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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.

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
$1.34
+0.8%
$1.20
$0.89
$1.98
$37.36M0.3923,569 shs15,919 shs
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
$14.43
-0.8%
$12.57
$7.72
$17.58
$115.20M0.2730,747 shs1,788 shs
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
$36.20
-1.1%
$34.39
$29.50
$64.50
$113.56M0.8424,967 shs617 shs
Tecogen Inc. stock logo
TGEN
Tecogen
$6.00
+12.8%
$3.18
$0.65
$6.16
$151.61M0.89235,050 shs706,380 shs
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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
0.00%+2.68%+2.29%+31.37%+7.20%
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
0.00%+9.00%+7.31%+11.76%+57.02%
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
0.00%-2.45%-1.13%+12.58%-21.97%
Tecogen Inc. stock logo
TGEN
Tecogen
0.00%+27.12%+89.27%+172.73%+682.57%
CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & Valuation
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
N/AN/AN/AN/AN/AN/AN/AN/A
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
0.8735 of 5 stars
0.03.00.00.02.70.01.3
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
1.3137 of 5 stars
0.03.00.00.02.71.71.3
Tecogen Inc. stock logo
TGEN
Tecogen
0.2211 of 5 stars
0.03.00.00.01.10.80.0
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
0.00
N/AN/AN/A
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
0.00
N/AN/AN/A
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
0.00
N/AN/AN/A
Tecogen Inc. stock logo
TGEN
Tecogen
0.00
N/AN/AN/A
CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
$61.78M0.60$0.47 per share2.88$0.85 per share1.58
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
$158.38M0.73$1.78 per share8.09$8.15 per share1.77
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
$42.80M2.65$3.45 per share10.48$14.55 per share2.49
Tecogen Inc. stock logo
TGEN
Tecogen
$23.71M6.39N/AN/AN/A
CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
$5.03M$0.0919.14N/A4.23%9.78%4.47%N/A
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
$10.47M$1.117.32N/A10.33%23.41%10.05%6/12/2025 (Estimated)
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
$9M$2.5013.51N/A19.99%17.04%14.66%8/13/2025 (Estimated)
Tecogen Inc. stock logo
TGEN
Tecogen
-$4.60M-$0.18N/AN/A-24.15%-42.06%-19.55%N/A

Latest GLGI, TAYD, TGEN, and PPIH Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
5/1/2025Q4 2025
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
N/A$0.27N/A$0.22N/A$44.99 million
4/11/2025Q3 2025
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
N/A$0.03N/A$0.03N/A$14.32 million
3/28/2025Q3 2025
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
N/A$0.64N/A$0.64N/A$10.57 million
3/17/2025Q4 2024
Tecogen Inc. stock logo
TGEN
Tecogen
N/A-$0.05N/A-$0.05N/A$6.08 million
CompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive Growth
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
N/AN/AN/AN/AN/A
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
N/AN/AN/AN/AN/A
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
N/AN/AN/AN/AN/A
Tecogen Inc. stock logo
TGEN
Tecogen
N/AN/AN/AN/AN/A
CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
0.42
2.05
1.52
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
0.12
1.94
1.64
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
N/A
6.88
5.66
Tecogen Inc. stock logo
TGEN
Tecogen
0.03
1.53
0.70

Institutional Ownership

CompanyInstitutional Ownership
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
10.33%
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
28.43%
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
17.62%
Tecogen Inc. stock logo
TGEN
Tecogen
N/A

Insider Ownership

CompanyInsider Ownership
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
N/A
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
6.00%
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
7.75%
Tecogen Inc. stock logo
TGEN
Tecogen
12.70%
CompanyEmployeesShares OutstandingFree FloatOptionable
Greystone Logistics, Inc. stock logo
GLGI
Greystone Logistics
20027.88 millionN/ANot Optionable
Perma-Pipe International Holdings, Inc. stock logo
PPIH
Perma-Pipe International
6107.98 million7.52 millionOptionable
Taylor Devices, Inc. stock logo
TAYD
Taylor Devices
1203.14 million2.89 millionNot Optionable
Tecogen Inc. stock logo
TGEN
Tecogen
8025.27 million21.93 millionNot Optionable

Recent News About These Companies

Tecogen to Participate in Semco Capital's CEO Event
Tecogen Reports First Quarter 2025 Financial Results
Q4 2024 Tecogen Inc Earnings Call
Tecogen Inc. Reports Improved Q4 2024 Results
Tecogen Inc. (TGEN) Q4 2024 Earnings Call Transcript
Tecogen Receives InVerde Order from Data Center in CT
Tecogen: Unlocking Explosive Growth in Data Center Power
Vertiv, Tecogen partner on data centre cooling

New MarketBeat Followers Over Time

Media Sentiment Over Time

Greystone Logistics stock logo

Greystone Logistics OTCMKTS:GLGI

$1.34 +0.01 (+0.75%)
As of 06/6/2025 11:58 AM Eastern

Greystone Logistics, Inc., through its subsidiaries, manufactures and markets plastic pallets and pelletized recycled plastic resins in the United States. The company offers rackable, can, nestable, display, monoblock, half-barrel and slim keg stackable, drum, and mid duty pallets. It sells its pallets directly, as well as through a network of independent contractor distributors. The company was formerly known as PalWeb Corporation and changed its name to Greystone Logistics, Inc. in March 2005. Greystone Logistics, Inc. was incorporated in 1969 and is based in Tulsa, Oklahoma.

