Sifting through countless of stocks in the Aerospace & Defense 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 Hexcel Corporation or ATI 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 Hexcel Corporation and ATI Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Hexcel Corporation and ATI Inc.

Hexcel Corporation develops, manufactures, and markets advanced lightweight composites technology. It operates through two segments, Composite Materials and Engineered Products. The company offers carbon fiber, reinforcements, prepregs and other fiber-reinforced matrix materials, honeycomb, resins, engineered core and composite structures for use in commercial aerospace, defense and space, and industrial applications. The Composite Materials segment manufactures and markets carbon fibers, fabrics, multi-axials, specialty reinforcements, prepregs and other fiber-reinforced matrix materials, structural adhesives, honeycomb, molding compounds, tooling materials, polyurethane systems, and laminates that are used in military aircraft, transportation, recreational products, and other industrial applications. The Engineered Products segment manufactures and markets aircraft structures and finished aircraft components, including wing to body fairings, wing panels, flight deck panels, door liners, rotorcraft blades, spars, and tip caps; and aircraft structural sub-components and semi-finished components used in rotorcraft blades, engine nacelles, and aircraft surfaces, such as flaps, wings, elevators, and fairings; and RF interference control products for military and aerospace applications. This segment also provides interference control materials, structural composites, and services; dielectric absorber foams; magnetic absorbers; and thermoplastics for commercial and defense applications. The company sells its products directly through its marketing managers, product managers, and sales personnel, as well as through independent distributors in the Americas, Europe, the Asia Pacific, India, and Africa. Hexcel Corporation was founded in 1946 and is headquartered in Stamford, Connecticut.

ATI Inc. produces and sells specialty materials and complex components worldwide. It operates in two segments, High Performance Materials & Components, and Advanced Alloys & Solutions. The company produces high performance materials, including titanium and titanium-based alloys, nickel- and cobalt-based alloys and superalloys, advanced powder alloys and other specialty materials, and metallic powder alloys, as well as long product forms, such as ingot, billet, bar, rod, wire, shapes and rectangles, seamless tubes, plus precision forgings, components, and machined parts. It also offers zirconium and related alloys, including hafnium and niobium, nickel-based alloys, titanium and titanium-based alloys, and specialty alloys in various forms, such as plate, sheet, and precision rolled strip products. In addition, the company provides hot-rolling conversion services comprising carbon steel products. It serves medical and specialty energy, aerospace and defense, construction and mining, transportation, oil and gas, automotive, food equipment and appliances, and mining markets. The company was formerly known as Allegheny Technologies Incorporated. ATI Inc. was founded in 1996 and is headquartered in Dallas, Texas.

Latest Aerospace & Defense and Hexcel Corporation, ATI Inc. Stock News

As of September 3, 2026, Hexcel Corporation had a $7.0 billion market capitalization, compared to the Aerospace & Defense median of $4.0 million. Hexcel Corporation’s stock is up 24.5% in 2026, down 3% in the previous five trading days and up 44.69% in the past year.

Currently, Hexcel Corporation’s price-earnings ratio is 46.7. Hexcel Corporation’s trailing 12-month revenue is $2.0 billion with a 7.8% net profit margin. Year-over-year quarterly sales growth most recently was 8.0%. Analysts expect adjusted earnings to reach $2.399 per share for the current fiscal year. Hexcel Corporation currently has a 0.8% dividend yield.

As of September 3, 2026, ATI Inc. had a $27.9 billion market cap, putting it in the 89th percentile of all stocks. ATI Inc.’s stock is up 83.6% in 2026, down 0.1% in the previous five trading days and up 167.34% in the past year.

Currently, ATI Inc.’s price-earnings ratio is 60.0. ATI Inc.’s trailing 12-month revenue is $4.7 billion with a 10.1% net profit margin. Year-over-year quarterly sales growth most recently was 10.6%. Analysts expect adjusted earnings to reach $5.117 per share for the current fiscal year. ATI Inc. does not currently pay a dividend.

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

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Hexcel Corporation and ATI Inc. Growth Grades

Company	Ticker	Growth
Hexcel Corporation	HXL	C
ATI Inc.	ATI	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.

Hexcel Corporation has a Growth Score of 56, which is Average. ATI Inc. has a Growth Score of 95, which is Very Strong.

The Growth Grade Winner: ATI Inc.

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

Hexcel Corporation and ATI Inc.’s Momentum Grades

Company	Ticker	Momentum
Hexcel Corporation	HXL	B
ATI Inc.	ATI	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%.

Hexcel Corporation has a Momentum Score of 68, which is Strong. ATI Inc. has a Momentum Score of 93, which is Very Strong.

The Momentum Grade Winner: ATI Inc.

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

Hexcel Corporation and ATI Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Hexcel Corporation	HXL	B
ATI Inc.	ATI	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.

Hexcel Corporation has a Earnings Estimate Score of 67, which is Positive. ATI Inc. has a Earnings Estimate Score of 91, which is Very Positive.

The Earnings Estimate Revisions Grade Winner: ATI Inc.

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, ATI Inc. has a better Earnings Estimate Revisions Grade than Hexcel Corporation. For those who are specifically looking for companies with better short-term prospects when compared to other companies in the same industry, ATI 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 Hexcel Corporation and ATI 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 Hexcel Corporation and ATI Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Hexcel Corporation or ATI Inc. Stock?

Overall, Hexcel Corporation stock has a Growth Score of 56, Momentum Score of 68 and Estimate Revisions Score of 67.

ATI Inc. stock has a Growth Score of 95, Momentum Score of 93 and Estimate Revisions Score of 91.

Comparing Hexcel Corporation and ATI 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.