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Comparative Price Performance Over Time

Compare Price & Volume

Company	Current Price	50-Day Moving Average	52-Week Range	Market Cap	Beta	Avg. Volume	Today's Volume
ALCC AltC Acquisition	$74.31 +4.4%	$65.68	$10.27 ▼ $18.80	$2.27B	-0.06	723,393 shs	24.36 million shs
AM Antero Midstream	$17.74 -0.2%	$17.93	$14.06 ▼ $19.08	$8.49B	0.97	3.10 million shs	1.90 million shs
HLGN Heliogen	$1.70 +2.1%	$1.53	$0.68 ▼ $3.28	$10.42M	2.93	11,559 shs	3,106 shs
OPTT Ocean Power Technologies	$0.54 +5.4%	$0.55	$0.14 ▼ $1.75	$98.25M	2.62	8.05 million shs	10.98 million shs

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Compare Price Performance

Company	1-Day Performance	7-Day Performance	30-Day Performance	90-Day Performance	1-Year Performance
ALCC AltC Acquisition	+1.15%	+3.19%	-5.71%	+32.08%	+909.79%
AM Antero Midstream	+1.05%	+2.07%	+4.22%	-5.62%	+20.35%
HLGN Heliogen	0.00%	0.00%	+4.94%	-27.74%	-35.11%
OPTT Ocean Power Technologies	+1.20%	+5.69%	-19.68%	+0.56%	+157.07%

Compare MarketRank™

Company	Overall Score	Analyst's Opinion	Short Interest Score	Dividend Strength	ESG Score	News and Social Media Sentiment	Company Ownership	Earnings & Valuation
ALCC AltC Acquisition	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
AM Antero Midstream	3.9975 of 5 stars	1.1	4.0	1.7	3.3	3.9	1.7	1.9
HLGN Heliogen	0.0312 of 5 stars	0.0	2.0	0.0	0.0	0.6	0.0	0.0
OPTT Ocean Power Technologies	0.0907 of 5 stars	0.0	2.0	0.0	0.0	1.9	0.0	0.0

Compare Analyst Forecasts

Company	Consensus Rating Score	Consensus Rating	Consensus Price Target	% Upside from Current Price
ALCC AltC Acquisition	0.00	N/A	N/A	N/A
AM Antero Midstream	2.25	Hold	$18.50	4.31% Upside
HLGN Heliogen	0.00	N/A	N/A	N/A
OPTT Ocean Power Technologies	0.00	N/A	N/A	N/A

Current Analyst Ratings Breakdown

Latest ALCC, OPTT, HLGN, and AM Analyst Ratings

Date	Company	Brokerage	Action	Rating	Price Target
8/21/2025	AM Antero Midstream	Zacks Research Subscribe to MarketBeat All Access for the recommendation accuracy rating	Upgrade	Hold ➝ Strong-Buy
8/18/2025	AM Antero Midstream	The Goldman Sachs Group Subscribe to MarketBeat All Access for the recommendation accuracy rating	Boost Price Target	Neutral ➝ Neutral	$15.50 ➝ $17.50
8/6/2025	AM Antero Midstream	Morgan Stanley Subscribe to MarketBeat All Access for the recommendation accuracy rating	Boost Price Target	Underweight ➝ Underweight	$17.00 ➝ $19.00
8/1/2025	AM Antero Midstream	Wells Fargo & Company Subscribe to MarketBeat All Access for the recommendation accuracy rating	Boost Price Target	Equal Weight ➝ Equal Weight	$17.00 ➝ $19.00
6/3/2025	AM Antero Midstream	Morgan Stanley Subscribe to MarketBeat All Access for the recommendation accuracy rating	Reiterated Rating	Underweight ➝ Underweight	$16.00 ➝ $17.00

(Data available from 8/27/2022 forward. View 10+ years of historical ratings with our analyst ratings screener.)

