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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
ASYS Amtech Systems	$4.73 +4.5%	$4.15	$3.20 ▼ $6.81	$67.62M	1.58	56,329 shs	193 shs
LIQT LiqTech International	$1.92 +6.1%	$1.61	$1.34 ▼ $3.20	$18.45M	0.91	12,729 shs	11,100 shs
SOTK Sono-Tek	$3.61 -2.2%	$3.78	$3.50 ▼ $6.05	$56.79M	-0.06	11,064 shs	9,295 shs
WPRT Westport Fuel Systems	$3.88 -1.4%	$3.02	$2.50 ▼ $6.50	$67.15M	2.91	42,397 shs	2,609 shs

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Compare Price Performance

Company	1-Day Performance	7-Day Performance	30-Day Performance	90-Day Performance	1-Year Performance
ASYS Amtech Systems	-1.74%	-6.22%	+8.39%	+26.26%	-28.48%
LIQT LiqTech International	-4.23%	-0.70%	+20.31%	+20.35%	-15.97%
SOTK Sono-Tek	-1.79%	-5.32%	-4.30%	-3.52%	-14.80%
WPRT Westport Fuel Systems	+0.51%	+19.88%	+36.11%	+37.54%	-39.13%

Compare MarketRank™

Company	Overall Score	Analyst's Opinion	Short Interest Score	News and Social Media Sentiment	Company Ownership	Earnings & Valuation
ASYS Amtech Systems	3.3116 of 5 stars	0.0	4.0	3.3	2.5	2.5
LIQT LiqTech International	2.8438 of 5 stars	3.5	4.0	2.7	0.8	0.6
SOTK Sono-Tek	3.075 of 5 stars	3.0	5.0	2.8	0.8	1.3
WPRT Westport Fuel Systems	2.4341 of 5 stars	3.3	3.0	2.7	0.0	1.3

Compare Analyst Forecasts

Company	Consensus Rating Score	Consensus Rating	Consensus Price Target	% Upside from Current Price
ASYS Amtech Systems	0.00	N/A	N/A	N/A
LIQT LiqTech International	3.00	Buy	$4.80	150.00% Upside
SOTK Sono-Tek	2.00	Hold	$7.50	107.76% Upside
WPRT Westport Fuel Systems	2.50	Moderate Buy	$7.27	87.53% Upside

Current Analyst Ratings Breakdown

Latest LIQT, ASYS, WPRT, and SOTK Analyst Ratings

Date	Company	Brokerage	Action	Rating	Price Target
6/16/2025	LIQT LiqTech International	Ascendiant Capital Markets Subscribe to MarketBeat All Access for the recommendation accuracy rating	Boost Price Target	Buy ➝ Buy	$3.40 ➝ $3.60
5/29/2025	SOTK Sono-Tek	Northland Capmk Subscribe to MarketBeat All Access for the recommendation accuracy rating	Downgrade	Strong-Buy ➝ Hold
5/29/2025	SOTK Sono-Tek	Northland Securities Subscribe to MarketBeat All Access for the recommendation accuracy rating	Reiterated Rating	Outperform ➝ Market Perform

(Data available from 7/17/2022 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
ASYS Amtech Systems	$101.21M	0.67	$0.11 per share	42.42	$5.79 per share	0.82
LIQT LiqTech International	$14.60M	1.26	N/A	N/A	$1.76 per share	1.09
SOTK Sono-Tek	$20.50M	2.77	$0.12 per share	29.41	$1.16 per share	3.11
WPRT Westport Fuel Systems	$302.30M	0.22	N/A	N/A	$7.93 per share	0.49

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
ASYS Amtech Systems	-$8.49M	-$2.22	N/A	10.99	N/A	-34.79%	-2.51%	-1.67%	8/6/2025 (Estimated)
LIQT LiqTech International	-$10.35M	-$1.49	N/A	N/A	N/A	-68.79%	-74.41%	-33.72%	8/13/2025 (Estimated)
SOTK Sono-Tek	$1.27M	$0.09	40.12	45.13	N/A	6.93%	8.10%	6.07%	N/A
WPRT Westport Fuel Systems	-$21.84M	-$0.62	N/A	N/A	N/A	-3.52%	-16.59%	-7.75%	8/11/2025 (Estimated)

Latest LIQT, ASYS, WPRT, and SOTK Earnings

Date	Quarter	Company	Consensus Estimate	Reported EPS	Beat/Miss	Gap EPS	Revenue Estimate	Actual Revenue
8/13/2025	Q2 2025	LIQT LiqTech International	-$0.21	N/A	N/A	N/A	$5.00 million	N/A
8/11/2025	Q2 2025	WPRT Westport Fuel Systems	-$0.29	N/A	N/A	N/A	$75.49 million	N/A
8/6/2025	Q3 2025	ASYS Amtech Systems	-$0.08	N/A	N/A	N/A	$17.00 million	N/A
7/10/2025	Q1 2026	SOTK Sono-Tek	$0.02	$0.03	+$0.01	$0.03	$5.24 million	$5,121.00 billion
5/28/2025	Q4 2025	SOTK Sono-Tek	$0.01	$0.08	+$0.07	$0.02	$5.12 million	$5.12 million
5/14/2025	Q1 2025	LIQT LiqTech International	-$0.18	-$0.25	-$0.07	-$0.25	$4.50 million	$4.62 million
5/13/2025	Q1 2025	WPRT Westport Fuel Systems	-$0.47	-$0.14	+$0.33	-$0.14	$70.96 million	$70.96 million

