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Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities.

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
BLDP Ballard Power Systems	$1.79 -2.2%	$1.68	$1.00 ▼ $2.28	$548.76M	1.71	7.18 million shs	6.15 million shs
BYRN Byrna Technologies	$21.32 -4.0%	$27.42	$7.79 ▼ $34.78	$504.25M	2.07	884,238 shs	534,453 shs
SES SES AI	$1.22 -6.5%	$0.99	$0.20 ▼ $2.53	$476.91M	0.42	8.76 million shs	6.99 million shs
STEM Stem	$12.21 -6.2%	$10.25	$5.81 ▼ $33.60	$108.30M	1.31	913,746 shs	313,163 shs

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Compare Price Performance

Company	1-Day Performance	7-Day Performance	30-Day Performance	90-Day Performance	1-Year Performance
BLDP Ballard Power Systems	-2.19%	-15.96%	+7.19%	+43.20%	-21.49%
BYRN Byrna Technologies	-4.01%	-9.85%	-32.60%	-10.34%	+127.29%
SES SES AI	-6.90%	+3.40%	+36.38%	+49.08%	-0.82%
STEM Stem	-6.26%	-18.65%	+62.58%	+18.54%	-50.16%

Compare MarketRank™

Company	Overall Score	Analyst's Opinion	Short Interest Score	News and Social Media Sentiment	Company Ownership	Earnings & Valuation
BLDP Ballard Power Systems	1.0769 of 5 stars	1.9	2.0	2.3	0.0	1.3
BYRN Byrna Technologies	2.8149 of 5 stars	3.6	1.0	3.8	0.0	1.9
SES SES AI	1.7494 of 5 stars	2.0	5.0	2.4	0.8	0.6
STEM Stem	2.4635 of 5 stars	3.1	4.0	1.1	2.5	0.6

Compare Analyst Forecasts

Company	Consensus Rating Score	Consensus Rating	Consensus Price Target	% Upside from Current Price
BLDP Ballard Power Systems	1.72	Reduce	$2.14	19.51% Upside
BYRN Byrna Technologies	3.20	Buy	$38.75	81.75% Upside
SES SES AI	2.00	Hold	$1.50	23.46% Upside
STEM Stem	2.11	Hold	$22.22	82.00% Upside

Current Analyst Ratings Breakdown

Latest STEM, BLDP, BYRN, and SES Analyst Ratings

Date	Company	Brokerage	Action	Rating	Price Target
7/21/2025	BLDP Ballard Power Systems	Susquehanna Subscribe to MarketBeat All Access for the recommendation accuracy rating	Boost Price Target	Neutral ➝ Neutral	$1.30 ➝ $2.00
7/16/2025	BYRN Byrna Technologies	Craig Hallum Subscribe to MarketBeat All Access for the recommendation accuracy rating	Initiated Coverage	Buy	$39.00
7/11/2025	BYRN Byrna Technologies	B. Riley Subscribe to MarketBeat All Access for the recommendation accuracy rating	Reiterated Rating	Buy ➝ Buy	$39.00 ➝ $46.00
7/9/2025	BYRN Byrna Technologies	Roth Capital Subscribe to MarketBeat All Access for the recommendation accuracy rating	Boost Price Target	Buy ➝ Buy	$33.00 ➝ $37.00
6/24/2025	SES SES AI	Cantor Fitzgerald Subscribe to MarketBeat All Access for the recommendation accuracy rating	Reiterated Rating	Overweight ➝ Overweight	$2.00
6/8/2025	BLDP Ballard Power Systems	National Bank Financial Subscribe to MarketBeat All Access for the recommendation accuracy rating	Upgrade	Hold
6/6/2025	BYRN Byrna Technologies	Wolfe Research Subscribe to MarketBeat All Access for the recommendation accuracy rating	Upgrade	Strong-Buy
6/6/2025	BYRN Byrna Technologies	B. Riley Subscribe to MarketBeat All Access for the recommendation accuracy rating	Reiterated Rating	Buy ➝ Buy	$38.00 ➝ $39.00
5/20/2025	SES SES AI	Cantor Fitzgerald Subscribe to MarketBeat All Access for the recommendation accuracy rating	Initiated Coverage	Overweight	$2.00
5/12/2025	BLDP Ballard Power Systems	UBS Group Subscribe to MarketBeat All Access for the recommendation accuracy rating	Lower Price Target	Neutral ➝ Neutral	$2.00 ➝ $1.40

(Data available from 8/2/2022 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
BLDP Ballard Power Systems	$70.67M	7.60	N/A	N/A	$2.25 per share	0.80
BYRN Byrna Technologies	$85.76M	5.64	$0.36 per share	58.42	$2.65 per share	8.05
SES SES AI	$2.04M	218.49	N/A	N/A	$0.77 per share	1.58
STEM Stem	$144.58M	0.70	$48.84 per share	0.25	($48.87) per share	-0.25

