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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:NEP 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$76.59+1.3%$59.24$10.27▼$18.80$2.34B-0.06723,393 shs23.97 million shsHLGNHeliogen$1.45-11.6%$1.60$0.68▼$3.28$10.05M2.9311,488 shs3,795 shsNEPNextera Energy Partners$0.00$9.98▼$29.03$983.47M1.032.16 million shsN/AOPTTOcean Power Technologies$0.52-2.4%$0.56$0.14▼$1.75$92.75M2.628.60 million shs3.81 million shsBeginner's Guide To Retirement StocksEnter your email address and we'll send you MarketBeat's list of seven best retirement stocks and why they should be in your portfolio. Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceALCCAltC Acquisition+1.27%+2.68%+48.03%+191.88%+764.45%HLGNHeliogen-11.59%-10.49%-4.67%-28.92%-54.65%NEPNextera Energy Partners0.00%0.00%0.00%0.00%+1,051,499,900.00%OPTTOcean Power Technologies-2.36%-18.72%+8.16%+20.54%+139.96%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationALCCAltC AcquisitionN/AN/AN/AN/AN/AN/AN/AN/AHLGNHeliogen0.0578 of 5 stars0.03.00.00.00.00.00.0NEPNextera Energy Partners1.4399 of 5 stars2.50.03.30.00.61.70.0OPTTOcean Power Technologies0.2492 of 5 stars0.02.00.00.03.20.00.0Compare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceALCCAltC Acquisition 0.00N/AN/AN/AHLGNHeliogen 0.00N/AN/AN/ANEPNextera Energy Partners 1.00Sell$10.00∞ UpsideOPTTOcean Power Technologies 0.00N/AN/AN/ACurrent Analyst Ratings BreakdownCompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookALCCAltC AcquisitionN/AN/A$1.63 per share47.00($0.27) per shareN/AHLGNHeliogen$3.92M2.27N/AN/A($1.36) per share-1.07NEPNextera Energy Partners$1.23B0.00N/A2.56$150.50 per share0.00OPTTOcean Power Technologies$5.86M15.82N/AN/A$0.32 per share1.63Compare 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%8/4/2025 (Estimated)NEPNextera Energy Partners-$10M-$0.10N/A0.00N/A-0.73%1.34%0.85%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/AHLGNHeliogenN/AN/AN/AN/AN/ANEPNextera Energy Partners$3.6734.82%N/AN/A 10 YearsOPTTOcean Power TechnologiesN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioALCCAltC AcquisitionN/A0.150.59HLGNHeliogenN/A0.460.46NEPNextera Energy Partners0.372.021.78OPTTOcean Power TechnologiesN/A2.791.37Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipALCCAltC Acquisition85.03%HLGNHeliogen27.58%NEPNextera Energy Partners66.01%OPTTOcean Power Technologies11.93%Insider OwnershipCompanyInsider OwnershipALCCAltC Acquisition21.80%HLGNHeliogen3.80%NEPNextera Energy Partners0.14%OPTTOcean Power Technologies1.00%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableALCCAltC Acquisition230.60 million23.93 millionNo DataHLGNHeliogen5,3056.13 million5.82 millionNo DataNEPNextera Energy PartnersN/A93.53 million93.40 millionN/AOPTTOcean Power Technologies50177.54 million144.58 millionOptionableALCC, NEP, OPTT, and HLGN HeadlinesRecent News About These CompaniesOcean 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 Large Options Volume (NASDAQ:OPTT)July 27, 2025 | americanbankingnews.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.comOcean Power Technologies secures US patent allowance for floating marine charging systemJune 26, 2025 | proactiveinvestors.comOPTT Ocean Power Technologies, Inc. - Seeking AlphaJune 26, 2025 | seekingalpha.comOcean Power Technologies Awarded Patent for System and Method for Vehicle ChargingJune 26, 2025 | globenewswire.comOcean Power Technologies Inc. Financials | OPTT | Barron'sJune 24, 2025 | barrons.comNew MarketBeat Followers Over TimeMedia Sentiment Over TimeALCC, NEP, OPTT, and HLGN Company DescriptionsAltC Acquisition NYSE:ALCC$76.59 +0.96 (+1.27%) As of 07/31/2025AltC 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:HLGN$1.45 -0.19 (-11.59%) As of 08/1/2025 01:07 PM EasternHeliogen, 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.Nextera Energy Partners NYSE:NEPNextEra Energy Partners LP engages in the acquisition, management, and ownership of contracted clean energy projects with long-term cash flows. It owns interests in wind and solar projects in North America and natural gas infrastructure assets in Texas. The company was founded on March 6, 2014 and is headquartered in Juno Beach, FL.Ocean Power Technologies NASDAQ:OPTT$0.52 -0.01 (-2.36%) Closing price 08/1/2025 04:00 PM EasternExtended Trading$0.52 0.00 (-0.27%) As of 08/1/2025 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.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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