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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 NASDAQ:CAFD NYSE:HLGN 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$71.06-3.5%$64.44$10.27▼$18.80$2.17B-0.06723,393 shs10.59 million shsCAFD(CAFD)$12.42$12.42$11.69▼$15.92N/AN/A247,583 shsN/AHLGNHeliogen$1.70+2.1%$1.54$0.68▼$3.28$10.42M2.9311,559 shs3,106 shsOPTTOcean Power Technologies$0.49-1.3%$0.56$0.14▼$1.75$88.44M2.628.26 million shs2.04 million shsReduce the RiskMarket downturns give many investors pause, and for good reason. Wondering how to offset this risk? Enter your email address to learn more about using beta to protect your portfolio.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceALCCAltC Acquisition-3.53%-5.66%+10.39%+88.39%+857.68%CAFD(CAFD)0.00%0.00%0.00%0.00%0.00%HLGNHeliogen0.00%0.00%+36.00%-35.36%-24.44%OPTTOcean Power Technologies0.00%-7.40%-29.76%-14.66%+149.54%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationALCCAltC AcquisitionN/AN/AN/AN/AN/AN/AN/AN/ACAFD(CAFD)N/AN/AN/AN/AN/AN/AN/AN/AHLGNHeliogen0.3352 of 5 stars0.02.00.00.03.70.00.0OPTTOcean Power Technologies0.2345 of 5 stars0.02.00.00.03.10.00.0Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceALCCAltC Acquisition 0.00N/AN/AN/ACAFD(CAFD) 0.00N/AN/AN/AHLGNHeliogen 0.00N/AN/AN/AOPTTOcean Power Technologies 0.00N/AN/AN/ACompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookALCCAltC AcquisitionN/AN/A$1.51 per share47.00($0.27) per shareN/ACAFD(CAFD)N/AN/AN/AN/AN/AN/AHLGNHeliogen$3.92M2.66N/AN/A($1.36) per share-1.25OPTTOcean Power Technologies$5.86M15.09N/AN/A$0.32 per share1.53Compare 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/ACAFD(CAFD)N/A$0.8614.44∞N/AN/AN/AN/AN/AHLGNHeliogen-$129.60M$6.39N/A∞N/AN/AN/A-147.90%N/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/ACAFD(CAFD)$1.129.02%N/A130.23%N/AHLGNHeliogenN/AN/AN/AN/AN/AOPTTOcean Power TechnologiesN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioALCCAltC AcquisitionN/A0.150.59CAFD(CAFD)N/AN/AN/AHLGNHeliogenN/A0.460.46OPTTOcean Power TechnologiesN/A2.791.37Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipALCCAltC Acquisition85.03%CAFD(CAFD)12.70%HLGNHeliogen27.58%OPTTOcean Power Technologies11.93%Insider OwnershipCompanyInsider OwnershipALCCAltC Acquisition21.80%CAFD(CAFD)N/AHLGNHeliogen3.80%OPTTOcean Power Technologies1.00%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableALCCAltC Acquisition230.60 million23.93 millionNo DataCAFD(CAFD)N/AN/AN/AOptionableHLGNHeliogen5,3056.13 million5.82 millionNo DataOPTTOcean Power Technologies50180.65 million144.58 millionOptionableCAFD, ALCC, OPTT, and HLGN HeadlinesRecent News About These CompaniesOcean Power Technologies CEO urges New Jersey to back marine energy sectorAugust 15 at 9:20 AM | proactiveinvestors.comOcean Power Technologies CEO urges New Jersey to back marine energy sectorAugust 15 at 9:07 AM | proactiveinvestors.comOcean Power Technologies Highlights Marine Energy Leadership in Testimony Before New Jersey LegislatureAugust 14 at 4:15 PM | globenewswire.comOcean Power Technologies Signs New Sales AgreementAugust 12, 2025 | theglobeandmail.comOcean Power Technologies Partners with Greensea IQ for Autonomous Hull MaintenanceAugust 10, 2025 | theglobeandmail.comOcean Power FY25 Loss Narrows Y/Y, Backlog Hits Record HighJuly 29, 2025 | zacks.comOcean Power Technologies, Inc. (AMEX:OPTT) Q4 2025 Earnings Call TranscriptJuly 29, 2025 | msn.comOcean Power Technologies Sees Unusually High Options Volume (NASDAQ:OPTT)July 26, 2025 | marketbeat.comOcean Power Technologies, Inc. Announces Fourth Quarter and Full Year Fiscal 2025 ResultsJuly 25, 2025 | theglobeandmail.comOcean Power Q4 Revenue Up 6 PercentJuly 25, 2025 | fool.comOcean Power Technologies, Inc. (OPTT) Q4 2025 Earnings Conference Call TranscriptJuly 25, 2025 | seekingalpha.comOcean Power Technologies grows revenue and backlog in fiscal 2025July 25, 2025 | proactiveinvestors.comOcean Power Technologies (NASDAQ:OPTT) Stock Passes Above 200 Day Moving Average - Here's WhyJuly 25, 2025 | marketbeat.comOcean Power Technologies, Inc. Announces Fourth Quarter and Full Year Fiscal 2025 ResultsJuly 24, 2025 | globenewswire.comOcean Power Technologies Signs Strategic Reseller Agreement in Latin AmericaJuly 24, 2025 | globenewswire.comOcean Power Technologies to Announce Fiscal 2025 Fourth Quarter and Full-Year Results on July 24, 2025July 15, 2025 | globenewswire.comOcean Power Technologies achieves ISO 9001 certification for quality managementJuly 14, 2025 | proactiveinvestors.comOcean Power Technologies Achieves ISO 9001 CertificationJuly 14, 2025 | globenewswire.comOcean Power Technologies installs PowerBuoy system for Naval Postgraduate SchoolJuly 9, 2025 | proactiveinvestors.comOcean Power Technologies Installs AI Capable Merrows™ PowerBuoy® for Naval Postgraduate SchoolJuly 9, 2025 | globenewswire.comOcean Power Technologies secures new patent for offshore charging system - ICYMIJune 28, 2025 | proactiveinvestors.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeCAFD, ALCC, OPTT, and HLGN Company DescriptionsAltC Acquisition NYSE:ALCC$71.06 -2.60 (-3.53%) As of 08/15/2025AltC 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.(CAFD) NASDAQ:CAFD8point3 Energy Partners LP, together with its subsidiaries, acquires, owns, and operates solar energy generation projects in the United States. It owns interests in 10 utility-scale solar energy projects; and 4 commercial and industrial solar energy projects, as well as a portfolio of residential DG solar assets. As of November 30, 2017, its portfolio consisted of interests in 946 megawatt of solar energy projects. 8point3 General Partner, LLC serves as the general partner of the company. The company was founded in 2015 and is based in San Jose, California.Heliogen NYSE:HLGN$1.70 +0.04 (+2.10%) As of 08/8/2025Heliogen, 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.Ocean Power Technologies NASDAQ:OPTT$0.49 -0.01 (-1.31%) Closing price 08/15/2025 04:00 PM EasternExtended Trading$0.49 +0.00 (+0.69%) As of 08/15/2025 07:58 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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