PESI
Perma-Fix Environmental Services, Inc. Industrials - Nuclear Waste Treatment Investor Relations →
Perma-Fix Environmental Services, Inc. (PESI) closed at $11.80 as of 2026-03-20, trading 23.9% above its 200-week moving average of $9.52. The stock is currently moving closer to the line, down from 38.4% last week. The 14-week RSI sits at 37, indicating neutral momentum.
Trading volume is running at 1.4x of its 14-week average, which is in the normal range. The balance between buying and selling volume (1.33 ratio) is neutral — neither side is clearly dominating.
Over the past 1688 weeks of data, PESI has crossed below its 200-week moving average 24 times. On average, these episodes lasted 44 weeks. Historically, investors who bought PESI at the start of these episodes saw an average one-year return of +10.0%.
With a market cap of $218 million, PESI is a small-cap stock. Free cash flow yield is currently negative, meaning the company is burning cash. Return on equity stands at -23.3%. The stock trades at 3.9x book value.
Share count has increased 39.1% over three years, indicating dilution.
Over the past 32.4 years, a hypothetical investment of $100 in PESI would have grown to $46, compared to $2498 for the S&P 500. PESI has returned -2.4% annualized vs 10.4% for the index, underperforming the broader market over this period.
Free cash flow has been volatile over the past several years, making the quality of earnings harder to assess.
Business Health
Annual financials — how the underlying business has performed over the past several years.
Cash Flow Free cash flow & net income ($M)
Revenue Annual revenue ($M) — business growth proxy
Total Debt Balance sheet debt ($M)
ROIC Return on invested capital (%)
FCF Yield Free cash flow / market cap (%) — Yartseva signal
Gross Margin Pricing power & competitive moat (%)
Shares Outstanding Buybacks vs dilution (millions)
Growth of $100: PESI vs S&P 500
Monthly data normalized to $100 at start. Vertical dashed lines mark 200-week MA touches.
What Happens After PESI Crosses Below the Line?
Across 24 historical episodes, buying PESI when it crossed below its 200-week moving average produced an average return of +10.4% after 12 months (median +0.0%), compared to +12.3% for the S&P 500 over the same periods. 46% of those episodes were profitable after one year. After 24 months, the average return was +4.0% vs +27.3% for the index.
Each line shows $100 invested at the moment PESI crossed below its 200-week MA. Bold blue = stock average. Gray dashed = S&P 500 average over same periods.
Historical Touches
PESI has crossed below its 200-week MA 24 times with an average 1-year return of +10.0% after recovery.
| Crossed Below | Recovered | Weeks | Max Depth | 1-Year Return | Return Since Touch |
|---|---|---|---|---|---|
| Nov 1993 | Dec 1997 | 213 | 76.8% | -38.3% | -59.8% |
| Dec 1997 | Jun 1998 | 26 | 26.6% | -31.4% | +7.8% |
| Aug 1998 | Oct 2000 | 114 | 44.0% | -1.9% | +45.2% |
| Dec 2000 | Jan 2001 | 3 | 14.3% | +70.2% | +51.0% |
| Feb 2003 | Feb 2003 | 1 | 3.1% | +59.6% | +16.2% |
| Mar 2003 | Oct 2003 | 34 | 23.0% | +37.4% | +11.8% |
| Nov 2003 | Dec 2003 | 3 | 2.4% | -38.6% | +7.2% |
| Mar 2004 | Sep 2005 | 77 | 45.7% | -22.9% | +2.1% |
| Sep 2005 | Jun 2006 | 40 | 28.4% | -2.7% | +7.7% |
| Jan 2008 | Apr 2008 | 12 | 23.6% | -33.3% | +21.0% |
| Sep 2008 | Apr 2009 | 32 | 62.8% | +13.8% | +8.7% |
| Sep 2009 | Oct 2009 | 1 | 1.1% | -21.4% | +9.7% |
| Nov 2009 | Nov 2009 | 1 | 0.7% | -35.8% | +8.2% |
| Dec 2009 | Mar 2010 | 12 | 18.2% | -25.2% | +10.2% |
| Apr 2010 | Apr 2010 | 1 | 5.1% | -29.9% | +11.8% |
| Apr 2010 | May 2016 | 315 | 75.5% | -35.0% | +10.2% |
| Nov 2016 | Feb 2018 | 66 | 26.0% | -1.3% | +198.6% |
| Oct 2018 | Apr 2019 | 23 | 37.5% | +26.8% | +210.4% |
| May 2019 | Sep 2019 | 17 | 9.7% | +43.7% | +197.9% |
| Mar 2020 | Mar 2020 | 1 | 2.1% | +85.9% | +177.5% |
| Feb 2022 | Feb 2022 | 1 | 0.3% | +7.9% | +111.4% |
| Mar 2022 | Apr 2022 | 5 | 2.7% | +59.2% | +111.0% |
| May 2022 | Feb 2023 | 39 | 41.8% | +82.7% | +110.6% |
| Feb 2025 | Apr 2025 | 7 | 17.3% | +69.7% | +46.7% |
| Average | 44 | — | +10.0% | — |
Frequently Asked Questions
Is PESI below its 200-week moving average?
No. Perma-Fix Environmental Services, Inc. (PESI) is currently 23.9% above its 200-week moving average of $9.52. It would need to fall to $9.52 to cross below the line.
What is PESI's 200-week moving average price?
Perma-Fix Environmental Services, Inc.'s 200-week moving average is $9.52 as of 2026-03-20. This is the average weekly closing price over roughly the last 4 years, and it acts as a long-term trend line. When a stock drops below this level, it can signal that the price has fallen far enough from the long-term trend to attract value-oriented investors.
What happens when PESI drops below its 200-week moving average?
PESI has crossed below its 200-week moving average 24 times in our data. On average, buying at that moment produced a one-year return of +10.0%. These dips have historically been decent entry points. These episodes lasted 44 weeks on average.
Is PESI a good value right now?
Here's what our data says about PESI as of 2026-03-20: The stock is above its 200-week moving average, so it doesn't currently meet our primary signal. The 14-week RSI is 37. Free cash flow is currently negative. Return on equity is -23.3%. Price-to-book is 3.9x. This is not a buy or sell recommendation — always do your own research.
How does PESI compare to the S&P 500?
Over the past 32.4 years, $100 invested in PESI would have grown to $46, compared to $2498 for the S&P 500. That's -2.4% annualized vs 10.4% for the index. PESI has underperformed the broader market over this period.
Not financial advice. This is an educational tool. Past performance does not guarantee future results. Do your own research before making investment decisions.
Data as of week of 2026-03-20