American Superconductor Corporation (AMSC) vs Napco Security Technologies, Inc. (NSSC)
A side-by-side comparison of American Superconductor Corporation and Napco Security Technologies, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.
AMSC
American Superconductor Corporation
$31.72IndustrialsDelayed quote: Oct 6, 2026, 3:05 PM EDT
NSSC
Napco Security Technologies, Inc.
$36.50IndustrialsDelayed quote: Oct 6, 2026, 3:05 PM EDT
Total return — AMSC vs NSSC
growth of $100 · dividends reinvested · last 10yAMSC +343.5% (+16.1%/yr)NSSC +981.9% (+26.9%/yr)NSSC compounded faster over this window
AMSC NSSC
AMSC vs NSSC: by the numbers
- •AMSC is the larger company ($1.54B vs $1.30B market cap).
- •AMSC trades at the lower trailing earnings multiple (10.48 vs 30.41 P/E), one valuation lens rather than an overall verdict.
- •AMSC converts more revenue to profit (42.56% vs 21.27% net margin).
- •AMSC grew revenue faster over the past five years (28.57% vs 12.15% CAGR).
- •NSSC pays a dividend (1.68% yield), while AMSC has no payments in the available dividend history.
Metrics side by side
Valuation
| Metric | AMSC | NSSC |
|---|---|---|
| P/E ratio | 10.48 | 30.41 |
| Forward P/E | 36.13 | 22.19 |
| PEG ratio | N/A | 1.71 |
| P/S ratio | 4.79 | 6.44 |
| P/B ratio | 2.69 | 6.83 |
| EV / EBITDA | 48.13 | 24.71 |
| FCF yield | 1.34% | 4.54% |
Profitability
| Metric | AMSC | NSSC |
|---|---|---|
| Gross margin | 28.18% | 59.21% |
| Operating margin | 6.16% | 22.56% |
| Net margin | 42.56% | 21.27% |
| ROE | 23.86% | 22.53% |
| ROIC | 3.18% | 20.09% |
Dividends
| Metric | AMSC | NSSC |
|---|---|---|
| Dividend yield | N/A | 1.68% |
| Payout ratio | N/A | 50.83% |
Growth (annualized)
| Metric | AMSC | NSSC |
|---|---|---|
| Revenue CAGR (5Y) | 28.57% | 12.15% |
| EPS CAGR (5Y) | N/A | 17.95% |
| FCF CAGR (5Y) | N/A | 21.93% |
| Total return CAGR (5Y) | 16.27% | 11.73% |
Frequently asked
- Which has the lower trailing P/E, AMSC or NSSC?
- AMSC has the lower trailing P/E: AMSC trades at 10.48 and NSSC at 30.41. P/E is one valuation measure and does not by itself establish which business is cheaper.
- Which has grown faster, AMSC or NSSC?
- Over the past five years, AMSC grew revenue faster — AMSC at a 28.57% CAGR versus NSSC at 12.15%.
- Does AMSC or NSSC pay a bigger dividend?
- NSSC pays a dividend (1.68% yield), while AMSC has no payments in the available dividend history.
- Is AMSC or NSSC more profitable?
- AMSC runs the higher net margin — AMSC at 42.56% versus NSSC at 21.27%.
- How have AMSC and NSSC total returns compared?
- Over the past 10 years, AMSC delivered 15.50% and NSSC delivered 26.82% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
American Superconductor P/E ratioNapco Security Technologies P/E ratioNapco Security Technologies dividend yieldAmerican Superconductor ROENapco Security Technologies ROEAmerican Superconductor operating marginNapco Security Technologies operating marginAmerican Superconductor revenue growthNapco Security Technologies revenue growthAmerican Superconductor free cash flowNapco Security Technologies free cash flow
American Superconductor & Napco Security Technologies appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.