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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:ALCC NYSE:HLGN NYSE:NYLD NASDAQ:OPTT 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 VolumeALCCAltC Acquisition$82.71+3.4%$70.01$10.27▼$18.80$2.53B-0.06723,393 shs12.60 million shsHLGNHeliogen$1.70+2.1%$1.55$0.68▼$3.28$10.42M2.9311,559 shs3,106 shsNYLDClearway Energy$20.10$20.10$15.55▼$20.75N/AN/A458,455 shs446,116 shsOPTTOcean Power Technologies$0.57+0.3%$0.56$0.14▼$1.75$103.69M2.497.78 million shs6.23 million shs The Best Nuclear Energy Stocks to BuyNuclear energy stocks are roaring. It's the hottest energy sector of the year. Cameco Corp, Paladin Energy, and BWX Technologies were all up more than 40% in 2024. The biggest market moves could still be ahead of us, and there are seven nuclear energy stocks that could rise much higher in the next several months. To unlock these tickers, enter your email address below.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceALCCAltC Acquisition0.00%+18.51%+12.29%+29.92%+1,210.78%HLGNHeliogen0.00%0.00%0.00%-11.46%+3.03%NYLDClearway Energy0.00%0.00%0.00%0.00%0.00%OPTTOcean Power Technologies0.00%+14.91%+17.24%+3.37%+194.51%Compare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeALCCAltC Acquisition$82.71+3.4%$70.01$10.27▼$18.80$2.53B-0.06723,393 shs12.60 million shsHLGNHeliogen$1.70+2.1%$1.55$0.68▼$3.28$10.42M2.9311,559 shs3,106 shsNYLDClearway Energy$20.10$20.10$15.55▼$20.75N/AN/A458,455 shs446,116 shsOPTTOcean Power Technologies$0.57+0.3%$0.56$0.14▼$1.75$103.69M2.497.78 million shs6.23 million shs The Best Nuclear Energy Stocks to BuyNuclear energy stocks are roaring. It's the hottest energy sector of the year. Cameco Corp, Paladin Energy, and BWX Technologies were all up more than 40% in 2024. The biggest market moves could still be ahead of us, and there are seven nuclear energy stocks that could rise much higher in the next several months. To unlock these tickers, enter your email address below.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceALCCAltC Acquisition0.00%+18.51%+12.29%+29.92%+1,210.78%HLGNHeliogen0.00%0.00%0.00%-11.46%+3.03%NYLDClearway Energy0.00%0.00%0.00%0.00%0.00%OPTTOcean Power Technologies0.00%+14.91%+17.24%+3.37%+194.51%Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceALCCAltC Acquisition 0.00N/AN/AN/AHLGNHeliogen 0.00N/AN/AN/ANYLDClearway Energy 0.00N/AN/AN/AOPTTOcean Power Technologies 0.00N/AN/AN/ACompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookALCCAltC AcquisitionN/AN/A$1.76 per share47.00($0.27) per shareN/AHLGNHeliogen$3.92M2.66N/AN/A($1.36) per share-1.25NYLDClearway EnergyN/AN/AN/AN/AN/AN/AOPTTOcean Power Technologies$5.86M17.69N/AN/A$0.32 per share1.79Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateALCCAltC Acquisition$11.87MN/A0.00∞N/AN/A-85.44%2.50%N/AHLGNHeliogen-$129.60M$6.39N/A∞N/AN/AN/A-147.90%11/6/2025 (Estimated)NYLDClearway EnergyN/A$1.0818.61∞N/AN/AN/AN/AN/AOPTTOcean Power Technologies-$27.48M-$0.17N/A∞N/A-304.91%-97.03%-72.36%N/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthALCCAltC AcquisitionN/AN/AN/AN/AN/AHLGNHeliogenN/AN/AN/AN/AN/ANYLDClearway Energy$1.286.37%N/A118.52%N/AOPTTOcean Power TechnologiesN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioALCCAltC AcquisitionN/A0.150.59HLGNHeliogenN/A0.460.46NYLDClearway EnergyN/AN/AN/AOPTTOcean Power TechnologiesN/A2.791.37Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipALCCAltC Acquisition85.03%HLGNHeliogen27.58%NYLDClearway Energy29.58%OPTTOcean Power Technologies11.93%Insider OwnershipCompanyInsider OwnershipALCCAltC Acquisition21.80%HLGNHeliogen3.80%NYLDClearway Energy0.24%OPTTOcean Power Technologies1.00%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableALCCAltC Acquisition230.60 million23.93 millionNo DataHLGNHeliogen1506.13 million5.82 millionNo DataNYLDClearway EnergyN/AN/AN/AOptionableOPTTOcean Power Technologies50180.65 million144.58 millionOptionableNYLD, ALCC, OPTT, and HLGN HeadlinesRecent News About These CompaniesOcean Power Technologies (NASDAQ:OPTT) Shares Pass Above 200-Day Moving Average - Here's What HappenedSeptember 14 at 3:39 AM | marketbeat.comOcean Power Technologies (NASDAQ:OPTT) Share Price Passes Above Two Hundred Day Moving Average - What's Next?September 6, 2025 | marketbeat.comOcean Power Technologies to Release Fiscal 2026 First Quarter Earnings on September 15, 2025September 2, 2025 | globenewswire.comOcean Power Technologies ships WAM-Vs to UAE, further expands fleet in regionSeptember 2, 2025 | proactiveinvestors.comOcean Power Technologies Announces Shipment of WAM-Vs to the UAESeptember 2, 2025 | globenewswire.comOcean Power Technologies grows Middle East footprint with Unique Group - ICYMIAugust 30, 2025 | proactiveinvestors.comOcean Power Technologies (NASDAQ:OPTT) Shares Pass Above Two Hundred Day Moving Average - Here's What HappenedAugust 29, 2025 | marketbeat.comOcean Power expands partnership with Unique GroupAugust 26, 2025 | msn.comOcean Power Technologies expands UAE partnership with Unique Group through new services agreementAugust 26, 2025 | proactiveinvestors.comOcean Power