Amplitude (AMPL) vs PDF Solutions (PDFS)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
PDF Solutions (PDFS) has outperformed Amplitude (AMPL) over the past year, gaining 100.1% versus a gain of 48.4%. Over five years, PDFS leads with a +131.7% price change compared with -72.7% for AMPL. PDF Solutions is the larger company by market cap ($2.20 billion vs $2.03 billion), about 1.1 times the size.
On valuation, PDF Solutions trades at a lower forward P/E (31.6x vs 88.5x for Amplitude).
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | AMPL | PDFS |
|---|---|---|
| Share price | $15.29 | $52.18 |
| Market cap | $2.03B | $2.20B |
| 1-day change | +3.59% | -1.86% |
| YTD return | +32.04% | +82.90% |
| 1-year return | +48.45% | +100.08% |
| 5-year return | -72.71% | +131.68% |
| P/E ratio (TTM) | — | 208.72 |
| Forward P/E | 88.47 | 31.58 |
| EPS (TTM) | $-0.75 | $0.25 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $15.30 | $71.69 |
| 52-week low | $5.51 | $23.55 |
| Distance from 52-week high | -0.07% | -27.21% |
| Analyst consensus | buy | strong_buy |
| Avg. price target upside | -4.84% | +17.86% |
| Average volume | 1.92M | 561.64K |
| Shares outstanding | 103.87M | 42.23M |
| Employees | 795 | 600 |
| Sector | Technology | Technology |
| Industry | Computer Software: Prepackaged Software | Computer Software: Prepackaged Software |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- PDFS has outperformed AMPL by 51.6 percentage points over the past year.
About Amplitude
AMPL stock →Amplitude, Inc., together with its subsidiaries, provides an AI analytics platform that helps analyze customer behavior within digital products in the United States and internationally. It offers Amplitude Analytics, which provides real-time insights into user behavior; Amplitude Session Replay, a tool that offers a qualitative perspective by reconstructing user journeys; Amplitude Feature Experimentation, which enables product, data, and engineering teams to build experiments; Amplitude Web Experimentation, a solution that reduces the need for engineering support and accelerates testing; Amplitude Activation, which resolves identity conflicts, streamlines data integration, and facilitates organizations to personalize and activate campaigns and experiences; Amplitude Guides and Surveys that helps companies to deploy in-product guides, tours, and surveys using the power of behavioral insights to fuel great results; Amplitude AI Agents, accomplish specific goals, such as increasing checkout conversions or feature adoption; Amplitude MCP, is a server enables teams to analyze product data, experiments, and user behavior using conversational AI; Amplitude AI Visibility gives marketers unprecedented insights into how their brand show up; Amplitude AI Feedback, is a feedback engine that uses proprietary large language models to convert raw user input into actionable insights; and Amplitude Automated Insights, is a replicates standard analysis process, executes chained tool calls, and it searches charts and reports to investigate experiments, campaigns, and product releases.
Technology · Computer Software: Prepackaged Software · 795 employees
About PDF Solutions
PDFS stock →PDF Solutions, Inc. provides proprietary software, physical intellectual property for integrated circuit designs, electrical measurement hardware tools, proven methodologies, and professional services in the United States, Japan, China, and internationally.
Technology · Computer Software: Prepackaged Software · 600 employees
AMPL vs PDFS FAQ
Which is bigger, Amplitude or PDF Solutions?
PDF Solutions (PDFS) is larger, with a market capitalization of $2.20B compared with $2.03B for Amplitude (AMPL).
Which stock has performed better over the past year, AMPL or PDFS?
PDFS returned +100.08% over the past 12 months, compared with +48.45% for AMPL (price return, excluding dividends). Past performance does not predict future results.
Are Amplitude and PDF Solutions in the same industry?
Yes. Both are classified in the Computer Software: Prepackaged Software industry within the Technology sector.