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 Amkor Technology, Inc., Kulicke and Soffa Industries 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 Amkor Technology, Inc., Kulicke and Soffa Industries and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Amkor Technology, Inc., Kulicke and Soffa Industries and Inc.

Amkor Technology, Inc. provides outsourced semiconductor packaging and test services in the United States, Japan, Europe, and the Asia Pacific. It offers turnkey packaging and test services, including semiconductor wafer bump, wafer probe, wafer back-grind, package design, packaging, burn-in, system-level and final test, and drop shipment services; flip chip scale package products for smartphones, tablets, and other mobile consumer electronic devices; flip chip stacked chip scale packages that are used to stack memory digital baseband, and as applications processors in mobile devices; flip-chip ball grid array packages for various networking, storage, computing, automotive, and consumer applications; and memory products for system memory or platform data storage. The company provides wafer-level CSP packages for power management, transceivers, sensors, wireless charging, codecs, and specialty silicon; wafer-level fan-out packages used in power management, transceivers, radar, and specialty silicon; silicon wafer integrated fan-out technology that replaces a laminate substrate with a thinner structure; leadframe packages for electronic devices and mixed-signal applications; and substrate-based wirebond packages used to connect a die to a substrate. In addition, it offers micro-electro-mechanical systems packages that are miniaturized mechanical and electromechanical devices; and advanced system-in-package modules used in radio frequency and front end modules, basebands, connectivity, fingerprint sensors, display and touch screen drivers, sensors and MEMS, and NAND memory and solid-state drives. Further, the company provides wafer, package, and system level test services, as well as burn-in test and test development services. It serves integrated device manufacturers, fabless semiconductor companies, original equipment manufacturers, and contract foundries. Amkor Technology, Inc. was founded in 1968 and is headquartered in Tempe, Arizona.

Kulicke and Soffa Industries, Inc. designs, manufactures, and sells capital equipment and consumables in China, the United States, Taiwan, Malaysia, Japan, the Philippines, Korea, Hong Kong, and internationally. It operates through four segments: Ball Bonding Equipment, Wedge Bonding Equipment, Advanced Solutions, and Aftermarket Products and Services (APS). The company provides services used to assemble semiconductor devices, such as integrated circuits, power discretes, light-emitting diode (LEDs), and sensors. It also offers ball bonding equipment, wafer level bonding equipment, and wedge and wedge-related bonding equipment; and advanced display, die-attach, and thermocompression systems and solutions, as well as tools, spares, and services for equipment. In addition, the company services, maintains, repairs, and upgrades equipment; and sells consumable aftermarket solutions and services. It serves integrated device manufacturers, outsourced semiconductor assembly and test providers, other electronics manufacturers, foundry service providers, and automotive electronics suppliers primarily in the United States and the Asia/Pacific region. The company was founded in 1951 and is headquartered in Singapore.

Latest Semiconductors & Semiconductor Equipment and Amkor Technology, Inc., Kulicke and Soffa Industries, Inc. Stock News

As of September 2, 2026, Amkor Technology, Inc. had a $11.7 billion market capitalization, compared to the Semiconductors & Semiconductor Equipment median of $4.7 million. Amkor Technology, Inc.’s stock is up 19.1% in 2026, down 9.1% in the previous five trading days and up 97.36% in the past year.

Currently, Amkor Technology, Inc.’s price-earnings ratio is 21.2. Amkor Technology, Inc.’s trailing 12-month revenue is $7.5 billion with a 7.4% net profit margin. Year-over-year quarterly sales growth most recently was 25.6%. Analysts expect adjusted earnings to reach $2.572 per share for the current fiscal year. Amkor Technology, Inc. currently has a 0.7% dividend yield.

As of September 2, 2026, Kulicke and Soffa Industries, Inc. had a $4.1 billion market cap, putting it in the 64th percentile of all stocks. Kulicke and Soffa Industries, Inc.’s stock is up 71.4% in 2026, down 7.8% in the previous five trading days and up 116.18% in the past year.

Currently, Kulicke and Soffa Industries, Inc.’s price-earnings ratio is 36.1. Kulicke and Soffa Industries, Inc.’s trailing 12-month revenue is $950.2 million with a 12.2% net profit margin. Year-over-year quarterly sales growth most recently was 122.6%. Analysts expect adjusted earnings to reach $3.863 per share for the current fiscal year. Kulicke and Soffa Industries, Inc. currently has a 1.0% dividend yield.

How We Compare Amkor Technology, Inc., Kulicke and Soffa Industries 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 Amkor Technology, Inc., Kulicke and Soffa Industries and Inc.’s stock grades to see how they measure up against one another.

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Amkor Technology, Inc., Kulicke and Soffa Industries and Inc. Stock Value Grades

Company	Ticker	Value
Amkor Technology, Inc.	AMKR	C
Kulicke and Soffa Industries, Inc.	KLIC	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.

Amkor Technology, Inc. has a Value Score of 60, which is Average. Kulicke and Soffa Industries, Inc. has a Value Score of 26, which is Expensive.

The Value Stock Winner: No Clear Winner

Neither Amkor Technology, Inc., Kulicke and Soffa Industries 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 Amkor Technology, Inc., Kulicke and Soffa Industries or Inc. is the better investment when it comes to value.

Amkor Technology, Inc., Kulicke and Soffa Industries and Inc.’s Momentum Grades

Company	Ticker	Momentum
Amkor Technology, Inc.	AMKR	B
Kulicke and Soffa Industries, Inc.	KLIC	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%.

Amkor Technology, Inc. has a Momentum Score of 80, which is Strong. Kulicke and Soffa Industries, Inc. has a Momentum Score of 83, which is Very Strong.

The Momentum Grade Winner: Kulicke and Soffa Industries, Inc.

As you can clearly see from the Momentum Grade breakdown above, Kulicke and Soffa Industries, Inc. is considered to have stronger momentum compared to Amkor Technology, Inc.. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Kulicke and Soffa Industries, 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.

Amkor Technology, Inc., Kulicke and Soffa Industries and Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Amkor Technology, Inc.	AMKR	B
Kulicke and Soffa Industries, Inc.	KLIC	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.

Amkor Technology, Inc. has a Earnings Estimate Score of 77, which is Positive. Kulicke and Soffa Industries, Inc. has a Earnings Estimate Score of 91, which is Very Positive.

The Earnings Estimate Revisions Grade Winner: Kulicke and Soffa Industries, Inc.

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

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

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.

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 Amkor Technology, Inc., Kulicke and Soffa Industries and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Amkor Technology, Inc., Kulicke and Soffa Industries or Inc. Stock?

Overall, Amkor Technology, Inc. stock has a Value Score of 60, Momentum Score of 80 and Estimate Revisions Score of 77.

Kulicke and Soffa Industries, Inc. stock has a Value Score of 26, Momentum Score of 83 and Estimate Revisions Score of 91.

Comparing Amkor Technology, Inc., Kulicke and Soffa Industries 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.