Sifting through countless of stocks in the Communications Equipment 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 Calix, Inc. or Viavi Solutions 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 Calix, Inc. and Viavi Solutions Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Calix, Inc. and Viavi Solutions Inc.

Calix, Inc., together with its subsidiaries, engages in the provision of cloud and software platforms, and systems and services in the United States, rest of Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company cloud and software platforms, and systems and services enable broadband service providers (BSPs) to provide a range of services. It offers Calix Cloud platform comprising Calix Engagement Cloud, Calix Operations Cloud, and Calix Service Cloud, which are configurable to display role-based insights and enable BEPs to anticipate and target new revenue-generating services and applications through mobile application, such as CommandIQ for residents and CommandWorx for businesses; Calix Intelligent Access, an access network solution for automated and intelligent networks; and Calix Unlimited Subscriber, a solution for subscriber managed services. It also provides SmartLife managed services, including SmartHome managed services and applications to enhance, operate and secure the connected experience of subscribers in their home for Wi-Fi, advanced content control, network security, connected cameras, and social media monitoring; SmartTown managed services that reimagine community Wi-Fi as a ubiquitous, secure, and managed experience across a BEP’s footprint; SmartBiz managed services that address the business networking and productivity needs of business owners with an all-in-one managed service; SMARTMDU managed services provide purpose-built, flexible connectivity solutions for multi-family properties of any type. In addition, the company offers Wi-Fi systems under GigaSpire and GigaPro brands to be ready for deployment as a complete subscriber experience solution for BEP’s residential and business subscribers. It provides its products through its direct sales force and resellers. Calix, Inc. was incorporated in 1999 and is headquartered in San Jose, California.

Viavi Solutions Inc. engages in the provision of test and measurement and optical technologies for military, aerospace, railway and first responder communications in the Americas, the Asia-Pacific, Europe, the Middle East, and Africa. The company operates in two segments, Network and Service Enablement (NSE) and Optical Security and Performance Products (OSP). The NSE segment provides integrated portfolio of test, monitoring, assurance, and resilient PNT solutions that enable and secure critical infrastructure. This segment also offers instruments, microprobes, and perpetual software licenses that support the development, production, maintenance, and optimization of network systems, as well as repair, calibration, extended warranty, software support, technical assistance, training, and consulting services. The OSP segment leverages its core optical coating technologies and volume manufacturing capability to design, manufacture, and sell technologies for the anti-counterfeiting, 3D sensing, government and aerospace, automotive, and industrial markets. The company was formerly known as JDS Uniphase Corporation. Viavi Solutions Inc. was founded in 1923 and is headquartered in Chandler, Arizona.

Latest Communications Equipment and Calix, Inc., Viavi Solutions Inc. Stock News

As of September 2, 2026, Calix, Inc. had a $2.4 billion market capitalization, compared to the Communications Equipment median of $370.8 million. Calix, Inc.’s stock is down 29.3% in 2026, down 0.7% in the previous five trading days and down 36.31% in the past year.

Currently, Calix, Inc.’s price-earnings ratio is 51.3. Calix, Inc.’s trailing 12-month revenue is $1.1 billion with a 4.6% net profit margin. Year-over-year quarterly sales growth most recently was 21.2%. Analysts expect adjusted earnings to reach $1.722 per share for the current fiscal year. Calix, Inc. does not currently pay a dividend.

As of September 2, 2026, Viavi Solutions Inc. had a $8.5 billion market cap, putting it in the 75th percentile of all stocks. Viavi Solutions Inc.’s stock is up 91.9% in 2026, down 11.1% in the previous five trading days and up 200.26% in the past year.

Currently, Viavi Solutions Inc. does not have a price-earnings ratio. Viavi Solutions Inc.’s trailing 12-month revenue is $1.5 billion with a -2.0% net profit margin. Year-over-year quarterly sales growth most recently was 52.5%. Analysts expect adjusted earnings to reach $1.644 per share for the current fiscal year. Viavi Solutions Inc. does not currently pay a dividend.

How We Compare Calix, Inc. and Viavi Solutions 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 Calix, Inc. and Viavi Solutions Inc.’s stock grades to see how they measure up against one another.

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Calix, Inc. and Viavi Solutions Inc. Growth Grades

Company	Ticker	Growth
Calix, Inc.	CALX	A
Viavi Solutions Inc.	VIAV	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.

Calix, Inc. has a Growth Score of 82, which is Very Strong. Viavi Solutions Inc. has a Growth Score of 56, which is Average.

The Growth Grade Winner: Calix, Inc.

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

Calix, Inc. and Viavi Solutions Inc.’s Momentum Grades

Company	Ticker	Momentum
Calix, Inc.	CALX	F
Viavi Solutions Inc.	VIAV	A

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%.

Calix, Inc. has a Momentum Score of 20, which is Very Weak. Viavi Solutions Inc. has a Momentum Score of 92, which is Very Strong.

The Momentum Grade Winner: Viavi Solutions Inc.

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

Calix, Inc. and Viavi Solutions Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Calix, Inc.	CALX	B
Viavi Solutions Inc.	VIAV	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.

Calix, Inc. has a Earnings Estimate Score of 61, which is Positive. Viavi Solutions Inc. has a Earnings Estimate Score of 94, which is Very Positive.

The Earnings Estimate Revisions Grade Winner: Viavi Solutions Inc.

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

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

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 Calix, Inc. and Viavi Solutions Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Calix, Inc. or Viavi Solutions Inc. Stock?

Overall, Calix, Inc. stock has a Growth Score of 82, Momentum Score of 20 and Estimate Revisions Score of 61.

Viavi Solutions Inc. stock has a Growth Score of 56, Momentum Score of 92 and Estimate Revisions Score of 94.

Comparing Calix, Inc. and Viavi Solutions 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.