Compare Dividends

Company	Annual Payout	Dividend Yield	3-Year Dividend Growth	Payout Ratio	Years of Consecutive Growth
ASYS Amtech Systems	N/A	N/A	N/A	N/A	N/A
LIQT LiqTech International	N/A	N/A	N/A	N/A	N/A
SOTK Sono-Tek	N/A	N/A	N/A	N/A	N/A
WPRT Westport Fuel Systems	N/A	N/A	N/A	N/A	N/A

Compare Debt

Company	Debt-to-Equity Ratio	Current Ratio	Quick Ratio
ASYS Amtech Systems	N/A	3.24	2.00
LIQT LiqTech International	0.53	3.80	2.76
SOTK Sono-Tek	N/A	3.77	2.83
WPRT Westport Fuel Systems	0.13	1.49	0.94

Compare Ownership

Institutional Ownership

Company	Institutional Ownership
ASYS Amtech Systems	50.21%
LIQT LiqTech International	35.06%
SOTK Sono-Tek	47.89%
WPRT Westport Fuel Systems	21.30%

Insider Ownership

Company	Insider Ownership
ASYS Amtech Systems	8.00%
LIQT LiqTech International	12.80%
SOTK Sono-Tek	5.88%
WPRT Westport Fuel Systems	0.82%

Compare Miscellaneous Stats

Company	Employees	Shares Outstanding	Free Float	Optionable
ASYS Amtech Systems	330	14.31 million	13.17 million	Optionable
LIQT LiqTech International	120	9.61 million	8.38 million	Not Optionable
SOTK Sono-Tek	80	15.73 million	14.80 million	Not Optionable
WPRT Westport Fuel Systems	1,509	17.33 million	17.19 million	Optionable

LIQT, ASYS, WPRT, and SOTK Headlines

Recent News About These Companies

Westport (WPRT) Shows Fast-paced Momentum But Is Still a Bargain Stock

June 30, 2025 | zacks.com

CIRI Names Four Distinguished Investor Relations Professionals as Fellows

June 27, 2025 | financialpost.comF

Westport to Issue Q2 2025 Financial Results on August 11, 2025 and Provides an Update on the Divestment of the Light-Duty Segment

June 26, 2025 | financialpost.comF

Westport to Issue Q2 2025 Financial Results on August 11, 2025 and Provides an Update on the Divestment of the Light-Duty Segment

June 26, 2025 | globenewswire.com

249,392 Shares in Westport Fuel Systems Inc. (NASDAQ:WPRT) Purchased by Wealthquest Corp

June 25, 2025 | marketbeat.com

Why Is Westport (WPRT) Up 3.2% Since Last Earnings Report?

June 12, 2025 | zacks.com

Westport Fuel Systems’ SWOT analysis: natural gas engine maker’s stock faces challenges

May 21, 2025 | investing.com

Westport Fuel Systems Inc. (NASDAQ:WPRT) Q1 2025 Earnings Call Transcript

May 16, 2025 | insidermonkey.com

Westport Fuel Systems Inc.: Westport Publishes Annual General and Special Meeting Results

May 16, 2025 | finanznachrichten.de

Westport Publishes Annual General and Special Meeting Results

May 15, 2025 | globenewswire.com

Westport Fuel Systems Inc. (WPRT) Q1 2025 Earnings Call Transcript

May 14, 2025 | seekingalpha.com

Westport's Q1 Loss Narrower Than Expected, Revenues Fall Y/Y

May 14, 2025 | zacks.com

Westport Innovations (WPRT) Reports Q1 Loss, Misses Revenue Estimates

May 13, 2025 | zacks.com

Westport Fuel Systems Reports First Quarter 2025 Financial Results

May 13, 2025 | globenewswire.com

Westport Announces Lock-Up Agreements in Support of the Light-Duty Divestment Transaction

April 30, 2025 | globenewswire.com

Westport Announces Annual General and Special Meeting and Timing of Q1 2025 Financial Results

April 17, 2025 | globenewswire.com

Westport price target lowered to $7 from $22 at H.C. Wainwright

April 10, 2025 | markets.businessinsider.com

Westport Fuel Systems Sells Italian Subsidiary to Green Day Holding

April 10, 2025 | tipranks.com

Here's Why You Should Retain Westport Stock in Your Portfolio Now

April 8, 2025 | zacks.com

Is Westport Fuel Systems Inc. (WPRT) the Best Hydrogen Stock to Buy According to Billionaires?

April 8, 2025 | insidermonkey.com

Is Westport Fuel Systems Inc. (WPRT) the Best Hydrogen Stock to Buy According to Billionaires?

