Which Is a Better Investment, Infineon Technologies AG (ADR) or STMicroelectronics NV (ADR) Stock?

By Jenna Brashear
April 01, 2026
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Sifting through countless of stocks in the Semiconductors & Semiconductor Equipment 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 Infineon Technologies AG, Infineon Technologies AG or STMicroelectronics N.V. 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 Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. compare based on key financial metrics to determine which better meets your investment needs.

About Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V.

Infineon Technologies AG develops, manufactures, and markets semiconductors and semiconductor-based solutions in Germany, Europe, the Middle East, Africa, Mainland China, Hong Kong, Taiwan, the Asia-Pacific, Japan, the United States, and the Americas. The Automotive segment offers automotive and industrial microcontrollers; analog and memory ICs; ethernet; power diodes and modules; power switches; sensors; transceivers; and voltage regulators for assistance and safety systems, comfort electronics, infotainment, powertrain, and security applications. Its Green Industrial Power segment provides discrete and bare die IGBTs; IGBT modules; and SiC discretes and modules for air conditioning technology, energy generation and storage, energy transmission, home appliances, industrial drives, industrial power supplies and vehicles, and traction applications. The Power & Sensor Systems segment offers 3D ToF sensors; chips for gas and pressure sensors, and MEMS microphones; control ICs; customized chips; discrete low-, mid-, and high-voltage power MOSFETs; ESD protection diodes; GaN power switches; GPS low-noise amplifiers; low- and high-voltage driver ICs; radar sensor ICs; RF antenna switches and power transistors; SiC diode and MOSFETs; and USB controllers for audio amplifiers, automotive electronics, BLDC motors, cellular communications infrastructure, charging stations for electric vehicles, human machine interaction, IoT, LED and conventional lighting systems, microinverters, mobile devices, power management, and harsh environment applications. Its Connected Secure Systems segment provides connectivity solutions, embedded security controllers, microcontrollers, and security controllers for authentication, automotive, consumer electronics, government identification document, IoT, mobile communication, payment system, ticketing, access control, and trusted computing applications. Infineon Technologies AG was founded in 1952 and is headquartered in Neubiberg, Germany.

Infineon Technologies AG develops, manufactures, and markets semiconductors and semiconductor-based solutions in Germany, Europe, the Middle East, Africa, Mainland China, Hong Kong, Taiwan, the Asia-Pacific, Japan, the United States, and the Americas. The Automotive segment offers automotive and industrial microcontrollers; analog and memory ICs; ethernet; power diodes and modules; power switches; sensors; transceivers; and voltage regulators for assistance and safety systems, comfort electronics, infotainment, powertrain, and security applications. Its Green Industrial Power segment provides discrete and bare die IGBTs; IGBT modules; and SiC discretes and modules for air conditioning technology, energy generation and storage, energy transmission, home appliances, industrial drives, industrial power supplies and vehicles, and traction applications. The Power & Sensor Systems segment offers 3D ToF sensors; chips for gas and pressure sensors, and MEMS microphones; control ICs; customized chips; discrete low-, mid-, and high-voltage power MOSFETs; ESD protection diodes; GaN power switches; GPS low-noise amplifiers; low- and high-voltage driver ICs; radar sensor ICs; RF antenna switches and power transistors; SiC diode and MOSFETs; and USB controllers for audio amplifiers, automotive electronics, BLDC motors, cellular communications infrastructure, charging stations for electric vehicles, human machine interaction, IoT, LED and conventional lighting systems, microinverters, mobile devices, power management, and harsh environment applications. Its Connected Secure Systems segment provides connectivity solutions, embedded security controllers, microcontrollers, and security controllers for authentication, automotive, consumer electronics, government identification document, IoT, mobile communication, payment system, ticketing, access control, and trusted computing applications. Infineon Technologies AG was founded in 1952 and is headquartered in Neubiberg, Germany.