Perma-Pipe International stock logo

Perma-Pipe International NASDAQ:PPIH

$14.43 -0.11 (-0.76%)
As of 10:10 AM Eastern
This is a fair market value price provided by Polygon.io. Learn more.

Perma-Pipe International Holdings, Inc., together with its subsidiaries, engineers, designs, manufactures, and sells specialty piping and leak detection systems. It offers insulated and jacketed district heating and cooling piping systems for energy distribution from central energy plants to various locations; and primary and secondary containment piping systems for transporting chemicals, hazardous fluids, and petroleum products, as well as engages in the coating and insulation of oil and gas gathering and transmission pipelines. The company also offers liquid and powder based anti-corrosion coatings for external and internal surfaces of steel pipe, including shapes like bends, reducers, tees, and other spools/fittings that is used in pipelines for the transportation of oil and gas products and potable water. It has operations in the United States, Canada, the Middle East, North Africa, Europe, India, and internationally. The company was formerly known as MFRI, Inc. and changed its name to Perma-Pipe International Holdings, Inc. in March 2017. Perma-Pipe International Holdings, Inc. was incorporated in 1993 and is headquartered in Spring, Texas.

Taylor Devices stock logo

Taylor Devices NASDAQ:TAYD

$36.20 -0.41 (-1.12%)
As of 10:19 AM Eastern
This is a fair market value price provided by Polygon.io. Learn more.

Taylor Devices, Inc. engages in design, development, manufacture, and marketing of shock absorption, rate control, and energy storage devices for use in machinery, equipment, and structures in the United States, Asia, and internationally. Its products include seismic dampers that are designed to mitigate the effects of earthquakes on structures; Fluidicshoks, which are compact shock absorbers primarily used in defense, aerospace, and commercial industries; and crane and industrial buffers, which are larger versions of the Fluidicshoks for industrial application on cranes and crane trolleys, truck docks, ladle and ingot cars, ore trolleys, and train car stops. The company's products also comprise self-adjusting shock absorbers that include versions of Fluidicshoks, and crane and industrial buffers, which automatically adjust to various impact conditions and are designed for high cycle application primarily in the heavy industry; liquid die springs that are used as component parts of machinery and equipment used in the manufacture of tools and dies; vibration dampers, which are primarily used by aerospace and defense industries to control the response of electronics and optical systems subjected to air, ship, or spacecraft vibration; machined springs used in the aerospace applications; and custom actuators for special aerospace and defense applications. It markets its products through a network of sales representatives and distributors. The company was incorporated in 1955 and is headquartered in North Tonawanda, New York.

Tecogen stock logo

Tecogen OTCMKTS:TGEN

$6.00 +0.68 (+12.78%)
As of 06/6/2025 04:10 PM Eastern

Tecogen Inc., together with its subsidiaries, designs, manufactures, markets, and maintains ultra-clean cogeneration products for multi-family residential, commercial, recreational, and industrial use primarily in the United States. It operates through three segments: Products, Services, and Energy Production. The Products segment designs, manufactures, and sells industrial and commercial cogeneration systems. The Services segment provides operation and maintenance services for products under long term service contracts. The Energy Production segment sells energy in the form of electricity, heat, hot water, and cooling to customers under long-term energy sales agreements. The company also offers natural gas-powered cogeneration systems for water and space heating, and/or air conditioning. Its product portfolio includes InVerde e+ and TecoPower cogeneration units for the supply electricity and hot water; Tecochill, an air-conditioning and refrigeration chillers, and hybrid-drive air-cooled and gas engine-driven chillers to produce chilled water and hot water; Tecofrost, a gas engine-driven refrigeration compressors to circulate refrigerant and provide hot water as a byproduct; and Ultera, an emissions control technology. In addition, the company provides long-term maintenance contracts, parts sales, and turnkey installation for products through a network of field service centers. It sells its products to healthcare, housing and hospitality, ice rink and low temperature, recreation facilities, industrial, indoor growing, and breweries markets through in-house marketing, as well as independent sales agents and representatives. Tecogen Inc. was incorporated in 2000 and is headquartered in Waltham, Massachusetts.