Which Is a Better Investment, Cognex Corporation or Mirion Technologies Inc Stock?

By AAII Staff
September 03, 2026
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Sifting through countless of stocks in the Electronic Equipment, Instruments & Components 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 Cognex Corporation, Mirion Technologies or Inc. 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 Cognex Corporation, Mirion Technologies and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Cognex Corporation, Mirion Technologies and Inc.

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.

Mirion Technologies, Inc. provides radiation detection, measurement, analysis, and monitoring products and services in North America, Europe, and the Asia Pacific. It operates in two segments, Medical, and Nuclear & Safety. The Medical segment offers radiation oncology quality assurance and dosimetry solutions; patient safety solutions for diagnostic imaging and radiation therapy centers; radiation therapy quality assurance solutions for calibrating and verifying imaging and treatment accuracy; and radionuclide therapy products for nuclear medicine applications, such as product handling, medical imaging furniture, and rehabilitation products. This segment improves the quality and safety of cancer care delivery; and supports applications across medical diagnostics and practitioner safety. The Nuclear & Safety segment focuses on addressing critical radiation safety, measurement, and analysis applications; and provides personal radiation detection, identification equipment, and analysis tools. The company also offers include radiation measurement and monitoring solutions, reactor instrumentation and control detectors, imaging systems and cameras, and waste management systems; laboratory and scientific analysis systems comprising gamma/alpha spectroscopy, alpha/beta counting, specialty detectors, and spectroscopy software; radiation measurement and health physics instrumentation; and contamination and clearance monitors. It serves hospitals, clinics and urgent care facilities, dental and veterinary offices, radiation treatment facilities, OEMs for radiation therapy, laboratories, military organizations, government agencies, industrial companies, power and utility companies, reactor design firms, and NPPs. The company was formerly known as Global Monitoring Systems, Inc. and changed its name to Mirion Technologies, Inc. in January 2006. Mirion Technologies, Inc. was incorporated in 2005 and is headquartered in Atlanta, Georgia.

Latest Electronic Equipment, Instruments & Components and Cognex Corporation, Mirion Technologies, Inc. Stock News

As of September 2, 2026, Cognex Corporation had a $10.1 billion market capitalization, compared to the Electronic Equipment, Instruments & Components median of $1.1 million. Cognex Corporation’s stock is NA in 2026, NA in the previous five trading days and up 35.4% in the past year.

Currently, Cognex Corporation’s price-earnings ratio is 57.6. 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 0.6% dividend yield.

Currently, Mirion Technologies, Inc.’s price-earnings ratio is 176.9. Mirion Technologies, Inc.’s trailing 12-month revenue is $1.0 billion with a 2.4% net profit margin. Year-over-year quarterly sales growth most recently was 19.7%. Analysts expect adjusted earnings to reach $0.541 per share for the current fiscal year. Mirion Technologies, Inc. does not currently pay a dividend.

How We Compare Cognex Corporation, Mirion Technologies and Inc. 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 Cognex Corporation, Mirion Technologies and Inc.’s stock grades to see how they measure up against one another.

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Cognex Corporation, Mirion Technologies and Inc. Growth Grades

Company Ticker Growth
Cognex Corporation CGNX C
Mirion Technologies, Inc. MIR A

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.

Cognex Corporation has a Growth Score of 56, which is Average. Mirion Technologies, Inc. has a Growth Score of 100, which is Very Strong.

The Growth Grade Winner: Mirion Technologies, Inc.

As you can clearly see from the Growth Grade breakdown above, Mirion 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, Mirion 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.

Cognex Corporation, Mirion Technologies and Inc.’s Momentum Grades

Company Ticker Momentum
Cognex Corporation CGNX B
Mirion Technologies, Inc. MIR D

Momentum grades help to 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. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

Cognex Corporation has a Momentum Score of 62, which is Strong. Mirion Technologies, Inc. has a Momentum Score of 21, which is Weak.

The Momentum Grade Winner: Cognex Corporation

As you can clearly see from the Momentum Grade breakdown above, Cognex Corporation is considered to have stronger momentum compared to Mirion Technologies, Inc.. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Cognex Corporation could be a good stock to invest in. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Cognex Corporation, Mirion Technologies and Inc.’s Estimate Revisions Grades

Company Ticker Earnings Estimate
Cognex Corporation CGNX B
Mirion Technologies, Inc. MIR C

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

Estimate revisions offer an indication of what analysts are thinking about the short-term prospects of a firm. Estimate revisions are based on the statistical significance of a firm’s last two quarterly earnings surprises and the percentage change in its consensus estimate for the current fiscal year over the past month and past three months.

Cognex Corporation has a Earnings Estimate Score of 80, which is Positive. Mirion Technologies, Inc. has a Earnings Estimate Score of 59, which is Neutral.

The Earnings Estimate Revisions Grade Winner: Cognex Corporation

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, Cognex Corporation has a better Earnings Estimate Revisions Grade than Mirion Technologies, Inc.. For those who are specifically looking for companies with better short-term prospects when compared to other companies in the same industry, Cognex Corporation could be a good stock to invest in. However, it’s important to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

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Other Cognex Corporation, Mirion Technologies and Inc. Grades

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

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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 Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite 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 F-Score.

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 Cognex Corporation, Mirion Technologies and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

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

Overall, Cognex Corporation stock has a Growth Score of 56, Momentum Score of 62 and Estimate Revisions Score of 80.

Mirion Technologies, Inc. stock has a Growth Score of 100, Momentum Score of 21 and Estimate Revisions Score of 59.

Comparing Cognex Corporation, Mirion Technologies and Inc.’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.

Learn More About A+ Investor

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.



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