Perma Fix Environmental Services Inc (PESI) stock
Close on Nov 13, 2026Market cap $315.73MP/E –Yield –
Perma Fix Environmental Services Inc saw revenue fall 98.9% to $642.00K over fiscal 2025. Free cash flow was -$20.42M. At the latest close the market valued the company at $315.73M.
Key statistics
Valuation at the latest close; fundamentals over fiscal 2025, balances at Sep 30, 2026
Valuation
- Market cap
- $315.73M
- P/E ratio
- –
- Price to sales
- –
- Price to book
- 5.72
- Dividend yield
- –
- Free cash flow yield
- -6.47%
Fundamentals
- Revenue
- $642.00K
- Net income
- -$22.81M
- EPS, diluted
- -$1.19
- Free cash flow
- -$20.42M
- Book value per share
- $2602.74
- Diluted shares
- 0M
Trading
- Previous close
- $15.57
- Open
- $15.65
- Day's range
- $14.72 – $15.66
- Volume
- 186,570
- Average volume (20 days)
- 301,541
- Index membership
- Russell 2000 (since Sep 2024)
- Beta (5 years)
- 0.64
- 52-week range
- $8.58 – $21.32
- RSI (14 days)
- 55.5
- Volatility (1 year)
- 62.6%
- Relative volume
- 0.47×
- WACC
- 8.3%
On 1 of our idea list: Most shorted (a warning list)
Index membership is inferred from the holdings of funds that track each index (IWM), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2010, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 13, 2026. The S&P 500 is measured by the SPY fund.
| Period | PESI | S&P 500 | Difference | PESI per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +12.5% | -3.0% | +15.5 pts | ||
| 3 months | -17.1% | -2.8% | −14.4 pts | ||
| Year to date | +18.2% | +11.5% | +6.7 pts | ||
| 1 year | +13.0% | +13.5% | −0.5 pts | ||
| 3 years | +93.2% | +77.7% | +15.5 pts | +24.6% | +21.1% |
| 5 years | +135.8% | +72.6% | +63.2 pts | +18.7% | +11.5% |
| 10 years | +258.6% | +308.2% | −49.6 pts | +13.6% | +15.1% |
Fifteen years at a glance
Fiscal years 2011 to 2025 and trailing twelve months, USD
Revenue
Gross profit
Operating income
Net income
EPS, diluted
Free cash flow
Press releases
Releases Perma Fix Environmental Services filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- News
- News
- News
- News
- Results
About Perma Fix Environmental Services
Hazardous Waste Management
Perma-Fix Environmental Services, Inc. is an environmental and nuclear services firm that manages and treats radioactive, mixed, hazardous, and industrial waste. The company operates through two segments: Treatment and Services. Its Treatment segment focuses on the processing, treatment, and disposal of nuclear, hazardous, and mixed waste, as well as developing specialized waste treatment techniques. The Services segment provides technical and nuclear solutions, including radiological surveys, health physics, industrial hygiene, environmental restoration, decontamination and decommissioning, and license termination support, alongside equipment maintenance and calibration. The company serves research institutions, commercial businesses, public utilities, and governmental agencies.
Company profile, executives and historyPerma Fix Environmental Services stock: common questions
What is Perma Fix Environmental Services's stock price?
PESI closed at $14.88 on Nov 13, 2026, down 4.43% on the day. Over the past 52 weeks it traded between $8.58 and $21.32.
What is Perma Fix Environmental Services's market cap?
Perma Fix Environmental Services was worth $315.73M at the close on Nov 13, 2026: the share price times the diluted shares outstanding.
What is PESI's P/E ratio?
Perma Fix Environmental Services lost money over the twelve months to Sep 30, 2026 (diluted EPS -$1.19), so it has no meaningful P/E ratio.
How much revenue does Perma Fix Environmental Services make?
Perma Fix Environmental Services reported revenue of $642.00K for fiscal 2025, down 98.9% from a year earlier.
Does Perma Fix Environmental Services pay a dividend?
No. Perma Fix Environmental Services has not paid a cash dividend over the last twelve months.
How has PESI stock performed over the past year?
Including dividends, PESI returned +13.0% over the past year, against +13.5% for the S&P 500.
How many PESI shares are sold short?
4M shares were sold short at the latest FINRA report, 21.82% of the float, or 12.9 days of average trading volume.
Who are Perma Fix Environmental Services's competitors?
Companies most similar to Perma Fix Environmental Services by business, industry and size include DBHL, LOOP, SCWO, OIO, CETY.
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