Sifting through countless of stocks in the Machinery industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in ESCO Technologies Inc. or Cognex Corporation because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how ESCO Technologies Inc. and Cognex Corporation compare based on key financial metrics to determine which better meets your investment needs.

About ESCO Technologies Inc. and Cognex Corporation

ESCO Technologies Inc. provides engineered components and systems for aviation, navy, defense, and industrial customers. The Aerospace & Defense segment designs and manufactures specialty filtration products, including hydraulic filter elements and fluid control devices used in commercial and defense aerospace applications; miniature electro-explosive devices for military aircraft ejection seats and missile arming devices; manufactures and sells mission-critical bushings, pins, sleeves, and precision-tolerance machined components for landing gear, rotor heads, engine mounts, flight controls, and actuation systems for the aerospace and defense industries; designs, develops and manufactures elastomeric-based signature reduction solutions for U.S. naval vessels; and provides mission-critical signature and power management solutions. The Utility Solutions Group segment develops, manufactures, and delivers diagnostic testing solutions; and designs and manufactures decision support tools for the renewable energy industry, primarily wind and solar. The RF Test & Measurement segment designs and manufactures products and systems to measure and control RF energy for research and development, regulatory compliance, and medical and security applications; and turnkey systems, such as RF test facilities and measurement systems, acoustic test enclosures, RF and magnetically shielded rooms, and secure communication facilities. This segment also supplies RF absorptive materials, filters, antennas, field probes, test cells, proprietary measurement software, and other test accessories; and offers calibration and product tests, feedthrough capacitors, high current power, telephone, data and control line filters, and high-altitude electromagnetic protection filters. It distributes its products through distributors, sales representatives, direct sales teams, and in-house sales personnel. The company was incorporated in 1990 and is based in Saint Louis, Missouri.

Cognex Corporation provides machine vision products that capture and analyze visual information to automate manufacturing and distribution tasks in the United States, Europe, Greater China, and internationally. Its machine vision products are used to automate the manufacture and distribution of discrete items, such as mobile phones, automotive components, and e-commerce packages, by locating, identifying, inspecting, and measuring them. The company offers VisionPro software, a suite of patented vision tools for traditional rule-based tools and deep learning-enabled tools for advanced programming; vision systems that combine smart cameras and software to perform a wide range of tasks, including part location, identification, measurement, assembly verification, and robotic guidance; OneVision, a cloud-based platform designed to transform how manufacturers build, train, and scale AI-powered vision applications; In-Sight product line of vision systems and sensors; QuickBuild, which allows customers to build vision applications with a graphical and flowchart-based programming interface; DataMan, an image-based barcode reader for fixed-mount and handheld models, as well as barcode verifiers; and vision accessories, such as industrial cameras, lenses, lighting, vision controllers, frame grabbers, and I/O cards. It sells its products to the automotive, logistics, packaging, consumer electronics, medical-related, semiconductor, and consumer products industries. The company was incorporated in 1981 and is headquartered in Natick, Massachusetts.

Latest Machinery and ESCO Technologies Inc., Cognex Corporation Stock News

As of September 4, 2026, ESCO Technologies Inc. had a $7.1 billion market capitalization, compared to the Machinery median of $3.9 million. ESCO Technologies Inc.’s stock is up 40.2% in 2026, down 1.1% in the previous five trading days and up 34.79% in the past year.

Currently, ESCO Technologies Inc.’s price-earnings ratio is 50.9. ESCO Technologies Inc.’s trailing 12-month revenue is $1.3 billion with a 24.4% net profit margin. Year-over-year quarterly sales growth most recently was 14.4%. Analysts expect adjusted earnings to reach $8.357 per share for the current fiscal year. ESCO Technologies Inc. currently has a 0.1% dividend yield.

As of September 4, 2026, Cognex Corporation had a $10.5 billion market cap, putting it in the 78th percentile of all stocks. Cognex Corporation’s stock is up 73% in 2026, up 3% in the previous five trading days and up 40.61% in the past year.

