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CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
$65.41
-5.2%
$65.15
$10.27
$18.80
$2.00B-0.06723,393 shs11.12 million shs
Heliogen, Inc. stock logo
HLGN
Heliogen
$1.70
+2.1%
$1.54
$0.68
$3.28
$10.42M2.9311,559 shs3,106 shs
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
$19.43
$13.05
$28.77
$8.44B0.5623,754 shs3,518 shs
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
$0.48
-0.8%
$0.55
$0.14
$1.75
$87.56M2.628.16 million shs2.26 million shs
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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
-2.91%-3.99%+0.01%+83.63%+278.44%
Heliogen, Inc. stock logo
HLGN
Heliogen
0.00%0.00%+33.86%-34.62%-29.46%
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
0.00%0.00%0.00%0.00%0.00%
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
-3.63%-6.02%-32.17%-2.36%+145.43%
CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
N/AN/AN/AN/AN/AN/AN/AN/A
Heliogen, Inc. stock logo
HLGN
Heliogen
0.0378 of 5 stars
0.02.00.00.00.60.00.0
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
N/AN/AN/AN/AN/AN/AN/AN/A
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
0.1717 of 5 stars
0.02.00.00.02.50.00.0
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
0.00
N/AN/AN/A
Heliogen, Inc. stock logo
HLGN
Heliogen
0.00
N/AN/AN/A
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
0.00
N/AN/AN/A
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
0.00
N/AN/AN/A
CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
N/AN/A$1.39 per share47.00($0.27) per shareN/A
Heliogen, Inc. stock logo
HLGN
Heliogen
$3.92M2.66N/AN/A($1.36) per share-1.25
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
$32.09B0.00N/A4.73$52.75 per share0.00
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
$5.86M14.94N/AN/A$0.32 per share1.51
CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
$11.87MN/A0.00N/AN/A-85.44%2.50%N/A
Heliogen, Inc. stock logo
HLGN
Heliogen
-$129.60M$6.39N/AN/AN/AN/A-147.90%11/6/2025 (Estimated)
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
-$1.65B-$6.60N/A0.000.70-6.60%-10.78%-3.10%N/A
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
-$27.48M-$0.17N/AN/A-304.91%-97.03%-72.36%N/A
CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
N/AN/AN/AN/AN/A
Heliogen, Inc. stock logo
HLGN
Heliogen
N/AN/AN/AN/AN/A
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
$0.984.56%N/AN/A N/A
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
N/AN/AN/AN/AN/A
CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
N/A
0.15
0.59
Heliogen, Inc. stock logo
HLGN
Heliogen
N/A
0.46
0.46
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
1.47
0.53
0.47
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
N/A
2.79
1.37

Institutional Ownership

CompanyInstitutional Ownership
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
85.03%
Heliogen, Inc. stock logo
HLGN
Heliogen
27.58%
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
0.46%
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
11.93%

Insider Ownership

CompanyInsider Ownership
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
21.80%
Heliogen, Inc. stock logo
HLGN
Heliogen
3.80%
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
N/A
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
1.00%
CompanyEmployeesShares OutstandingFree FloatOptionable
AltC Acquisition Corp. stock logo
ALCC
AltC Acquisition
230.60 million23.93 millionNo Data
Heliogen, Inc. stock logo
HLGN
Heliogen
5,3056.13 million5.82 millionNo Data
Huaneng Power International, Inc. stock logo
HNP
Huaneng Power International
57,513392.45 million392.45 millionOptionable
Ocean Power Technologies, Inc. stock logo
OPTT
Ocean Power Technologies
50180.65 million144.58 millionOptionable

Recent News About These Companies

Ocean Power unveils major upgrade to Merrows MDAS
Ocean Power opens new office in Washington, D.C.
Ocean Power Technologies Signs New Sales Agreement
Ocean Power Q4 Revenue Up 6 Percent

New MarketBeat Followers Over Time

Media Sentiment Over Time

AltC Acquisition stock logo

AltC Acquisition NYSE:ALCC

$65.41 -3.58 (-5.19%)
As of 08/19/2025

AltC 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 stock logo

Heliogen NYSE:HLGN

$1.70 +0.04 (+2.10%)
As of 08/8/2025

Heliogen, 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.

Huaneng Power International stock logo

Huaneng Power International NYSE:HNP

Huaneng Power International, Inc., together with its subsidiaries, engages in the generation and sale of electric power to the regional or provincial grid companies in the People's Republic of China and internationally. It is involved in the development, construction, operation, and management of power plants and related projects. The company also generates power from gas turbine, hydro, wind, photovoltaic, coal-fired, and biomass resources. In addition, it is involved in the sale of coal ash and lime; cargo loading and storage; port, warehousing, and conveying activities; photovoltaic power generation projects development and construction; and provision of thermal energy and cold energy services, as well as thermal heating services. Further, the company engages in the repair and maintenance of power equipment; supply of steam and hot water; plumbing pipe installation and repair; and energy engineering construction activities. Additionally, it is involved in the provision of transportation services; construction and operation of electricity distribution networks and heating pipe networks; energy supply, energy transmission, and substation project contracting activities; cargo handling and transportation; and port management, investment, and development activities. The company engages in the management of industrial water and waste, as well as provides environment engineering, and information technology and management consulting services. It also sells raw and processed coal; and offers central heat and desalinated water services. As of December 31, 2021, the company had a controlled generating capacity of 118,695 megawatts and an equity-based installed capacity of 103,875 megawatts. Huaneng Power International, Inc. was incorporated in 1994 and is based in Beijing, the People's Republic of China.

Ocean Power Technologies stock logo

Ocean Power Technologies NASDAQ:OPTT

$0.48 0.00 (-0.76%)
Closing price 04:00 PM Eastern
Extended Trading
$0.49 +0.00 (+0.27%)
As of 07:44 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.