April 8, 2025 | msn.com

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LIQT, ASYS, WPRT, and SOTK Company Descriptions

Amtech Systems NASDAQ:ASYS

$4.72 +0.21 (+4.54%)

As of 09:55 AM Eastern

Amtech Systems, Inc. manufactures and sells capital equipment and related consumables for use in fabricating silicon carbide (SiC), silicon power devices, analog and discrete devices, electronic assemblies, and light-emitting diodes (LEDs) worldwide. The company operates through Semiconductor and Material and Substrate segments. The Semiconductor segment designs, manufactures, sells, and services thermal processing equipment, including solder reflow ovens, horizontal diffusion furnaces, and custom high-temp belt furnaces for use by semiconductor, electronics, and electro/mechanical assembly manufacturers; and diffusion and reflow thermal systems, as well as wafer cleaning equipment and related services. The Material and Substrate segment manufactures and sells consumables and machinery for lapping and polishing of materials, such as silicon wafers for semiconductor products; sapphire substrates for LED lighting and mobile devices; silicon carbide wafers for LED and power device applications; various glass and silica components for 3D image transmission; quartz and ceramic components for telecommunications devices; and medical device components, and optical and photonics applications. It also offers substrate products comprising of double-sided wafer cleaning system, entegrity head tester, substrate carrier, substrate polishing templates, double-sided lapping and polishing machines, single-sided polisher, and substrate process chemicals. The company sells its products through sales personnel, as well as a network of independent sales representatives and distributors. Amtech Systems, Inc. was incorporated in 1981 and is headquartered in Tempe, Arizona.

LiqTech International NASDAQ:LIQT

$1.92 +0.11 (+6.08%)

As of 09:43 AM Eastern

LiqTech International, Inc., a clean technology company, designs, develops, produces, markets, and sells automated filtering systems, ceramic silicon carbide liquid applications, and diesel particulate air filters in the United States, Canada, Europe, Asia, and South America. The company operates through Water, Ceramics, and Plastics segments. It also manufactures and sells silicon carbide ceramic filtration technologies for liquid and gas purification; and diesel particulate filters for exhaust emission control solutions to the verified retrofit and the original equipment manufacturer market. In addition, the company develops, manufactures, and sells liquid filtration systems, which are used for the marine scrubber systems, filtration of produced water, industrial applications, pool and spa water, food and beverage application, and silicon carbide membrane technology. Further, it provides flexible and plastics manufacturing products for machining, welding, bending, and solvent cementing. LiqTech International, Inc. sells its products primarily to industrial customers through direct sales, systems integrators, distributors, agents, and partners. The company was formerly known as Blue Moose Media, Inc. and changed its name to LiqTech International, Inc. in October 2011. LiqTech International, Inc. was founded in 2000 and is headquartered in Ballerup, Denmark.

Sono-Tek NASDAQ:SOTK

$3.61 -0.08 (-2.17%)

As of 09:54 AM Eastern

Sono-Tek Corporation designs and manufactures ultrasonic coating systems for applying on parts and components for the microelectronics/electronics, alternative energy, medical, industrial, and research and development/other markets worldwide. The company also designs and manufactures custom-engineered ultrasonic coating systems; and provides nozzles and generators for manufacturers' equipment. Its products include integrated multi-axis coating systems, integrated coating systems, fluxing systems, OEM systems, and other related systems. In addition, the company provides surface coating solutions and application consulting services. It markets and distributes its products through direct sales personnel, select independent distributors, and sales representatives. The company was incorporated in 1975 and is based in Milton, New York.

Westport Fuel Systems NASDAQ:WPRT

$3.88 -0.06 (-1.40%)

As of 09:55 AM Eastern

Westport Fuel Systems Inc. engages in the engineering, manufacturing, and supplying alternative fuel systems and components for use in transportation applications in Europe, Asia, North America, South America, and internationally. The company operates through two segments, Original Equipment Manufacturers and Independent Aftermarket. It offers alternative fuel systems and components, such as liquefied petroleum gas (LPG), compressed natural gas (CNG), liquefied natural gas (LNG), renewable natural gas or biomethane, and hydrogen; and pressure regulators, injectors, electronic control units, valves and filters, complete bi-fuel, mono-fuel and dual-fuel LPG and natural gas conversion kits and high-pressure hydrogen components. The company provides Westport's LNG high pressure direct injection 2.0 fuel system and bi-fuel products; offers turnkey solutions covering all process phases, including prototyping, development, calibration, validation, homologation, vehicle conversion and logistic services, as well as systems for diesel-powered vehicles; and supplies hydrogen fuel system components for light, medium, and heavy-duty applications. It offers its products under the AFS, BRC, Emer, GFI, HPDI, Stako, Prins, Zavoli, OMVL, TA Gas Technology, Vialle, and Valtek brands. The company was formerly known as Westport Innovations Inc. and changed its name to Westport Fuel Systems Inc. in June 2016. Westport Fuel Systems Inc. was incorporated in 1995 and is headquartered in Vancouver, Canada.

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Comparative Price Performance Over Time