Amprius Technologies (AMPX) vs Ballard Power Systems (BLDP)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Amprius Technologies (AMPX) has outperformed Ballard Power Systems (BLDP) over the past year, losing 26.4% versus a loss of 44.9%. Amprius Technologies is the larger company by market cap ($1.37 billion vs $691.6 million), about 2.0 times the size.
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 | AMPX | BLDP |
|---|---|---|
| Share price | $9.41 | $1.97 |
| Market cap | $1.37B | $691.61M |
| 1-day change | +0.86% | -1.50% |
| YTD return | +18.25% | -21.26% |
| 1-year return | -26.36% | -44.90% |
| 5-year return | — | -87.32% |
| Forward P/E | 94.10 | — |
| EPS (TTM) | $-0.29 | $-0.26 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $24.23 | $6.57 |
| 52-week low | $7.71 | $1.92 |
| Distance from 52-week high | -61.16% | -70.02% |
| Analyst consensus | strong_buy | hold |
| Avg. price target upside | +144.42% | +85.29% |
| Average volume | 5.53M | 3.92M |
| Shares outstanding | 146.08M | 351.09M |
| Employees | 97 | 492 |
| Sector | Miscellaneous | Energy |
| Industry | Industrial Machinery/Components | Industrial Machinery/Components |
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
- AMPX has outperformed BLDP by 18.5 percentage points over the past year.
- The two companies sit in different sectors: Amprius Technologies in Miscellaneous and Ballard Power Systems in Energy.
About Amprius Technologies
AMPX stock →Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications.
Miscellaneous · Industrial Machinery/Components · 97 employees
About Ballard Power Systems
BLDP stock →Ballard Power Systems Inc. engages in the design, development, manufacture, sale, and service of proton exchange membrane (PEM) fuel cell products.
Energy · Industrial Machinery/Components · 492 employees
AMPX vs BLDP FAQ
Which is bigger, Amprius Technologies or Ballard Power Systems?
Amprius Technologies (AMPX) is larger, with a market capitalization of $1.37B compared with $691.61M for Ballard Power Systems (BLDP).
Which stock has performed better over the past year, AMPX or BLDP?
AMPX returned -26.36% over the past 12 months, compared with -44.90% for BLDP (price return, excluding dividends). Past performance does not predict future results.
Are Amprius Technologies and Ballard Power Systems in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Miscellaneous sector.