Contrasting PDF Solutions (NASDAQ:PDFS) and Amkor Technology (AMKR)

Amkor Technology (NASDAQ: AMKR) and PDF Solutions (NASDAQ:PDFS) are both computer and technology companies, but which is the superior business? We will compare the two businesses based on the strength of their profitability, analyst recommendations, dividends, risk, earnings, valuation and institutional ownership.

Analyst Ratings

This is a breakdown of recent ratings and target prices for Amkor Technology and PDF Solutions, as provided by

Sell Ratings Hold Ratings Buy Ratings Strong Buy Ratings Rating Score
Amkor Technology 0 1 0 0 2.00
PDF Solutions 0 2 1 0 2.33

Amkor Technology presently has a consensus target price of $10.50, suggesting a potential upside of 24.11%. PDF Solutions has a consensus target price of $23.33, suggesting a potential upside of 54.12%. Given PDF Solutions’ stronger consensus rating and higher probable upside, analysts clearly believe PDF Solutions is more favorable than Amkor Technology.

Valuation & Earnings

This table compares Amkor Technology and PDF Solutions’ revenue, earnings per share (EPS) and valuation.

Gross Revenue Price/Sales Ratio EBITDA Earnings Per Share Price/Earnings Ratio
Amkor Technology $4.01 billion 0.50 $866.26 million $1.11 7.62
PDF Solutions $104.27 million 4.69 $9.44 million $0.18 84.11

Amkor Technology has higher revenue and earnings than PDF Solutions. Amkor Technology is trading at a lower price-to-earnings ratio than PDF Solutions, indicating that it is currently the more affordable of the two stocks.

Risk and Volatility

Amkor Technology has a beta of 2.52, meaning that its stock price is 152% more volatile than the S&P 500. Comparatively, PDF Solutions has a beta of 1.49, meaning that its stock price is 49% more volatile than the S&P 500.

Insider & Institutional Ownership

38.8% of Amkor Technology shares are held by institutional investors. Comparatively, 78.0% of PDF Solutions shares are held by institutional investors. 58.1% of Amkor Technology shares are held by company insiders. Comparatively, 16.2% of PDF Solutions shares are held by company insiders. Strong institutional ownership is an indication that large money managers, hedge funds and endowments believe a company will outperform the market over the long term.


This table compares Amkor Technology and PDF Solutions’ net margins, return on equity and return on assets.

Net Margins Return on Equity Return on Assets
Amkor Technology 6.63% 12.95% 4.35%
PDF Solutions 5.29% 2.78% 2.49%


Amkor Technology beats PDF Solutions on 8 of the 14 factors compared between the two stocks.

Amkor Technology Company Profile

Amkor Technology, Inc. is a provider of outsourced semiconductor packaging and test services. The Company’s packaging and test services are designed to meet application and chip specific requirements, including the type of interconnect technology; size, thickness and electrical, and mechanical and thermal performance. It provides packaging and test services, including semiconductor wafer bump, wafer probe, wafer backgrind, package design, packaging, system-level, and final test and drop shipment services. The Company provides its services to integrated device manufacturers (IDMs), fabless semiconductor companies and contract foundries. IDMs design, manufacture, package and test semiconductors in their own facilities. The Company offers a range of advanced and mainstream packaging and test services. The Company’s mainstream packages include leadframe packages, substrate-based wirebond packages and micro-electro-mechanical systems packages.

PDF Solutions Company Profile

PDF Solutions, Inc. is a provider of infrastructure technologies and services for integrated circuits (IC). The Company’s technologies and services focus on the IC manufacturing process life cycle. It operates in the segment of licensing and implementation of yield improvement solutions for integrated circuit manufacturers. The Company’s solutions combine software, test chips, an electrical wafer test system, methodologies and professional services. The Company has developed solutions for yield simulation, analysis, loss detection, and improvement. Its characterization vehicle infrastructure (CVi) enables customers to electrically characterize the manufacturing process, and establish fail-rate information needed to calibrate manufacturing yield models and prioritize yield improvement activities. Its Exensio YieldAware solution combines software and services to enable customers to collect and combine product test data and equipment signals during production.

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