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., MDA Space Ltd. or MDA Space Ltd. 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., MDA Space Ltd. and MDA Space Ltd. compare based on key financial metrics to determine which better meets your investment needs.

About Moog Inc., MDA Space Ltd. and MDA Space Ltd.

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.

MDA Space Ltd. provides space technology solutions and services in Canada, the United States, Europe, Asia, the Middle East, and internationally. It offers satellite communications solutions, such as space-based broadband Internet, direct-to-device satellite communication, and IoT connectivity; MDA AURORA, a software-defined digital satellite product line; and autonomous robotics systems and services used to operate in space and on the surfaces of the Moon and Mars. The company also provides robotic systems, robotic interfaces, tooling, robotic ground control stations, and operations services; electro-optic and light detection and ranging sensors, vision and targeting systems, guidance, navigation, and control subsystems and planetary rover locomotion subsystems; MDA SKYMAKER, a suite of scalable and modular space robotics; and Canadarm3, a robotics system. In addition, it offers satellite-generated imagery and data to deliver critical and value-added insights for end users, such as national security, climate change monitoring, and maritime surveillance; collection, processing, and dissemination of Earth imagery data from space; defense command, control, communications, computers, intelligence, surveillance, and reconnaissance solutions, including command and control systems and airborne surveillance solutions; aeronautical navigation information solutions; and long endurance uncrewed aerial vehicle surveillance services. Further, operates as an owner and operator of the RADARSAT-2 Earth observation satellite; and is involved in the operation of MDA CHORUS, an Earth observation mission. It serves governments and space agencies, commercial space companies, and defense and aerospace prime contractors in the space industry. The company was formerly known as MDA Ltd. and changed its name to MDA Space Ltd. in May 2024. MDA Space Ltd. was incorporated in 1969 and is headquartered in Brampton, Canada.

MDA Space Ltd. provides space technology solutions and services in Canada, the United States, Europe, Asia, the Middle East, and internationally. It offers satellite communications solutions, such as space-based broadband Internet, direct-to-device satellite communication, and IoT connectivity; MDA AURORA, a software-defined digital satellite product line; and autonomous robotics systems and services used to operate in space and on the surfaces of the Moon and Mars. The company also provides robotic systems, robotic interfaces, tooling, robotic ground control stations, and operations services; electro-optic and light detection and ranging sensors, vision and targeting systems, guidance, navigation, and control subsystems and planetary rover locomotion subsystems; MDA SKYMAKER, a suite of scalable and modular space robotics; and Canadarm3, a robotics system. In addition, it offers satellite-generated imagery and data to deliver critical and value-added insights for end users, such as national security, climate change monitoring, and maritime surveillance; collection, processing, and dissemination of Earth imagery data from space; defense command, control, communications, computers, intelligence, surveillance, and reconnaissance solutions, including command and control systems and airborne surveillance solutions; aeronautical navigation information solutions; and long endurance uncrewed aerial vehicle surveillance services. Further, operates as an owner and operator of the RADARSAT-2 Earth observation satellite; and is involved in the operation of MDA CHORUS, an Earth observation mission. It serves governments and space agencies, commercial space companies, and defense and aerospace prime contractors in the space industry. The company was formerly known as MDA Ltd. and changed its name to MDA Space Ltd. in May 2024. MDA Space Ltd. was incorporated in 1969 and is headquartered in Brampton, Canada.

Latest Aerospace & Defense and Moog Inc., MDA Space Ltd. Stock News

As of June 11, 2026, Moog Inc. had a $12.8 billion market capitalization, compared to the Aerospace & Defense median of $4.9 million. Moog Inc.’s stock is up 66.5% in 2026, up 9.2% in the previous five trading days and up 123.96% in the past year.

Currently, Moog Inc.’s price-earnings ratio is 45.8. Moog Inc.’s trailing 12-month revenue is $4.2 billion with a 6.8% net profit margin. Year-over-year quarterly sales growth most recently was 12.6%. Analysts expect adjusted earnings to reach $10.607 per share for the current fiscal year. Moog Inc. currently has a 0.3% dividend yield.

Currently, MDA Space Ltd.’s price-earnings ratio is 71.1. MDA Space Ltd.’s trailing 12-month revenue is $1.3 billion with a 6.0% net profit margin. Year-over-year quarterly sales growth most recently was 36.2%. Analysts expect adjusted earnings to reach $1.069 per share for the current fiscal year. MDA Space Ltd. does not currently pay a dividend.

How We Compare Moog Inc., MDA Space Ltd. and MDA Space Ltd. 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., MDA Space Ltd. and MDA Space Ltd.’s stock grades to see how they measure up against one another.

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Moog Inc., MDA Space Ltd. and MDA Space Ltd. Stock Value Grades

Company	Ticker	Value
Moog Inc.	MOG.A	F
MDA Space Ltd.	MDA	F
MDA Space Ltd.	MDA	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 17, which is Ultra Expensive. MDA Space Ltd. has a Value Score of 16, which is Ultra Expensive. MDA Space Ltd. has a Value Score of 16, which is Ultra Expensive.

The Value Stock Winner: No Clear Winner

Neither Moog Inc., MDA Space Ltd. or MDA Space Ltd. 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., MDA Space Ltd. or MDA Space Ltd. is the better investment when it comes to value.

Moog Inc., MDA Space Ltd. and MDA Space Ltd.’s Quality Grades

Company	Ticker	Quality
Moog Inc.	MOG.A	B
MDA Space Ltd.	MDA	C
MDA Space Ltd.	MDA	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.

Moog Inc. has a Quality Score of 72, which is Strong. MDA Space Ltd. has a Quality Score of 43, which is Average. MDA Space Ltd. has a Quality Score of 43, which is Average.

The Quality Grade Winner: Moog Inc.

As you can clearly see from the Quality Grade breakdown above, Moog Inc. has a better overall quality grade than MDA Space Ltd.. For investors who are looking for companies with higher quality than others in the same industry, Moog Inc. could be a good stock to add to their portfolios. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Moog Inc., MDA Space Ltd. and MDA Space Ltd.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Moog Inc.	MOG.A	B
MDA Space Ltd.	MDA	D
MDA Space Ltd.	MDA	D

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 65, which is Positive. MDA Space Ltd. has a Earnings Estimate Score of 32, which is Negative. MDA Space Ltd. has a Earnings Estimate Score of 32, which is Negative.

The Earnings Estimate Revisions Grade Winner: Moog Inc.

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

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

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.

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.

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., MDA Space Ltd. and MDA Space Ltd. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Moog Inc., MDA Space Ltd. or MDA Space Ltd. Stock?

Overall, Moog Inc. stock has a Value Score of 17, Estimate Revisions Score of 65 and Quality Score of 72.

MDA Space Ltd. stock has a Value Score of 16, Estimate Revisions Score of 32 and Quality Score of 43.

MDA Space Ltd. stock has a Value Score of 16, Estimate Revisions Score of 32 and Quality Score of 43.

Comparing Moog Inc., MDA Space Ltd. and MDA Space Ltd.’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.