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 Coherent Corp. or Sanmina 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 Coherent Corp. and Sanmina Corporation compare based on key financial metrics to determine which better meets your investment needs.

About Coherent Corp. and Sanmina Corporation

Coherent Corp. develops, manufactures, and markets lasers, transceivers, other optical and optoelectronic devices, modules, and systems worldwide. Its products include critical components consisting of detectors, passive optics, thermal solutions, and PICS; silicon photonics and other advanced optical technologies; and coherent transmission components, transport products, optical amplifiers, passive optical components, optical line systems, and multi-rail platform. The company’s Datacenter and Communications segment offers transceivers, co-packaged optics, and optical circuit switches, as well as other systems, such as subsystems, modules, and semiconductor devices for datacenter and communications applications; and VCSELS, EELS, pump lasers, and other components, optics, and ICs for datacenter and communication applications. Its Industrial segment offers excimer lasers, solid-state lasers, and CO2 lasers; laser systems for various industrial applications, including semiconductor capital equipment, display manufacturing, precision manufacturing, and scientific research; and laser systems and subsystems comprising high-power lasers for materials processing. This segment also provides engineered materials, laser optics, thermoelectric components, and advanced ceramic and metal-matrix composite materials and products. It markets its products and services through a direct sales force, representatives, and distributors. The company was formerly known as II-VI Incorporated and changed its name to Coherent Corp. in September 2022. Coherent Corp. was incorporated in 1971 and is headquartered in Saxonburg, Pennsylvania.

Sanmina Corporation provides integrated manufacturing solutions, components, products and repair, logistics, and after-market services in the Americas, the Asia Pacific, Europe, the Middle East, and Africa. The company operates through two businesses: Integrated Manufacturing Solutions; and Components, Products and Services. The company offers product design and engineering, including concept development, detailed design, prototyping, validation, preproduction, manufacturing design release, and product industrialization; assembly and test services; direct order fulfillment and logistics services; after-market product service and support; and supply chain management services, as well as engaging in the manufacture of components, subassemblies, and complete systems; and direct order fulfilment and logistics services. In addition, the company provides components, such as printed circuit boards, backplane fabrication and backplane assemblies, cable assemblies, fabricated metal parts, precision machined parts, and plastic injected molded parts; memory solutions; storage platforms; optical, radio frequency, and microelectronic solutions; defense and aerospace products, design, manufacturing, repair, and refurbishment services; and cloud-based manufacturing execution software. It offers its products and services primarily to original equipment manufacturers in the industrial, medical, defense and aerospace, automotive, communications networks, and cloud infrastructure industries. The company was formerly known as Sanmina-SCI Corp. Sanmina Corporation was incorporated in 1980 and is headquartered in San Jose, California.

Latest Electronic Equipment, Instruments & Components and Coherent Corp., Sanmina Corporation Stock News

As of September 2, 2026, Coherent Corp. had a $52.6 billion market capitalization, compared to the Electronic Equipment, Instruments & Components median of $1.1 million. Coherent Corp.’s stock is NA in 2026, NA in the previous five trading days and up 205.97% in the past year.

Currently, Coherent Corp.’s price-earnings ratio is 65.2. Coherent Corp.’s trailing 12-month revenue is $7.1 billion with a 11.3% net profit margin. Year-over-year quarterly sales growth most recently was 33.7%. Analysts expect adjusted earnings to reach $9.416 per share for the current fiscal year. Coherent Corp. does not currently pay a dividend.

Currently, Sanmina Corporation’s price-earnings ratio is 33.6. Sanmina Corporation’s trailing 12-month revenue is $12.8 billion with a 2.4% net profit margin. Year-over-year quarterly sales growth most recently was 69.7%. Analysts expect adjusted earnings to reach $12.098 per share for the current fiscal year. Sanmina Corporation does not currently pay a dividend.

How We Compare Coherent Corp. and Sanmina 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 Coherent Corp. and Sanmina Corporation’s stock grades to see how they measure up against one another.

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Coherent Corp. and Sanmina Corporation Growth Grades

Company	Ticker	Growth
Coherent Corp.	COHR	A
Sanmina Corporation	SANM	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.

Coherent Corp. has a Growth Score of 82, which is Very Strong. Sanmina Corporation has a Growth Score of 56, which is Average.

The Growth Grade Winner: Coherent Corp.

As you can clearly see from the Growth Grade breakdown above, Coherent Corp. has a more attractive growth grade than Sanmina Corporation. For investors who focus solely on how a company is growing relative to other companies in the same industry, Coherent Corp. 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.

Coherent Corp. and Sanmina Corporation’s Quality Grades

Company	Ticker	Quality
Coherent Corp.	COHR	C
Sanmina Corporation	SANM	C

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.

Coherent Corp. has a Quality Score of 49, which is Average. Sanmina Corporation has a Quality Score of 47, which is Average.

The Quality Stock Winner: No Clear Winner

Neither Coherent Corp. or Sanmina Corporation has a high enough Quality 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 Coherent Corp. or Sanmina Corporation is the better investment when it comes to quality.

Coherent Corp. and Sanmina Corporation’s Momentum Grades

Company	Ticker	Momentum
Coherent Corp.	COHR	A
Sanmina Corporation	SANM	B

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%.

Coherent Corp. has a Momentum Score of 93, which is Very Strong. Sanmina Corporation has a Momentum Score of 75, which is Strong.

The Momentum Grade Winner: Coherent Corp.

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

Other Coherent Corp. and Sanmina Corporation Grades

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

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).

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 Coherent Corp. and Sanmina Corporation pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Coherent Corp. or Sanmina Corporation Stock?

Overall, Coherent Corp. stock has a Growth Score of 82, Momentum Score of 93 and Quality Score of 49.

Sanmina Corporation stock has a Growth Score of 56, Momentum Score of 75 and Quality Score of 47.

Comparing Coherent Corp. and Sanmina 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.