Underweight$3.00 ➝ $2.00(Data available from 7/10/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)Compare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAMPXAmprius Technologies$24.17M31.88N/AN/A$0.59 per share11.07BYRNByrna Technologies$85.76M6.72$0.30 per share84.95$2.39 per share10.64EAFGrafTech International$538.78M0.50N/AN/A($0.31) per share-3.37NPWRNET Power$250K2,904.87$0.15 per share22.16$3.03 per share1.09Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateAMPXAmprius Technologies-$44.67M-$0.410.00N/AN/A-133.34%-67.67%-38.69%8/6/2025 (Estimated)BYRNByrna Technologies$12.79M$0.6187.3066.89N/A15.15%16.96%13.08%7/10/2025 (Estimated)EAFGrafTech International-$131.16M-$0.540.00∞N/A-27.17%N/A-9.72%7/25/2025 (Estimated)NPWRNET Power-$49.19M-$2.060.00N/AN/AN/A-22.52%-7.12%8/11/2025 (Estimated)Latest EAF, BYRN, NPWR, and AMPX EarningsDateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails7/25/2025Q2 2025EAFGrafTech International-$0.13N/AN/AN/A$130.44 millionN/A7/10/2025Q2 2025BYRNByrna Technologies$0.03$0.10+$0.07$0.10$28.47 million$28,505.00 billion5/12/2025Q1 2025NPWRNET Power-$0.11-$1.55-$1.44-$1.55N/AN/A5/8/2025Q1 2025AMPXAmprius Technologies-$0.09-$0.08+$0.01-$0.08$8.52 million$11.28 million4/25/2025Q1 2025EAFGrafTech International-$0.15-$0.13+$0.02-$0.15$122.33 million$111.84 million4/10/2025Q1 2025BYRNByrna Technologies$0.02$0.07+$0.05$0.07$23.26 million$26.19 millionCompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAMPXAmprius TechnologiesN/AN/AN/AN/AN/ABYRNByrna TechnologiesN/AN/AN/AN/AN/AEAFGrafTech InternationalN/AN/AN/AN/AN/ANPWRNET PowerN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAMPXAmprius TechnologiesN/A4.744.45BYRNByrna TechnologiesN/A3.992.09EAFGrafTech InternationalN/A4.162.45NPWRNET PowerN/A23.3023.30Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAMPXAmprius Technologies5.04%BYRNByrna Technologies25.46%EAFGrafTech International92.83%NPWRNET Power53.62%Insider OwnershipCompanyInsider OwnershipAMPXAmprius Technologies12.90%BYRNByrna Technologies9.75%EAFGrafTech International0.72%NPWRNET Power2.71%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAMPXAmprius Technologies50117.93 million102.71 millionOptionableBYRNByrna Technologies15022.68 million20.47 millionOptionableEAFGrafTech International1,072258.15 million256.29 millionOptionableNPWRNET Power24219.07 million213.13 millionOptionableEAF, BYRN, NPWR, and AMPX HeadlinesRecent News About These CompaniesKuehn Law Encourages Investors of NET Power Inc. to Contact Law FirmJuly 9 at 1:09 PM | prnewswire.comNET Power (NYSE:NPWR) Trading Up 7.5% - Should You Buy?July 8 at 12:38 PM | marketbeat.comNET Power (NYSE:NPWR) Trading Down 6.5% - Should You Sell?July 7 at 11:55 AM | marketbeat.comStock Traders Buy Large Volume of Call Options on NET Power (NYSE:NPWR)July 4, 2025 | americanbankingnews.comNET Power (NYSE:NPWR) Sees Unusually-High Trading Volume - Here's What HappenedJuly 3, 2025 | marketbeat.comNET Power Sees Unusually High Options Volume (NYSE:NPWR)July 3, 2025 | marketbeat.comKuehn Law Encourages Investors of NET Power Inc. to Contact Law FirmJuly 2, 2025 | globenewswire.comNET Power (NYSE:NPWR) Trading Up 10.1% - Should You Buy?June 24, 2025 | marketbeat.comPomerantz Law Firm Announces the Filing of a Class Action Against NET Power Inc. and Certain Officers – NPWRJune 18, 2025 | globenewswire.comNPWR INVESTOR ALERT: Bronstein, Gewirtz & Grossman LLC Announces that NET Power Inc. Investors with Substantial Losses Have Opportunity to Lead Class Action LawsuitJune 17, 2025 | globenewswire.comNET Power (NYSE:NPWR) Shares Down 5% - Should You Sell?June 17, 2025 | marketbeat.comNPWR DEADLINE TODAY: ROSEN, TRUSTED INVESTOR COUNSEL, Encourages NET Power Inc. Investors to Secure Counsel Before Important June 17 Deadline in Securities Class Action - NPWR, NPWR.WSJune 17, 2025 | accessnewswire.comAPomerantz Law Firm Announces the Filing of a Class Action Against NET Power Inc. and Certain Officers - NPWRJune 17, 2025 | prnewswire.comInvestor Alert: Deadline Approaching to Join NET Power, Inc. (NPWR) Class Action - Contact Levi & KorsinskyJune 17, 2025 | accessnewswire.comAFINAL REMINDER NPWR DEADLINE: Bronstein, Gewirtz & Grossman LLC Alerts NET Power Inc. Investors to Participate in the Class Action LawsuitJune 