Sifting through countless of stocks in the Automobile Components 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 Magna International Inc. or Aptiv PLC 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 Magna International Inc. and Aptiv PLC compare based on key financial metrics to determine which better meets your investment needs.

About Magna International Inc. and Aptiv PLC

Magna International Inc. operates as an automotive supplier in North America, Europe, the Asia Pacific, and internationally. It operates through four segments: Body Exteriors & Structures, Power & Vision, Seating Systems, and Complete Vehicles. The company offers design and vehicle concepts, complete vehicle engineering and integration, human-machine interface, developing modules and systems, platform solutions, prototyping and low-volume manufacturing, vehicle safety testing, aerospace, and integrating functionality, features, and ADAS; and complete vehicle solutions, body-in-white, paint, and assembly complete vehicle manufacturing products. It also provides engineering services for commercial vehicles, such as propulsion engineering, software and simulation, testing services, and smart production; OPTiForm, a battery enclosure, steel battery enclosures, aluminum battery enclosures, and hybrid battery enclosures; battery enclosure production and engineering solutions; SmartAccess, a B-Pillarless power door system; and composite EV battery covers. In addition, it offers energy management solutions; hot stamping, high strength steels, aluminum castings, and high-pressure vacuum casting; suspension links and arms, twist axle, carbon fiber subframe, and frames; ADAS and Automated Driving, including Cameras, thermal sensing, interior sensing, complete radar portfolio, and compute units; and chassis control, glow plug control, powertrain control, and mechatronic control modules. Further, it provides exterior and interior products comprising assist steps, engineered glass, exterior solutions, greenhouse surrounds, lighting, mechatronics, mirrors, and seating; and powertrain products consisting BEV, Hybrid, and ICE powertrain, as well as modules and components, and energy storage systems. Magna International Inc. was founded in 1957 and is based in Aurora, Canada.

Aptiv PLC, an industrial technology company, provides hardware and software solutions to support automotive and other industries in North America, Europe, the Middle East, Africa, the Asia Pacific, and South America. It operates through three segments: Advanced Safety and User Experience, Engineered Components, and Electrical Distribution Systems. The company offers active safety, user experience and smart vehicle compute, and software products for vehicle safety and security, including intelligent sensors, compute platforms, and software tools and services. It also provides connection systems, interconnects, and cable management and protection solutions for the distribution of power, signal, and data. Aptiv PLC was incorporated in 2011 and is based in Schaffhausen, Switzerland.

Latest Automobile Components and Magna International Inc., Aptiv PLC Stock News

As of September 4, 2026, Magna International Inc. had a $18.3 billion market capitalization, compared to the Automobile Components median of $2.7 million. Magna International Inc.’s stock is up 29.2% in 2026, up 4.6% in the previous five trading days and up 51.86% in the past year.

Currently, Magna International Inc.’s price-earnings ratio is 25.4. Magna International Inc.’s trailing 12-month revenue is $42.7 billion with a 1.8% net profit margin. Year-over-year quarterly sales growth most recently was 3.3%. Analysts expect adjusted earnings to reach $7.040 per share for the current fiscal year. Magna International Inc. currently has a 2.9% dividend yield.

As of September 4, 2026, Aptiv PLC had a $10.0 billion market cap, putting it in the 77th percentile of all stocks. Aptiv PLC’s stock is down 37% in 2026, up 4.8% in the previous five trading days and down 40.4% in the past year.

Currently, Aptiv PLC’s price-earnings ratio is 21.8. Aptiv PLC’s trailing 12-month revenue is $20.5 billion with a 1.1% net profit margin. Year-over-year quarterly sales growth most recently was 2.3%. Analysts expect adjusted earnings to reach $5.724 per share for the current fiscal year. Aptiv PLC does not currently pay a dividend.

How We Compare Magna International Inc. and Aptiv PLC 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 Magna International Inc. and Aptiv PLC’s stock grades to see how they measure up against one another.

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Magna International Inc. and Aptiv PLC Growth Grades

Company	Ticker	Growth
Magna International Inc.	MGA	B
Aptiv PLC	APTV	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.

Magna International Inc. has a Growth Score of 73, which is Strong. Aptiv PLC has a Growth Score of 95, which is Very Strong.

The Growth Grade Winner: Aptiv PLC

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

Magna International Inc. and Aptiv PLC’s Quality Grades

Company	Ticker	Quality
Magna International Inc.	MGA	A
Aptiv PLC	APTV	A

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.

Magna International Inc. has a Quality Score of 92, which is Very Strong. Aptiv PLC has a Quality Score of 93, which is Very Strong.

The Quality Grade Winner: It’s a Tie!

Looking at the Quality Grade breakdown above, both Magna International Inc. and Aptiv PLC have a grade of A. For investors who focus solely on a company’s overall quality, you will need to conduct further research into both companies to see if they are a good fit for your portfolio. As a good rule of thumb, you should always analyze multiple factors based on a wide range of metrics before choosing a company to invest in.

Magna International Inc. and Aptiv PLC’s Momentum Grades

Company	Ticker	Momentum
Magna International Inc.	MGA	B
Aptiv PLC	APTV	F

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%.

Magna International Inc. has a Momentum Score of 70, which is Strong. Aptiv PLC has a Momentum Score of 12, which is Very Weak.

The Momentum Grade Winner: Magna International Inc.

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

Other Magna International Inc. and Aptiv PLC Grades

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

Earnings estimate revisions scores take into account the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, surprises beget further surprises‐or at least continued sales growth (the exact opposite is generally true, too).

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.

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 Magna International Inc. and Aptiv PLC pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Magna International Inc. or Aptiv PLC Stock?

Overall, Magna International Inc. stock has a Growth Score of 73, Momentum Score of 70 and Quality Score of 92.

Aptiv PLC stock has a Growth Score of 95, Momentum Score of 12 and Quality Score of 93.

Comparing Magna International Inc. and Aptiv PLC’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.