Casella Waste Systems (CWST) 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 Casella Waste Systems (CWST) over the past year, gaining 41.5% versus a loss of 6.3%. Over five years, PESI leads with a +104.9% price change compared with +4.7% for CWST. Casella Waste Systems is the larger company by market cap ($5.33 billion vs $292.0 million), about 18.3 times the size.
On valuation, Casella Waste Systems trades at a lower forward P/E (58.3x 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 | CWST | PESI |
|---|---|---|
| Share price | $83.78 | $13.76 |
| Market cap | $5.33B | $291.96M |
| 1-day change | -0.32% | -2.82% |
| YTD return | -14.46% | +12.47% |
| 1-year return | -6.30% | +41.46% |
| 5-year return | +4.73% | +104.92% |
| P/E ratio (TTM) | 930.89 | — |
| Forward P/E | 58.34 | 152.89 |
| EPS (TTM) | $0.09 | $-0.96 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $1.84B | — |
| Revenue growth (YoY) | +17.95% | — |
| Net income (latest FY) | $7.87M | — |
| Gross margin | 33.77% | — |
| Operating margin | 3.47% | — |
| Net margin | 0.43% | — |
| 52-week high | $107.96 | $21.32 |
| 52-week low | $74.05 | $8.58 |
| Distance from 52-week high | -22.40% | -35.46% |
| Analyst consensus | buy | strong_buy |
| Avg. price target upside | +32.49% | +118.02% |
| Average volume | 565.54K | 433.42K |
| Shares outstanding | 62.65M | 21.22M |
| Employees | 5,600 | 293 |
| Sector | Utilities | Industrials |
| Industry | Environmental 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
- Casella Waste Systems is about 18.3 times larger than Perma-Fix Environmental Services by market value ($5.33B vs $291.96M).
- PESI has outperformed CWST by 47.8 percentage points over the past year.
- The two companies sit in different sectors: Casella Waste Systems in Utilities and Perma-Fix Environmental Services in Industrials.
About Casella Waste Systems
CWST stock →Casella Waste Systems, Inc., together with its subsidiaries, operates as a vertically integrated solid waste services company in the United States. The company offers resource management expertise and services primarily in the areas of solid waste collection and disposal, transfer, recycling and organics services to residential, commercial, municipal, institutional, and industrial customers.
Utilities · Environmental Services · 5,600 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
CWST vs PESI FAQ
Which is bigger, Casella Waste Systems or Perma-Fix Environmental Services?
Casella Waste Systems (CWST) is larger, with a market capitalization of $5.33B compared with $291.96M for Perma-Fix Environmental Services (PESI).
Which stock has performed better over the past year, CWST or PESI?
PESI returned +41.46% over the past 12 months, compared with -6.30% for CWST (price return, excluding dividends). Past performance does not predict future results.
Are Casella Waste Systems and Perma-Fix Environmental Services in the same industry?
Yes. Both are classified in the Environmental Services industry within the Utilities sector.