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 Moog Inc. 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 Moog Inc. and ATI Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Moog Inc. and ATI Inc.

Moog Inc. designs, manufactures, and integrates precision motion and fluid controls and controls systems for original equipment manufacturers and end users in the aerospace, defense, and industrial markets in the United States, Germany, and internationally. The company operates through four segments: Space and Defense, Military Aircraft, Commercial Aircraft, and Industrial. Its Space and Defense segment provides critical defense components and motion-control systems used in defense vehicle platforms, missile systems, naval ships and submarines; high-performance components and systems used for space launch vehicles, satellites and spacecraft vehicles. The Military Aircraft segment designs, manufacture and integrate primary and secondary flight controls, mission-critical actuation systems, and products for various military fixed-wing aircraft and rotorcraft for both original equipment manufacturers and aftermarket customers. The Commercial Aircraft segment designs, manufactures, and integrates flight-critical control systems and products for various commercial aircraft including widebody, narrowbody, business jets and regional jets. The company’s Industrial segment provides customized and high-performance motion control components and systems for industrial automation, medical, simulation, and test and energy applications, including precision components used in heavy machinery, medical devices and components, power generation products, as well as simulation platforms for flight training and material testing applications. The company was formerly known as Moog Valve Company. Moog Inc. was incorporated in 1951 and is headquartered in East Aurora, New York.

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 Moog Inc., ATI Inc. Stock News

As of September 2, 2026, Moog Inc. had a $11.6 billion market capitalization, compared to the Aerospace & Defense median of $3.9 million. Moog Inc.’s stock is NA in 2026, NA in the previous five trading days and up 86.26% in the past year.

Currently, Moog Inc.’s price-earnings ratio is 31.0. Moog Inc.’s trailing 12-month revenue is $4.3 billion with a 8.7% net profit margin. Year-over-year quarterly sales growth most recently was 15.2%. Analysts expect adjusted earnings to reach $11.412 per share for the current fiscal year. Moog Inc. currently has a 0.3% dividend yield.

Currently, ATI Inc.’s price-earnings ratio is 59.2. 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 Moog Inc. 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 Moog Inc. and ATI Inc.’s stock grades to see how they measure up against one another.

Learn more about A+ Investor here!

Sign Up to Receive a Free Special Report Showing How A+ Grades Can Help You Make Smarter Investment Decisions

Moog Inc. and ATI Inc. Stock Value Grades

Company	Ticker	Value
Moog Inc.	MOG.A	D
ATI Inc.	ATI	F

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 Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

Moog Inc. has a Value Score of 22, which is Expensive. ATI Inc. has a Value Score of 11, which is Ultra Expensive.

The Value Stock Winner: No Clear Winner

Neither Moog Inc. or ATI Inc. has a high enough value 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 portfolio. It’s important to look at a wide range of financial metrics in order to determine if Moog Inc. or ATI Inc. is the better investment when it comes to value.

Moog Inc. and ATI Inc. Growth Grades

Company	Ticker	Growth
Moog Inc.	MOG.A	A
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.

Moog Inc. has a Growth Score of 95, which is Very Strong. ATI Inc. has a Growth Score of 95, which is Very Strong.

The Growth Grade Winner: It’s a Tie!

Looking at the Growth Grade breakdown above, both Moog Inc. and ATI Inc. have a grade of A. For investors who focus solely on a company’s upward growth, further research should be conducted into both companies’ other financial metrics before deciding whether to invest.

Moog Inc. and ATI Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Moog Inc.	MOG.A	A
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.

Moog Inc. has a Earnings Estimate Score of 82, which is Very Positive. ATI Inc. has a Earnings Estimate Score of 91, which is Very Positive.

The Earnings Estimate Revisions Grade Winner: It’s a Tie!

Looking at the Earnings Estimate Revisions Grade breakdown above, both Moog Inc. and ATI Inc. have a grade of A. For those focusing solely on a company’s estimate revisions, other financial metrics will need to be evaluated to determine whether Moog Inc. or ATI Inc. is a better fit.

Other Moog Inc. and ATI Inc. Grades

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

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.

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 Moog Inc. and ATI Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

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

Overall, Moog Inc. stock has a Value Score of 22, Growth Score of 95 and Estimate Revisions Score of 82.

ATI Inc. stock has a Value Score of 11, Growth Score of 95 and Estimate Revisions Score of 91.

Comparing Moog Inc. 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.