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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 ON Semiconductor Corporation, Amkor Technology 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 ON Semiconductor Corporation, Amkor Technology and Inc. compare based on key financial metrics to determine which better meets your investment needs.
About ON Semiconductor Corporation, Amkor Technology and Inc.
ON Semiconductor Corporation provides intelligent sensing and power solutions in Hong Kong, Singapore, the United Kingdom, the United States, and internationally. The company operates through three segments Power Solutions Group, Analog and Mixed-Signal Group, and Intelligent Sensing Group. The Power Solutions Group segment offers discrete, module and integrated semiconductor products that perform multiple application functions, including power switching, signal conditioning, and circuit protection. The Analog and Mixed-Signal Group segment designs and develops analogues, mixed-signal, power management ICs, sensor interface devices, power conversion, signal chain, and voltage regulation devices for end-users in the automotive, industrial, computing and mobile end-markets. The Intelligent Sensing Group segment designs and develops complementary metal oxide semiconductor image sensors, image signal processors, single photon detectors, including silicon photomultipliers, single photon avalanche diode arrays, and short-wavelength infrared products, as well as actuator drivers for autofocus and image stabilization for a broad base of end-users in the different end-markets. ON Semiconductor Corporation was incorporated in 1992 and is headquartered in Scottsdale, Arizona.
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, 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, radar, 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.
Latest Semiconductors & Semiconductor Equipment and ON Semiconductor Corporation, Amkor Technology, Inc. Stock News
As of December 5, 2025, ON Semiconductor Corporation had a $22.0 billion market capitalization, compared to the Semiconductors & Semiconductor Equipment median of $2.7 million. ON Semiconductor Corporation’s stock is down 13.2% in 2025, up 9% in the previous five trading days and down 21.59% in the past year.
Currently, ON Semiconductor Corporation’s price-earnings ratio is 72.5. ON Semiconductor Corporation’s trailing 12-month revenue is $6.2 billion with a 5.2% net profit margin. Year-over-year quarterly sales growth most recently was -12.0%. Analysts expect adjusted earnings to reach $2.331 per share for the current fiscal year. ON Semiconductor Corporation does not currently pay a dividend.
As of December 5, 2025, Amkor Technology, Inc. had a $10.7 billion market cap, putting it in the 79th percentile of all stocks. Amkor Technology, Inc.’s stock is up 68.3% in 2025, up 18.8% in the previous five trading days and up 60.23% in the past year.
Currently, Amkor Technology, Inc.’s price-earnings ratio is 34.9. Amkor Technology, Inc.’s trailing 12-month revenue is $6.4 billion with a 4.8% net profit margin. Year-over-year quarterly sales growth most recently was 6.7%. Analysts expect adjusted earnings to reach $1.254 per share for the current fiscal year. Amkor Technology, Inc. currently has a 0.8% dividend yield.
How We Compare ON Semiconductor Corporation, Amkor Technology and Inc. Stock Grades
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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 ON Semiconductor Corporation, Amkor Technology and Inc.’s stock grades to see how they measure up against one another.
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