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 Flex Ltd. 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 Flex Ltd. and Cognex Corporation compare based on key financial metrics to determine which better meets your investment needs.

About Flex Ltd. and Cognex Corporation

Flex Ltd. provides technology innovation, supply chain, and manufacturing solutions to data center, communications, enterprise, consumer, automotive, healthcare, industrial, and power industries in the Americas, Asia, and Europe. The company operates through three segments: Integrated Technology Solutions (ITS), Regulated Manufacturing Solutions (RMS), and Cloud and Power Infrastructure (CPI). The ITS segment offers flexible supply and manufacturing solutions for communications, including high speed networking, enterprise, and satellite communications systems, as well as lifestyle solutions comprising products across commercial, home, and personal product categories. Its RMS segment includes industrial products, such as mission critical automation, energy, and industrial infrastructure; automotive products, including compute and power electronics platforms and integrated systems; and healthcare products comprising regulated manufacturing for medical devices, drug delivery, and equipment. The CPI segment provides cloud and cooling products, such as integrated compute systems supporting power dense digital infrastructure deployments and advanced liquid cooling solutions supporting higher density, power intensive rack architectures; and power products that include utility and facility level electrical infrastructure enabling power delivery and high density rack and board level power systems. The company was formerly known as Flextronics International Ltd. and changed its name to Flex Ltd. in September 2016. Flex Ltd. was founded in 1969 and is headquartered in Austin, Texas.

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 Electronic Equipment, Instruments & Components and Flex Ltd., Cognex Corporation Stock News

As of July 31, 2026, Flex Ltd. had a $41.7 billion market capitalization, compared to the Electronic Equipment, Instruments & Components median of $995.2 million. Flex Ltd.’s stock is up 88.3% in 2026, down 4% in the previous five trading days and up 122.73% in the past year.

Currently, Flex Ltd.’s price-earnings ratio is 48.8. Flex Ltd.’s trailing 12-month revenue is $27.9 billion with a 3.3% net profit margin. Year-over-year quarterly sales growth most recently was 16.9%. Analysts expect adjusted earnings to reach $4.723 per share for the current fiscal year. Flex Ltd. does not currently pay a dividend.

As of July 31, 2026, Cognex Corporation had a $10.9 billion market cap, putting it in the 78th percentile of all stocks. Cognex Corporation’s stock is up 81.3% in 2026, up 5.1% in the previous five trading days and up 93.25% in the past year.

Currently, Cognex Corporation’s price-earnings ratio is 76.8. Cognex Corporation’s trailing 12-month revenue is $1.0 billion with a 13.6% net profit margin. Year-over-year quarterly sales growth most recently was 24.3%. Analysts expect adjusted earnings to reach $1.484 per share for the current fiscal year. Cognex Corporation currently has a 0.5% dividend yield.

How We Compare Flex Ltd. 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 Flex Ltd. and Cognex Corporation’s stock grades to see how they measure up against one another.

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Flex Ltd. and Cognex Corporation Growth Grades

Company	Ticker	Growth
Flex Ltd.	FLEX	C
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.

Flex Ltd. has a Growth Score of 56, which is Average. Cognex Corporation has a Growth Score of 56, which is Average.

The Growth Stock Winner: No Clear Winner

Neither Flex Ltd. or Cognex Corporation has a high enough Growth 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 portfolios. It’s important to look at a wide range of financial metrics in order to determine if Flex Ltd. or Cognex Corporation is the better investment when it comes to sustainable growth.

Flex Ltd. and Cognex Corporation’s Quality Grades

Company	Ticker	Quality
Flex Ltd.	FLEX	B
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.

Flex Ltd. has a Quality Score of 63, which is Strong. Cognex Corporation has a Quality Score of 94, which is Very Strong.

The Quality Grade Winner: Cognex Corporation

As you can clearly see from the Quality Grade breakdown above, Cognex Corporation has a better overall quality grade than Flex Ltd.. For investors who are looking for companies with higher quality than others in the same industry, Cognex Corporation could be a good stock to add to their portfolios. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Flex Ltd. and Cognex Corporation’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Flex Ltd.	FLEX	B
Cognex Corporation	CGNX	A

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.

Flex Ltd. has a Earnings Estimate Score of 76, which is Positive. Cognex Corporation has a Earnings Estimate Score of 84, which is Very Positive.

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 Flex Ltd.. 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.

Other Flex Ltd. and Cognex Corporation Grades

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

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.

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.

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 Flex Ltd. and Cognex Corporation pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Flex Ltd. or Cognex Corporation Stock?

Overall, Flex Ltd. stock has a Growth Score of 56, Estimate Revisions Score of 76 and Quality Score of 63.

Cognex Corporation stock has a Growth Score of 56, Estimate Revisions Score of 84 and Quality Score of 94.

Comparing Flex Ltd. 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.