17, 2025 | accessnewswire.comANET Power, Inc. Sued for Securities Law Violations - Investors Should Contact Levi & Korsinsky Before June 17, 2025 to Discuss Your Rights - NPWRJune 17, 2025 | prnewswire.comDeadline Soon: NET Power Inc. (NPWR) Investors Who Lost Money Urged To Contact The Law Offices of Frank R. Cruz About Securities Fraud LawsuitJune 16, 2025 | tmcnet.comNET Power Inc. (NYSE:NPWR) Sees Large Increase in Short InterestJune 16, 2025 | marketbeat.comClass Action Lawsuit Alert: Levi & Korsinsky Reminds NET Power, Inc. (NPWR) Investors of June 17, 2025 DeadlineJune 16, 2025 | accessnewswire.comALevi & Korsinsky Urges NET Power, Inc. (NPWR) Shareholders to Act Before Lead Plaintiff Deadline June 17, 2025June 16, 2025 | accessnewswire.comANET POWER 24 HOUR DEADLINE ALERT: FORMER LOUISIANA ATTORNEY GENERAL AND KAHN SWICK & FOTI, LLC REMIND INVESTORS WITH LOSSES IN EXCESS OF $100,000 of Deadline in Class Action Lawsuit Against NET Power Inc. - NPWRJune 16, 2025 | accessnewswire.comANew MarketBeat Followers Over TimeMedia Sentiment Over TimeEAF, BYRN, NPWR, and AMPX Company DescriptionsAmprius Technologies NYSE:AMPX$6.53 +0.57 (+9.63%) Closing price 03:59 PM EasternExtended Trading$6.42 -0.11 (-1.67%) As of 08:00 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.Amprius Technologies, Inc. produces and sells ultra-high energy density lithium-ion batteries for mobility applications. The company offers silicon nanowire anode batteries. Its batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites. The company was incorporated in 2008 and is headquartered in Fremont, California.Byrna Technologies NASDAQ:BYRN$25.42 -6.88 (-21.30%) Closing price 04:00 PM EasternExtended Trading$25.98 +0.56 (+2.18%) As of 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.Byrna Technologies Inc., a non-lethal defense technology company, provides non-lethal alternative solutions for law enforcement and private security. The company offers handheld personal security devices and shoulder-fired launchers without the need for background check or firearm license; and projectiles including chemical irritant, kinetic, and inert rounds. It offers self-defense aerosol products under the Byran Bad Guy Repellent brand; and accessories and related safety products, which includes carbon dioxide canisters, sighting systems, and holster under the Byran Banshee and Byran Shield brand, as well as Byrna-branded apparel. In addition, the company provides the products to the consumer market through Byrna e-commerce store and Amazon storefront, and network of local, regional and national outdoor and sporting goods stores, either directly or through distributors; and professional security market through Train the Trainer program and de-escalation methods. It operates in the United States, South Africa, Europe, South America, Asia, and Canada. The company was formerly known as Security Devices International, Inc. and changed its name to Byrna Technologies Inc. in March 2020. Byrna Technologies Inc. was incorporated in 2005 and is headquartered in Andover, Massachusetts.GrafTech International NYSE:EAF$1.04 +0.10 (+11.00%) Closing price 03:59 PM EasternExtended Trading$1.03 -0.01 (-1.44%) As of 07:52 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.GrafTech International Ltd. research, develops, manufactures, and sells graphite and carbon-based solutions worldwide. The company offers graphite electrodes to produce electric arc furnace steel and other ferrous and non-ferrous metals; and petroleum needle coke, a crystalline form of carbon used in the production of graphite electrodes and synthetic graphite. It sells its products primarily through direct sales force, independent sales representatives, and distributors. GrafTech International Ltd. was founded in 1886 and is headquartered in Brooklyn Heights, Ohio.NET Power NYSE:NPWR$3.32 -0.01 (-0.15%) Closing price 03:59 PM EasternExtended Trading$3.36 +0.04 (+1.36%) As of 07:48 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.NET Power Inc. operates as a clean energy technology company. The company invents, develops, and licenses clean power generation technology. NET Power Inc. was founded in 2010 and is headquartered in Durham, North Carolina. 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