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 Amphenol Corporation or Jabil 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 Amphenol Corporation and Jabil Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Amphenol Corporation and Jabil Inc.

Amphenol Corporation, together with its subsidiaries, designs, manufactures, and markets electrical, electronic, and fiber optic connectors in the United States, China, and internationally. It operates through three segments: Communications Solutions, Harsh Environment Solutions, and Interconnect and Sensor Systems. The company offers connectors and connector systems, including high speed, radio frequency, power, fiber optic and other interconnect products; busbars and power distribution systems; power interconnect products; and other products. It also provides value-add products, such as backplane interconnect systems, cable assemblies and harnesses, and cable management products; and other products comprising flexible and rigid printed circuit boards, hinges, other mechanical, and production related products. In addition, the company offers consumer device, network infrastructure, and other antennas; coaxial, power, and specialty cables; and sensors and sensor-based products. It sells its products through its sales force, independent representatives, and a network of electronics distributors to original equipment manufacturers, electronic manufacturing services companies, original design manufacturers, and service providers in the automotive, commercial aerospace, communications networks, defense, industrial, information technology and data communications, mobile devices markets. Additionally, the company provides telecommunication and IT networking solutions. The company was founded in 1932 and is headquartered in Wallingford, Connecticut.

Jabil Inc. provides engineering, manufacturing, and supply chain solutions worldwide. It operates in three segments: Regulated Industries, Intelligent Infrastructure, and Connected Living and Digital Commerce. The company offers electronic hardware, and embedded software design services for analog, digital, radio frequency, power, sensor, and optical component applications; creates, develops, and connects concepts and specifications that optimize the function, value, and appearance of products for both consumers and manufacturing partners; design of plastic and metal components, enclosures, sub-assemblies, and systems, with advanced modeling and analysis of electronic, electro-mechanical, and optical assemblies; detail design, environmental applications, thermal and tooling management; develop solutions for virtual and/or augmented reality, light detection and ranging, 3D sensing, projection, and imaging; delivering PCBA design with CAD tools; and electrical and mechanical assemblies. The company also offers cloud data center server platforms; medical and consumer health devices; automotive assemblies; a digital commerce ecosystem; and smart controls and security for digital building and utilities. In addition, the company offers systems assembly, test, direct-order fulfillment, and configure-to-order services. It serves 5G, wireless and cloud, digital print and retail, industrial and semi-cap, networking and storage, automotive and transportation, connected devices, healthcare and packaging, and mobility industries. Jabil Inc. was formerly known as Jabil Circuit, Inc. and changed its name to Jabil Inc. in June 2017. The company was founded in 1966 and is based in Saint Petersburg, Florida.

Latest Electronic Equipment, Instruments & Components and Amphenol Corporation, Jabil Inc. Stock News

As of September 2, 2026, Amphenol Corporation had a $197.4 billion market capitalization, compared to the Electronic Equipment, Instruments & Components median of $1.1 million. Amphenol Corporation’s stock is NA in 2026, NA in the previous five trading days and up 46.53% in the past year.

Currently, Amphenol Corporation’s price-earnings ratio is 40.0. Amphenol Corporation’s trailing 12-month revenue is $29.0 billion with a 17.7% net profit margin. Year-over-year quarterly sales growth most recently was 55.0%. Analysts expect adjusted earnings to reach $5.317 per share for the current fiscal year. Amphenol Corporation currently has a 1.2% dividend yield.

Currently, Jabil Inc.’s price-earnings ratio is 37.4. Jabil Inc.’s trailing 12-month revenue is $33.6 billion with a 2.6% net profit margin. Year-over-year quarterly sales growth most recently was 11.8%. Analysts expect adjusted earnings to reach $12.765 per share for the current fiscal year. Jabil Inc. currently has a 0.1% dividend yield.

How We Compare Amphenol Corporation and Jabil 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 Amphenol Corporation and Jabil Inc.’s stock grades to see how they measure up against one another.

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Amphenol Corporation and Jabil Inc.’s Quality Grades

Company	Ticker	Quality
Amphenol Corporation	APH	B
Jabil Inc.	JBL	B

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.

Amphenol Corporation has a Quality Score of 66, which is Strong. Jabil Inc. has a Quality Score of 70, which is Strong.

The Quality Grade Winner: It’s a Tie!

Looking at the Quality Grade breakdown above, both Amphenol Corporation and Jabil Inc. have a grade of B. 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.

Amphenol Corporation and Jabil Inc.’s Momentum Grades

Company	Ticker	Momentum
Amphenol Corporation	APH	B
Jabil Inc.	JBL	C

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%.

Amphenol Corporation has a Momentum Score of 72, which is Strong. Jabil Inc. has a Momentum Score of 59, which is Average.

The Momentum Grade Winner: Amphenol Corporation

As you can clearly see from the Momentum Grade breakdown above, Amphenol Corporation is considered to have stronger momentum compared to Jabil Inc.. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Amphenol 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.

Amphenol Corporation and Jabil Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Amphenol Corporation	APH	B
Jabil Inc.	JBL	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.

Amphenol Corporation has a Earnings Estimate Score of 69, which is Positive. Jabil Inc. has a Earnings Estimate Score of 53, which is Neutral.

The Earnings Estimate Revisions Grade Winner: Amphenol Corporation

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, Amphenol Corporation has a better Earnings Estimate Revisions Grade than Jabil Inc.. For those who are specifically looking for companies with better short-term prospects when compared to other companies in the same industry, Amphenol 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 Amphenol Corporation and Jabil Inc. Grades

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

Growth investing builds on the idea that stocks of companies exhibiting strong, consistent and prolonged growth outperform those of slower-growth companies. AAII measures growth through consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations.

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 Amphenol Corporation and Jabil Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Amphenol Corporation or Jabil Inc. Stock?

Overall, Amphenol Corporation stock has a Momentum Score of 72, Estimate Revisions Score of 69 and Quality Score of 66.

Jabil Inc. stock has a Momentum Score of 59, Estimate Revisions Score of 53 and Quality Score of 70.

Comparing Amphenol Corporation and Jabil 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.

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.