Compare Sales & Book Value

Company	Annual Revenue	Price/Sales	Cashflow	Price/Cash	Book Value	Price/Book
ALCC AltC Acquisition	N/A	N/A	$1.58 per share	47.00	($0.27) per share	N/A
AM Antero Midstream	$1.22B	6.93	$1.29 per share	13.70	$4.36 per share	4.07
HLGN Heliogen	$3.92M	2.66	N/A	N/A	($1.36) per share	-1.25
OPTT Ocean Power Technologies	$5.86M	16.76	N/A	N/A	$0.32 per share	1.70

Compare Profitability & Earnings

Company	Net Income	EPS	Trailing P/E Ratio	Forward P/E Ratio	P/E Growth	Net Margins	Return on Equity (ROE)	Return on Assets (ROA)	Next Earnings Date
ALCC AltC Acquisition	$11.87M	N/A	0.00	∞	N/A	N/A	-85.44%	2.50%	N/A
AM Antero Midstream	$400.89M	$0.95	18.67	17.56	N/A	39.53%	21.67%	7.93%	10/29/2025 (Estimated)
HLGN Heliogen	-$129.60M	$6.39	N/A	∞	N/A	N/A	N/A	-147.90%	11/6/2025 (Estimated)
OPTT Ocean Power Technologies	-$27.48M	-$0.17	N/A	∞	N/A	-304.91%	-97.03%	-72.36%	N/A

Latest ALCC, OPTT, HLGN, and AM Earnings

Date	Quarter	Company	Consensus Estimate	Reported EPS	Beat/Miss	Gap EPS	Revenue Estimate	Actual Revenue	Details
7/30/2025	Q2 2025	AM Antero Midstream	$0.24	$0.26	+$0.02	$0.26	$292.70 million	$305.47 million

Compare Dividends

Company	Annual Payout	Dividend Yield	3-Year Dividend Growth	Payout Ratio	Years of Consecutive Growth
ALCC AltC Acquisition	N/A	N/A	N/A	N/A	N/A
AM Antero Midstream	$0.90	5.07%	N/A	94.74%	N/A
HLGN Heliogen	N/A	N/A	N/A	N/A	N/A
OPTT Ocean Power Technologies	N/A	N/A	N/A	N/A	N/A

Latest ALCC, OPTT, HLGN, and AM Dividends

Announcement	Company	Period	Amount	Yield	Ex-Dividend Date	Record Date	Payable Date
7/9/2025	AM Antero Midstream	quarterly	$0.2250	5.13%	7/23/2025	7/23/2025	8/6/2025

(Data available from 1/1/2013 forward)

Compare Debt

Company	Debt-to-Equity Ratio	Current Ratio	Quick Ratio
ALCC AltC Acquisition	N/A	0.15	0.59
AM Antero Midstream	1.45	1.03	1.03
HLGN Heliogen	N/A	0.46	0.46
OPTT Ocean Power Technologies	N/A	2.79	1.37

Compare Ownership

Institutional Ownership

Company	Institutional Ownership
ALCC AltC Acquisition	85.03%
AM Antero Midstream	53.97%
HLGN Heliogen	27.58%
OPTT Ocean Power Technologies	11.93%

Insider Ownership

Company	Insider Ownership
ALCC AltC Acquisition	21.80%
AM Antero Midstream	0.86%
HLGN Heliogen	3.80%
OPTT Ocean Power Technologies	1.65%

Compare Miscellaneous Stats

Company	Employees	Shares Outstanding	Free Float	Optionable
ALCC AltC Acquisition	2	30.60 million	23.93 million	No Data
AM Antero Midstream	590	478.50 million	474.39 million	Optionable
HLGN Heliogen	5,305	6.13 million	5.82 million	No Data
OPTT Ocean Power Technologies	50	180.65 million	144.58 million	Optionable

