American Superconductor (AMSC) vs Power Solutions International (PSIX)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Power Solutions International (PSIX) has outperformed American Superconductor (AMSC) over the past year, losing 38.8% versus a loss of 43.9%. Over five years, PSIX leads with a +1190.8% price change compared with +89.5% for AMSC. American Superconductor is the larger company by market cap ($1.52 billion vs $1.15 billion), about 1.3 times the size.
On valuation, Power Solutions International trades at a lower forward P/E (15.3x vs 23.2x for American Superconductor).
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 | AMSC | PSIX |
|---|---|---|
| Share price | $31.40 | $49.73 |
| Market cap | $1.52B | $1.15B |
| 1-day change | -1.07% | -3.68% |
| YTD return | +10.28% | -9.64% |
| 1-year return | -43.87% | -38.80% |
| 5-year return | +89.49% | +1190.75% |
| P/E ratio (TTM) | 10.57 | 16.91 |
| Forward P/E | 23.17 | 15.25 |
| EPS (TTM) | $2.97 | $2.94 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $70.49 | $106.50 |
| 52-week low | $24.87 | $25.28 |
| Distance from 52-week high | -55.45% | -53.31% |
| Analyst consensus | strong_buy | none |
| Avg. price target upside | +96.66% | +40.34% |
| Average volume | 716.09K | 434.72K |
| Shares outstanding | 48.44M | 23.07M |
| Employees | 1,195 | 1,000 |
| Sector | Consumer Discretionary | Industrials |
| Industry | Metal Fabrications | 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
- Power Solutions International trades at a higher earnings multiple (16.9x vs 10.6x trailing P/E).
- The two companies sit in different sectors: American Superconductor in Consumer Discretionary and Power Solutions International in Industrials.
About American Superconductor
AMSC stock →American Superconductor Corporation, together with its subsidiaries, provides megawatt-scale power resiliency solutions worldwide. The company operates through two segments: Grid and Wind segments.
Consumer Discretionary · Metal Fabrications · 1,195 employees
About Power Solutions International
PSIX stock →Power Solutions International, Inc. designs, engineers, manufactures, markets, and sells engines and power systems in the United States, the rest of North America, the Pacific Rim, Europe, and internationally.
Industrials · Industrial Machinery/Components · 1,000 employees
AMSC vs PSIX FAQ
Which is bigger, American Superconductor or Power Solutions International?
American Superconductor (AMSC) is larger, with a market capitalization of $1.52B compared with $1.15B for Power Solutions International (PSIX).
Which stock has performed better over the past year, AMSC or PSIX?
PSIX returned -38.80% over the past 12 months, compared with -43.87% for AMSC (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, AMSC or PSIX?
AMSC has the lower trailing P/E at 10.6, versus 16.9 for PSIX. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Are American Superconductor and Power Solutions International in the same industry?
No. American Superconductor is in the Consumer Discretionary sector, while Power Solutions International is in Industrials.