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 STMicroelectronics N.V., Teradyne or 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 STMicroelectronics N.V., Teradyne and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About STMicroelectronics N.V., Teradyne and Inc.

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.

Teradyne, Inc. engages in the design, development, manufacture, and sale of automated test systems and robotics products in the United States, Asia Pacific, Europe, the Middle East, and Africa. The company operates through Semiconductor Test, Robotics, and Other segments. The Semiconductor Test segment offers products and services for wafer level and device package testing, and system level testing of semiconductor devices in automotive, industrial, communications, consumer, smartphones, cloud, computer and electronic game, and other applications. This segment also provides FLEX test platform systems; J750 test system to address the volume semiconductor devices, including microcontrollers; Magnum platform that tests memory devices, such as flash memory and DRAM; and ETS platform for semiconductor manufacturers, and assembly and test subcontractors in the analog/mixed signal markets. It serves integrated device manufacturers that integrate the fabrication of silicon wafers into their business; fabless companies that outsource the manufacturing of silicon wafers; foundries; and semiconductor assembly and test providers. The Robotics segment provides collaborative robotic arms and autonomous mobile robots for manufacturing, logistics, and industrial customers. It also provides product test instruments which includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace test, circuit-board test, wireless test systems, and silicon photonics testing. Teradyne, Inc. was incorporated in 1960 and is headquartered in North Reading, Massachusetts.

Latest Semiconductors & Semiconductor Equipment and STMicroelectronics N.V., Teradyne, Inc. Stock News

As of May 13, 2026, STMicroelectronics N.V. had a $54.6 billion market capitalization, compared to the Semiconductors & Semiconductor Equipment median of $5.0 million. STMicroelectronics N.V.’s stock is up 148.2% in 2026, up 15.2% in the previous five trading days and up 149.37% in the past year.

Currently, STMicroelectronics N.V.’s price-earnings ratio is 393.7. STMicroelectronics N.V.’s trailing 12-month revenue is $12.4 billion with a 1.2% net profit margin. Year-over-year quarterly sales growth most recently was 23.0%. Analysts expect adjusted earnings to reach $1.203 per share for the current fiscal year. STMicroelectronics N.V. does not currently pay a dividend.

As of May 13, 2026, Teradyne, Inc. had a $56.9 billion market cap, putting it in the 94th percentile of all stocks. Teradyne, Inc.’s stock is up 84.2% in 2026, up 0.7% in the previous five trading days and up 337.5% in the past year.

Currently, Teradyne, Inc.’s price-earnings ratio is 67.5. Teradyne, Inc.’s trailing 12-month revenue is $3.8 billion with a 22.6% net profit margin. Year-over-year quarterly sales growth most recently was 87.0%. Analysts expect adjusted earnings to reach $7.179 per share for the current fiscal year. Teradyne, Inc. currently has a 0.1% dividend yield.

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

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STMicroelectronics N.V., Teradyne and Inc. Stock Value Grades

Company	Ticker	Value
STMicroelectronics N.V.	STM	D
Teradyne, Inc.	TER	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.

STMicroelectronics N.V. has a Value Score of 21, which is Expensive. Teradyne, Inc. has a Value Score of 8, which is Ultra Expensive.

The Value Stock Winner: No Clear Winner

Neither STMicroelectronics N.V., Teradyne or 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 STMicroelectronics N.V., Teradyne or Inc. is the better investment when it comes to value.

STMicroelectronics N.V., Teradyne and Inc. Growth Grades

Company	Ticker	Growth
STMicroelectronics N.V.	STM	C
Teradyne, Inc.	TER	D

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.

STMicroelectronics N.V. has a Growth Score of 57, which is Average. Teradyne, Inc. has a Growth Score of 36, which is Weak.

The Growth Stock Winner: No Clear Winner

Neither STMicroelectronics N.V., Teradyne or Inc. has a high enough Growth 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 portfolios. It’s important to look at a wide range of financial metrics in order to determine if STMicroelectronics N.V., Teradyne or Inc. is the better investment when it comes to sustainable growth.

STMicroelectronics N.V., Teradyne and Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
STMicroelectronics N.V.	STM	D
Teradyne, Inc.	TER	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.

STMicroelectronics N.V. has a Earnings Estimate Score of 34, which is Negative. Teradyne, Inc. has a Earnings Estimate Score of 87, which is Very Positive.

The Earnings Estimate Revisions Grade Winner: Teradyne, Inc.

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

In addition to Value, Estimate Revisions 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 STMicroelectronics N.V., Teradyne and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, STMicroelectronics N.V., Teradyne or Inc. Stock?

Overall, STMicroelectronics N.V. stock has a Value Score of 21, Growth Score of 57 and Estimate Revisions Score of 34.

Teradyne, Inc. stock has a Value Score of 8, Growth Score of 36 and Estimate Revisions Score of 87.

Comparing STMicroelectronics N.V., Teradyne and 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.