ALCC, OPTT, HLGN, and AM Headlines

Recent News About These Companies

Ocean Power expands partnership with Unique Group

August 26 at 5:19 PM | msn.com

Ocean Power Technologies expands UAE partnership with Unique Group through new services agreement

August 26 at 9:32 AM | proactiveinvestors.com

Ocean Power Technologies Expands Strategic Partnership with Unique Group Through Master Services Agreement for UAE Operations

August 26 at 8:31 AM | quiverquant.comQ

Ocean Power Technologies Accelerates UAE Growth Strategy Through Expanded Partnership with Unique Group

August 26 at 8:15 AM | globenewswire.com

Ocean Power unveils major upgrade to Merrows MDAS

August 19, 2025 | msn.com

Ocean Power Technologies upgrades Merrows Maritime Domain Awareness Solution

August 19, 2025 | proactiveinvestors.com

Ocean Power Technologies Unveils Enhanced Merrows™ Maritime Domain Awareness Solution

August 19, 2025 | globenewswire.com

Ocean Power expands U.S. presents with new Washington, D.C. office

August 19, 2025 | msn.com

Ocean Power opens new office in Washington, D.C.

August 19, 2025 | msn.com

Ocean Power Technologies opens office at AUVSI headquarters in Washington, DC

August 18, 2025 | proactiveinvestors.com

Ocean Power Technologies Expands U.S. Presence with New Washington, D.C. Office at AUVSI Headquarters

August 18, 2025 | globenewswire.com

Ocean Power Technologies CEO urges New Jersey to back marine energy sector

August 15, 2025 | proactiveinvestors.com

Ocean Power Technologies CEO urges New Jersey to back marine energy sector

August 15, 2025 | proactiveinvestors.com

Ocean Power Technologies Highlights Marine Energy Leadership in Testimony Before New Jersey Legislature

August 14, 2025 | globenewswire.com

Ocean Power Technologies Signs New Sales Agreement

August 12, 2025 | theglobeandmail.com

Ocean Power Technologies Partners with Greensea IQ for Autonomous Hull Maintenance

August 10, 2025 | theglobeandmail.com

Ocean Power FY25 Loss Narrows Y/Y, Backlog Hits Record High

July 29, 2025 | zacks.com

Ocean Power Technologies, Inc. (AMEX:OPTT) Q4 2025 Earnings Call Transcript

July 29, 2025 | msn.com

Ocean Power Technologies, Inc. Announces Fourth Quarter and Full Year Fiscal 2025 Results

July 25, 2025 | theglobeandmail.com

Ocean Power Q4 Revenue Up 6 Percent

July 25, 2025 | fool.com

New MarketBeat Followers Over Time

Media Sentiment Over Time

ALCC, OPTT, HLGN, and AM Company Descriptions

AltC Acquisition NYSE:ALCC

$74.31 +3.12 (+4.38%)

As of 08/26/2025

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.

Antero Midstream NYSE:AM

$17.74 -0.04 (-0.20%)

Closing price 03:59 PM Eastern

Extended Trading

$17.72 -0.02 (-0.08%)

As of 05:22 PM Eastern

Antero Midstream Corporation owns, operates, and develops midstream energy assets in the Appalachian Basin. It operates in two segments, Gathering and Processing, and Water Handling. The Gathering and Processing segment includes a network of gathering pipelines and compressor stations that collects and processes production from Antero Resources' wells in West Virginia and Ohio. The Water Handling segment delivers fresh water from sources, including the Ohio River, local reservoirs, and various regional waterways; uses water handling systems to transport flowback and produced water; and offers pumping stations, water storage, and blending facilities. The company was founded in 2002 and is headquartered in Denver, Colorado.

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.

Ocean Power Technologies NASDAQ:OPTT

$0.54 +0.03 (+5.37%)

Closing price 04:00 PM Eastern

Extended Trading

$0.55 +0.01 (+0.94%)

As of 05:55 PM Eastern

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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Comparative Price Performance Over Time