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
BLDP Ballard Power Systems	-$324.24M	-$1.02	N/A	N/A	N/A	-430.17%	-20.41%	-17.90%	8/11/2025 (Estimated)
BYRN Byrna Technologies	$12.79M	$0.62	34.39	56.11	N/A	14.28%	16.96%	13.10%	10/8/2025 (Estimated)
SES SES AI	-$100.18M	-$0.30	N/A	N/A	N/A	N/A	-32.65%	-28.67%	8/4/2025 (Estimated)
STEM Stem	-$854.01M	-$99.00	N/A	N/A	N/A	-532.03%	N/A	-22.00%	8/7/2025 (Estimated)

Latest STEM, BLDP, BYRN, and SES Earnings

Date	Quarter	Company	Consensus Estimate	Reported EPS	Beat/Miss	Gap EPS	Revenue Estimate	Actual Revenue
8/11/2025	Q2 2025	BLDP Ballard Power Systems	-$0.10	N/A	N/A	N/A	$17.94 million	N/A
8/7/2025	Q2 2025	STEM Stem	-$3.00	N/A	N/A	N/A	$32.18 million	N/A
8/4/2025	Q2 2025	SES SES AI	-$0.06	N/A	N/A	N/A	$4.33 million	N/A
7/10/2025	Q2 2025	BYRN Byrna Technologies	$0.03	$0.10	+$0.07	$0.10	$28.47 million	$28,505.00 billion
5/6/2025	Q1 2025	BLDP Ballard Power Systems	-$0.12	-$0.07	+$0.05	-$0.07	$16.82 million	$14.76 million

Compare Dividends

Company	Annual Payout	Dividend Yield	3-Year Dividend Growth	Payout Ratio	Years of Consecutive Growth
BLDP Ballard Power Systems	N/A	N/A	N/A	N/A	N/A
BYRN Byrna Technologies	N/A	N/A	N/A	N/A	N/A
SES SES AI	N/A	N/A	N/A	N/A	N/A
STEM Stem	N/A	N/A	N/A	N/A	N/A

Compare Debt

Company	Debt-to-Equity Ratio	Current Ratio	Quick Ratio
BLDP Ballard Power Systems	0.03	9.00	8.13
BYRN Byrna Technologies	N/A	3.63	1.53
SES SES AI	N/A	15.61	15.60
STEM Stem	N/A	0.92	0.85

Compare Ownership

Institutional Ownership

Company	Institutional Ownership
BLDP Ballard Power Systems	28.02%
BYRN Byrna Technologies	25.46%
SES SES AI	29.78%
STEM Stem	61.63%

Insider Ownership

Company	Insider Ownership
BLDP Ballard Power Systems	0.16%
BYRN Byrna Technologies	9.75%
SES SES AI	15.07%
STEM Stem	5.10%

Compare Miscellaneous Stats

Company	Employees	Shares Outstanding	Free Float	Optionable
BLDP Ballard Power Systems	1,370	299.87 million	299.39 million	Optionable
BYRN Byrna Technologies	150	22.70 million	20.49 million	Optionable
SES SES AI	130	366.85 million	311.57 million	Optionable
STEM Stem	660	8.32 million	7.89 million	Optionable

STEM, BLDP, BYRN, and SES Headlines

Recent News About These Companies

Busting myths around stem cell therapy

July 31 at 7:16 PM | dvm360.comD

Stem (STEM) Surges 45.6%: Is This an Indication of Further Gains?

July 21, 2025 | zacks.com

Stem Announces Second Quarter 2025 Results Conference Call

July 9, 2025 | businesswire.com

Stem Appoints New Chief Financial Officer

July 2, 2025 | businesswire.com

Stem, Inc. Significantly Strengthens Balance Sheet Through Convertible Notes Exchange and New Notes Issuance

June 30, 2025 | businesswire.com

Stem (STEM) Soars 8.8%: Is Further Upside Left in the Stock?

June 27, 2025 | zacks.com

Watch These Renewable Energy & Battery Energy Stocks for Valuable Gains

June 18, 2025 | zacks.com

Stem, Inc. Announces 1-for-20 Reverse Stock Split

June 11, 2025 | businesswire.com

Stem Announces Support of One of Nation's Largest Solar-Plus-Storage Projects

June 3, 2025 | businesswire.com

Voltron Therapeutics, Inc., a Lucius Partners Portfolio Company, Announces Definitive Proof of Concept Data for its Second Oncology Candidate (VTX-0P4) in a Prostate Stem Cell Antigen (PSCA) Related Tumor Study in Combination with a Checkpoint Inhibitor (CPI) / anti-mPD-1

May 29, 2025 | globenewswire.com

Bears are Losing Control Over Stem (STEM), Here's Why It's a 'Buy' Now

May 23, 2025 | zacks.com

Stem Jumps 32% in a Month: Should You Add the Stock to Your Portfolio?