STMicroelectronics N.V., together with its subsidiaries, designs, develops, manufactures, and sells semiconductor products in Europe, the Middle East, Africa, the Americas, and the Asia Pacific. The company operates through Analog products, MEMS and Sensors Group (AM&S); Power and Discrete products (P&D); Embedded Processing (“EMP”); and RF Products (D&RF) segments. It offers industrial application-specific integrated circuits (ASICs) and application-specific standard products (ASSPs); power management solutions; custom analog ICs, wireless charging solutions; galvanic isolated gate and LED drivers; converters, transistors, intelligent power switches, clocks and timers, comparators, and current-sense amplifiers; micro-electro-mechanical systems (MEMS) sensors, including accelerometers, gyroscopes, magnetic sensors, pressure, temperature, presence detection, biosensors, machine learning, and edge AI processing smart sensors, as well as thermal and piezoelectric actuators; and optical sensing solutions. The company also provides silicon MOSFETs, SiC MOSFETs, IGBTs, thyristors, rectifiers, and power modules and bipolar transistors; microcontrollers, and automotive microcontrollers and secured; radio frequency (RF) communications and ASICs; car infotainment products; ultra-wide band and radar systems; and Connected Security Products; and automotive driver assistance systems. It serves automotive, industrial, personal electronics and communications equipment, and computers and peripherals markets. STMicroelectronics N.V. was incorporated in 1987 and is headquartered in Schiphol, the Netherlands.

Latest Semiconductors & Semiconductor Equipment and Infineon Technologies AG, Infineon Technologies AG Stock News

As of March 31, 2026, Infineon Technologies AG had a $56.9 billion market capitalization, compared to the Semiconductors & Semiconductor Equipment median of $3.1 million. Infineon Technologies AG’s stock is NA in 2026, NA in the previous five trading days and up 34% in the past year.

Currently, Infineon Technologies AG does not have a price-earnings ratio. Infineon Technologies AG’s trailing 12-month revenue is $17.5 billion with a 6.9% net profit margin. As of March 31, 2026, Infineon Technologies AG has not reported significant year-over-year quarterly sales. Analysts expect adjusted earnings to reach $1.901 per share for the current fiscal year. Infineon Technologies AG does not currently pay a dividend.

Currently, Infineon Technologies AG does not have a price-earnings ratio. Infineon Technologies AG’s trailing 12-month revenue is $17.5 billion with a 6.9% net profit margin. As of March 31, 2026, Infineon Technologies AG has not reported significant year-over-year quarterly sales. Analysts expect adjusted earnings to reach $1.901 per share for the current fiscal year. Infineon Technologies AG does not currently pay a dividend.

How We Compare Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. 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 Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V.’s stock grades to see how they measure up against one another.

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Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. Stock Value Grades

Company Ticker Value
Infineon Technologies AG IFNNY na
Infineon Technologies AG IFNNY na
STMicroelectronics N.V. STM D

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.

Infineon Technologies AG does not have a meaningful Value Score. Infineon Technologies AG does not have a meaningful Value Score. STMicroelectronics N.V. has a Value Score of 38, which is Expensive.

The Value Stock Winner: No Clear Winner

Neither Infineon Technologies AG, Infineon Technologies AG or STMicroelectronics N.V. 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 Infineon Technologies AG, Infineon Technologies AG or STMicroelectronics N.V. is the better investment when it comes to value.

Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. Growth Grades

Company Ticker Growth
Infineon Technologies AG IFNNY A
Infineon Technologies AG IFNNY A
STMicroelectronics N.V. STM C

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.

Infineon Technologies AG has a Growth Score of 83, which is Very Strong. Infineon Technologies AG has a Growth Score of 83, which is Very Strong. STMicroelectronics N.V. has a Growth Score of 56, which is Average.

The Growth Grade Winner: It’s a Tie!

Looking at the Growth Grade breakdown above, both Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. 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.

Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V.’s Momentum Grades

Company Ticker Momentum
Infineon Technologies AG IFNNY B
Infineon Technologies AG IFNNY B
STMicroelectronics N.V. STM 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%.

Infineon Technologies AG has a Momentum Score of 65, which is Strong. Infineon Technologies AG has a Momentum Score of 65, which is Strong. STMicroelectronics N.V. has a Momentum Score of 84, which is Very Strong.

The Momentum Grade Winner: It’s a Tie!

Looking at the Momentum Grade breakdown above, both Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. have a grade of B. For those who focus solely on a company’s momentum, further research will need to be conducted into both companies to see if they fit your individual needs as an investor.

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Other Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. Grades

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

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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).

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 Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Infineon Technologies AG, Infineon Technologies AG or STMicroelectronics N.V. Stock?

Overall, Infineon Technologies AG stock has a Value Score of , Growth Score of 83 and Momentum Score of 65.

Infineon Technologies AG stock has a Value Score of , Growth Score of 83 and Momentum Score of 65.

STMicroelectronics N.V. stock has a Value Score of 38, Growth Score of 56 and Momentum Score of 84.

Comparing Infineon Technologies AG, Infineon Technologies AG and STMicroelectronics N.V.’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.

Learn More About A+ Investor

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.



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