Currently, Cognex Corporation’s price-earnings ratio is 59.9. Cognex Corporation’s trailing 12-month revenue is $1.1 billion with a 16.1% net profit margin. Year-over-year quarterly sales growth most recently was 16.9%. Analysts expect adjusted earnings to reach $1.692 per share for the current fiscal year. Cognex Corporation currently has a 0.5% dividend yield.

How We Compare ESCO Technologies Inc. and Cognex Corporation Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at ESCO Technologies Inc. and Cognex Corporation’s stock grades to see how they measure up against one another.

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ESCO Technologies Inc. and Cognex Corporation Stock Value Grades

Company	Ticker	Value
ESCO Technologies Inc.	ESE	F
Cognex Corporation	CGNX	F

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection.

Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

ESCO Technologies Inc. has a Value Score of 13, which is Ultra Expensive. Cognex Corporation has a Value Score of 10, which is Ultra Expensive.

The Value Stock Winner: No Clear Winner

Neither ESCO Technologies Inc. or Cognex Corporation has a high enough value grade to be considered a “winner.” Investors who are considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolio. It’s important to look at a wide range of financial metrics in order to determine if ESCO Technologies Inc. or Cognex Corporation is the better investment when it comes to value.

ESCO Technologies Inc. and Cognex Corporation Growth Grades

Company	Ticker	Growth
ESCO Technologies Inc.	ESE	B
Cognex Corporation	CGNX	C

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

ESCO Technologies Inc. has a Growth Score of 77, which is Strong. Cognex Corporation has a Growth Score of 56, which is Average.

The Growth Grade Winner: ESCO Technologies Inc.

As you can clearly see from the Growth Grade breakdown above, ESCO Technologies Inc. has a more attractive growth grade than Cognex Corporation. For investors who focus solely on how a company is growing relative to other companies in the same industry, ESCO Technologies Inc. could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

ESCO Technologies Inc. and Cognex Corporation’s Quality Grades

Company	Ticker	Quality
ESCO Technologies Inc.	ESE	A
Cognex Corporation	CGNX	A

Like the Value Grade, AAII’s A+ Investor Quality Grade comes from the percentile rank of key metrics. Specifically, the Quality Score is the percentile rank of the average of the percentile ranks of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and the F-Score.

The score is variable, meaning it can consider all eight measures or, should any of the eight measures not be valid, the remaining measures that are valid. To be assigned a Quality Score, stocks must have a valid (non-null) measure and corresponding ranking for at least four of the eight quality measures.

The Quality Score is used to assess the underlying “quality” of a particular stock. A higher-quality stock possesses traits associated with upside potential and reduced downside risk. Backtesting of the Quality Grade shows that stocks with higher grades, on average, outperformed stocks with lower grades over the period of 1998 through 2019.

Stocks receive better grades (higher scores) for having higher scores for the quality subcomponents and worse grades (lower scores) for lower scores for the subcomponents.

ESCO Technologies Inc. has a Quality Score of 88, which is Very Strong. Cognex Corporation has a Quality Score of 94, which is Very Strong.

The Quality Grade Winner: It’s a Tie!

Looking at the Quality Grade breakdown above, both ESCO Technologies Inc. and Cognex Corporation have a grade of A. For investors who focus solely on a company’s overall quality, you will need to conduct further research into both companies to see if they are a good fit for your portfolio. As a good rule of thumb, you should always analyze multiple factors based on a wide range of metrics before choosing a company to invest in.

Other ESCO Technologies Inc. and Cognex Corporation Grades

In addition to Quality, Growth and Value, A+ Investor also provides grades for Momentum and Estimate Revisions.

Momentum grades help uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming.

Earnings estimate revisions scores take into account the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, surprises beget further surprises‐or at least continued sales growth (the exact opposite is generally true, too).

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether ESCO Technologies Inc. and Cognex Corporation pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, ESCO Technologies Inc. or Cognex Corporation Stock?

Overall, ESCO Technologies Inc. stock has a Value Score of 13, Growth Score of 77 and Quality Score of 88.

Cognex Corporation stock has a Value Score of 10, Growth Score of 56 and Quality Score of 94.

Comparing ESCO Technologies Inc. and Cognex Corporation’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.