Onterris (ONT) vs Perma-Fix Environmental Services (PESI)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
Perma-Fix Environmental Services (PESI) has outperformed Onterris (ONT) over the past year, gaining 41.5% versus a loss of 52.4%. Over five years, PESI leads with a +104.9% price change compared with -78.1% for ONT. Onterris is the larger company by market cap ($485.0 million vs $292.0 million), about 1.7 times the size.
On valuation, Onterris trades at a lower forward P/E (8.5x vs 152.9x for Perma-Fix Environmental Services).
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 | ONT | PESI |
|---|---|---|
| Share price | $13.81 | $13.76 |
| Market cap | $484.97M | $291.96M |
| 1-day change | +0.73% | -2.82% |
| YTD return | -44.78% | +12.47% |
| 1-year return | -52.36% | +41.46% |
| 5-year return | -78.06% | +104.92% |
| Forward P/E | 8.51 | 152.89 |
| EPS (TTM) | $-0.33 | $-0.96 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $30.90 | $21.32 |
| 52-week low | $12.26 | $8.58 |
| Distance from 52-week high | -55.31% | -35.46% |
| Analyst consensus | buy | strong_buy |
| Avg. price target upside | +34.69% | +118.02% |
| Average volume | 707.45K | 429.74K |
| Shares outstanding | 35.12M | 21.22M |
| Employees | 3,500 | 293 |
| Sector | Consumer Discretionary | Industrials |
| Industry | Professional Services | Environmental Services |
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
- PESI has outperformed ONT by 93.8 percentage points over the past year.
- The two companies sit in different sectors: Onterris in Consumer Discretionary and Perma-Fix Environmental Services in Industrials.
About Onterris
ONT stock →Onterris, Inc. operates as an environmental services company in the United States, Australia, Canada, and internationally.
Consumer Discretionary · Professional Services · 3,500 employees
About Perma-Fix Environmental Services
PESI stock →Perma-Fix Environmental Services, Inc., through its subsidiaries, operates as an environmental and technology know-how company in the United States. The company operates in two segments, Treatment and Services.
Industrials · Environmental Services · 293 employees
ONT vs PESI FAQ
Which is bigger, Onterris or Perma-Fix Environmental Services?
Onterris (ONT) is larger, with a market capitalization of $484.97M compared with $291.96M for Perma-Fix Environmental Services (PESI).
Which stock has performed better over the past year, ONT or PESI?
PESI returned +41.46% over the past 12 months, compared with -52.36% for ONT (price return, excluding dividends). Past performance does not predict future results.
Are Onterris and Perma-Fix Environmental Services in the same industry?
No. Onterris is in the Consumer Discretionary sector, while Perma-Fix Environmental Services is in Industrials.