Technologies Expands Strategic Partnership with Unique Group Through Master Services Agreement for UAE OperationsAugust 26, 2025 | quiverquant.comQOcean Power Technologies Accelerates UAE Growth Strategy Through Expanded Partnership with Unique GroupAugust 26, 2025 | globenewswire.comOcean Power unveils major upgrade to Merrows MDASAugust 19, 2025 | msn.comOcean Power Technologies upgrades Merrows Maritime Domain Awareness SolutionAugust 19, 2025 | proactiveinvestors.comOcean Power Technologies Unveils Enhanced Merrows™ Maritime Domain Awareness SolutionAugust 19, 2025 | globenewswire.comOcean Power expands U.S. presents with new Washington, D.C. officeAugust 19, 2025 | msn.comOcean Power opens new office in Washington, D.C.August 19, 2025 | msn.comOcean Power Technologies opens office at AUVSI headquarters in Washington, DCAugust 18, 2025 | proactiveinvestors.comOcean Power Technologies Expands U.S. Presence with New Washington, D.C. Office at AUVSI HeadquartersAugust 18, 2025 | globenewswire.comOcean Power Technologies CEO urges New Jersey to back marine energy sectorAugust 15, 2025 | proactiveinvestors.comOcean Power Technologies CEO urges New Jersey to back marine energy sectorAugust 15, 2025 | proactiveinvestors.comOcean Power Technologies Highlights Marine Energy Leadership in Testimony Before New Jersey LegislatureAugust 14, 2025 | globenewswire.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeNYLD, ALCC, OPTT, and HLGN Company DescriptionsAltC Acquisition NYSE:ALCC$82.71 +2.74 (+3.43%) As of 09/12/2025AltC Acquisition Corp. does not have significant operations. It intends to effect a merger, capital stock exchange, asset acquisition, stock purchase, reorganization, or other business combination with one or more businesses. The company was formerly known as Churchill Capital Corp VIII and changed its name to AltC Acquisition Corp. in February 2021. AltC Acquisition Corp. was incorporated in 2021 and is based in New York, New York.Heliogen NYSE:HLGNHeliogen, Inc., together with its subsidiaries, develops and commercializes concentrated solar energy in the United States. It is developing a modular, AI-enabled, concentrated solar energy plant that will use an array of mirrors to reflect sunlight and capture, concentrate, store and convert it into cost-effective energy on demand. The company offers heliostat fields, and associated control systems, solar receivers, thermal energy storage, and heat engines. Its solutions include carbon-free steam production, a system that produces heat or steam for use in industrial processes; net zero power generation system, a turbine generator with the baseline system, which achieves net-zero emissions in electricity production; and green hydrogen production, and electrolyzer with the baseline system that produces green hydrogen fuel. The company also offers professional services, such as turnkey project construction, project site development, and research and development studies. It serves the food and beverage, mining and mineral processing, oil and gas, transportation, chemicals, cement, and metals manufacturing industries. The company was formerly known as Edison Microgrids, Inc. and changed its name to Heliogen, Inc. in November 2019. The company is headquartered in Pasadena, California.Clearway Energy NYSE:NYLDClearway Energy, Inc. engages in the ownership of contracted renewable and conventional generation facilities and thermal infrastructure assets. It operates through the following segments: Conventional Generation, Thermal, Renewable, and Corporate. The Renewable segment include solar and wind business. The Corporate segment consists company's corporate costs and include eliminating entries. The company was founded on December 20, 2012 and is headquartered in Princeton, NJ.Ocean Power Technologies NASDAQ:OPTT$0.57 +0.00 (+0.35%) Closing price 09/12/2025 04:00 PM EasternExtended Trading$0.55 -0.02 (-4.18%) As of 09/12/2025 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.Ocean Power Technologies, Inc. develops and commercializes proprietary power platforms that generate electricity by harnessing the renewable energy of ocean waves in North America, South America, Australia, and Asia. It offers PB3 PowerBuoy that generates power for use independent of the power grid in offshore locations. The company also provides Next Generation PowerBuoy; subsea battery systems; and software, controls, sensors, integration services, and marine installation services. In addition, it offers Wave Adaptive Modular Vessel (WAM-V) technology, which enables roaming capabilities for uncrewed maritime systems in waters; leases WAM-V robotics and access information; maritime domain awareness solutions; and strategic consulting services. Further, the company provides offshore data collection, integration, analytics, and real time communication for various applications. It serves public and private entities, and agencies that require remote offshore power. Ocean Power Technologies, Inc. was incorporated in 1984 and is headquartered in Monroe Township, New Jersey. 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