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

About Astronics Corporation, MDA Space Ltd. and MDA Space Ltd.

Astronics Corporation, through its subsidiaries, designs and manufactures products for the aerospace, defense, and electronics industries in the United States, rest of North America, Asia, Europe, South America, and internationally. It operates in two segments, Aerospace and Test Systems. The Aerospace segment offers lighting and safety systems, electrical power generation systems, distribution and seat motions systems, aircraft structures, avionics products, systems certification, and other products. This segment serves airframe manufacturers (OEM) that build aircraft for the commercial transport, military, and general aviation markets; suppliers to OEMs; and aircraft operators, such as airlines; suppliers to the aircraft operators; and branches of the U.S. Department of Defense. The Test Systems segment designs, develops, manufactures, and maintains automated test systems that support the aerospace and defense, communications, and mass transit industries, as well as training and simulation devices for commercial and military applications. This segment serves OEMs and prime government contractors for electronics and military products. The company was incorporated in 1968 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 Astronics Corporation, MDA Space Ltd. Stock News

As of August 20, 2026, Astronics Corporation had a $3.3 billion market capitalization, compared to the Aerospace & Defense median of $4.3 million. Astronics Corporation’s stock is up 68.3% in 2026, down 17.9% in the previous five trading days and up 168.53% in the past year.

Currently, Astronics Corporation’s price-earnings ratio is 43.4. Astronics Corporation’s trailing 12-month revenue is $942.1 million with a 8.4% net profit margin. Year-over-year quarterly sales growth most recently was 27.0%. Analysts expect adjusted earnings to reach $2.720 per share for the current fiscal year. Astronics Corporation does not currently pay a dividend.

Currently, MDA Space Ltd.’s price-earnings ratio is 56.0. MDA Space Ltd.’s trailing 12-month revenue is $1.3 billion with a 5.7% net profit margin. Year-over-year quarterly sales growth most recently was 28.3%. Analysts expect adjusted earnings to reach $0.961 per share for the current fiscal year. MDA Space Ltd. does not currently pay a dividend.

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

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Astronics Corporation, MDA Space Ltd. and MDA Space Ltd. Growth Grades

Company	Ticker	Growth
Astronics Corporation	ATRO	C
MDA Space Ltd.	MDA	B
MDA Space Ltd.	MDA	B

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.

Astronics Corporation has a Growth Score of 43, which is Average. MDA Space Ltd. has a Growth Score of 69, which is Strong. MDA Space Ltd. has a Growth Score of 69, which is Strong.

The Growth Grade Winner: MDA Space Ltd.

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

Astronics Corporation, MDA Space Ltd. and MDA Space Ltd.’s Momentum Grades

Company	Ticker	Momentum
Astronics Corporation	ATRO	A
MDA Space Ltd.	MDA	C
MDA Space Ltd.	MDA	C

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%.

Astronics Corporation has a Momentum Score of 92, which is Very Strong. MDA Space Ltd. has a Momentum Score of 56, which is Average. MDA Space Ltd. has a Momentum Score of 56, which is Average.

The Momentum Grade Winner: Astronics Corporation

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

Astronics Corporation, MDA Space Ltd. and MDA Space Ltd.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Astronics Corporation	ATRO	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.

Astronics Corporation has a Earnings Estimate Score of 67, which is Positive. MDA Space Ltd. has a Earnings Estimate Score of 27, which is Negative. MDA Space Ltd. has a Earnings Estimate Score of 27, which is Negative.

The Earnings Estimate Revisions Grade Winner: Astronics Corporation

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, Astronics Corporation 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, Astronics Corporation 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 Astronics Corporation, MDA Space Ltd. and MDA Space Ltd. Grades

In addition to Growth, Momentum and Estimate Revisions, 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 Astronics Corporation, 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, Astronics Corporation, MDA Space Ltd. or MDA Space Ltd. Stock?

Overall, Astronics Corporation stock has a Growth Score of 43, Momentum Score of 92 and Estimate Revisions Score of 67.

MDA Space Ltd. stock has a Growth Score of 69, Momentum Score of 56 and Estimate Revisions Score of 27.

MDA Space Ltd. stock has a Growth Score of 69, Momentum Score of 56 and Estimate Revisions Score of 27.

Comparing Astronics Corporation, 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.