Acorn Energy (ACFN) vs Momentus (MNTS)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Acorn Energy (ACFN) has outperformed Momentus (MNTS) over the past year, losing 30.5% versus a loss of 88.9%. Over five years, ACFN leads with a +88.6% price change compared with -100.0% for MNTS. Momentus is the larger company by market cap ($74.2 million vs $48.2 million), about 1.5 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 | ACFN | MNTS |
|---|---|---|
| Share price | $19.01 | $3.38 |
| Market cap | $48.18M | $74.24M |
| 1-day change | +1.66% | -3.43% |
| YTD return | +25.89% | -30.60% |
| 1-year return | -30.47% | -88.87% |
| 5-year return | +88.59% | -100.00% |
| P/E ratio (TTM) | 31.16 | — |
| EPS (TTM) | $0.61 | $-4.86 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $27.50 | $34.46 |
| 52-week low | $12.42 | $3.11 |
| Distance from 52-week high | -30.87% | -90.19% |
| Analyst consensus | — | none |
| Avg. price target upside | — | +136.69% |
| Average volume | 49.31K | 887.44K |
| Shares outstanding | 2.53M | 21.96M |
| Employees | 26 | 35 |
| Sector | Technology | Industrials |
| Industry | Scientific & Technical Instruments | Aerospace & Defense |
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
- ACFN has outperformed MNTS by 58.4 percentage points over the past year.
- The two companies sit in different sectors: Acorn Energy in Technology and Momentus in Industrials.
About Acorn Energy
ACFN stock →Acorn Energy, Inc., through its subsidiary, develops and markets wireless remote monitoring and control systems in the United States and internationally. It operates through two segments: Power Generation (PG) and Cathodic Protection (CP).
Technology · Scientific & Technical Instruments · 26 employees
About Momentus
MNTS stock →Momentus Inc. operates as a commercial space company in the United States.
Industrials · Aerospace & Defense · 35 employees
ACFN vs MNTS FAQ
Which is bigger, Acorn Energy or Momentus?
Momentus (MNTS) is larger, with a market capitalization of $74.24M compared with $48.18M for Acorn Energy (ACFN).
Which stock has performed better over the past year, ACFN or MNTS?
ACFN returned -30.47% over the past 12 months, compared with -88.87% for MNTS (price return, excluding dividends). Past performance does not predict future results.
Are Acorn Energy and Momentus in the same industry?
No. Acorn Energy is in the Technology sector, while Momentus is in Industrials.