May 21, 2025 | zacks.com

ASME and ComEd Bring STEM to Life for Fifth and Sixth Graders

May 15, 2025 | businesswire.com

'STEM at the Stadium' brings NH students to Fisher Cats game

May 7, 2025 | msn.com

'STEM at the Stadium' brings NH students to Fisher Cats game

May 7, 2025 | msn.com

Here Is Why Bargain Hunters Would Love Fast-paced Mover Stem (STEM)

May 7, 2025 | zacks.com

Renewable Energy & Battery Storage Stocks to Add to Your Portfolio Now

May 6, 2025 | zacks.com

Stem, Inc. (STEM) Q1 2025 Earnings Call Transcript

April 29, 2025 | seekingalpha.com

Stem, Inc. (STEM) Reports Q1 Loss, Tops Revenue Estimates

April 29, 2025 | zacks.com

Stem to Report Q1 Earnings: What's in the Cards for the Stock?

April 25, 2025 | zacks.com

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STEM, BLDP, BYRN, and SES Company Descriptions

Ballard Power Systems NASDAQ:BLDP

$1.79 -0.04 (-2.19%)

Closing price 08/1/2025 04:00 PM Eastern

Extended Trading

$1.81 +0.02 (+1.12%)

As of 08/1/2025 07:49 PM Eastern

Ballard Power Systems Inc. engages in the design, development, manufacture, sale, and service of proton exchange membrane (PEM) fuel cell products. The company offers its products for power product comprising for bus, truck, rail, marine, stationary, and emerging market, such as material handling, off-road, and other applications. It also engages in the delivery of services, including technology solutions, after sales services, and training; and provision of engineering services, product and systems integration services, and related technology transfer for a variety of PEM fuel cell applications. It operates in the United States, Germany, Canada, China, Poland, the United Kingdom, the Netherlands, France, Denmark, Belgium, India, Taiwan, Spain, Norway, Australia, Japan, and internationally. The company has a strategic alliance with Linamar Corporation for the co-development and sale of fuel cell powertrains and components for class 1 and 2 vehicles in North America and Europe. Ballard Power Systems Inc. was founded in 1979 and is headquartered in Burnaby, Canada.

Byrna Technologies NASDAQ:BYRN

$21.32 -0.89 (-4.01%)

Closing price 08/1/2025 04:00 PM Eastern

Extended Trading

$21.41 +0.09 (+0.42%)

As of 08/1/2025 07:24 PM Eastern

Byrna Technologies Inc., a non-lethal defense technology company, provides non-lethal alternative solutions for law enforcement and private security. The company offers handheld personal security devices and shoulder-fired launchers without the need for background check or firearm license; and projectiles including chemical irritant, kinetic, and inert rounds. It offers self-defense aerosol products under the Byran Bad Guy Repellent brand; and accessories and related safety products, which includes carbon dioxide canisters, sighting systems, and holster under the Byran Banshee and Byran Shield brand, as well as Byrna-branded apparel. In addition, the company provides the products to the consumer market through Byrna e-commerce store and Amazon storefront, and network of local, regional and national outdoor and sporting goods stores, either directly or through distributors; and professional security market through Train the Trainer program and de-escalation methods. It operates in the United States, South Africa, Europe, South America, Asia, and Canada. The company was formerly known as Security Devices International, Inc. and changed its name to Byrna Technologies Inc. in March 2020. Byrna Technologies Inc. was incorporated in 2005 and is headquartered in Andover, Massachusetts.

SES AI NYSE:SES

$1.22 -0.09 (-6.54%)

Closing price 08/1/2025 03:59 PM Eastern

Extended Trading

$1.23 +0.01 (+0.82%)

As of 08/1/2025 07:58 PM Eastern

SES AI Corporation engages in the development and production of high-performance Lithium-metal rechargeable batteries for electric vehicles, electric vehicle take-off and landing, and other applications. The company was founded in 2012 and is headquartered in Woburn, Massachusetts.

Stem NYSE:STEM

$12.21 -0.81 (-6.22%)

Closing price 08/1/2025 03:59 PM Eastern

Extended Trading

$12.56 +0.34 (+2.83%)

As of 08/1/2025 07:53 PM Eastern

Stem, Inc. operates as a digitally connected, intelligent, and renewable energy storage network provider worldwide. The company offers energy storage hardware sourced from original equipment manufacturers (OEMs); edge hardware to aid in the collection of site data and real-time operation and control of the site and other optional equipment; and Athena, a software platform, which offers battery hardware and software-enabled services to operate the energy storage systems. It serves commercial and industrial enterprises, independent power producers, renewable project developers, and utilities and grid operators. The company was incorporated in 2009 and is headquartered in San Francisco, California.

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Comparative Price Performance Over Time