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Perma-Fix Environmental Services, Inc. (PESI) Stock Price & Analysis

Perma-Fix Environmental Services, Inc. (PESI) — MoonshotScore 26/100 (Weak band), calculated Oct 5, 2026. Price $15.23 (-2.09%), as of the Oct 5, 2026 trading session; market cap $323M.

Educational signal · not a buy or sell recommendation · How to read this

$15.23 −$0.325 (-2.09%) Market Cap $323M

Perma-Fix Environmental Services, Inc. · PESI · NASDAQ

Perma-Fix Environmental Services, Inc. provides environmental and technology solutions for the treatment of hazardous and radioactive waste. The company operates in three segments: Treatment, Services, and Medical, serving government and commercial clients.

Price as of Oct 5, 2026

Key Statistics

26 of 100

MoonshotScore v2 · Perma-Fix Environmental Services (PESI)

Weak
Business Quality Poor (6)
Financial Safety Okay (45)
Valuation Bubble (13)
Growth Durability Shrinking (15)
Momentum Surging (83)
Why this rating? Method, drivers & history

Bands for the MoonshotScore: Exceptional 80-100 · Strong 65-79 · Fair 45-64 · Weak below 45.

  • Business Quality — Is this a genuinely good business?
  • Financial Safety — Could this blow up on me?
  • Valuation — Am I paying a fair price?
  • Growth Durability — Is the growth real and likely to last?
  • Momentum — Is the market already moving on this?
The ten-second read ·

Strong price action running well ahead of the business — bottom-tier quality underneath; a move to treat with suspicion, not chase. Business Quality: Poor; Financial Safety: Okay; Valuation: Bubble; Growth Durability: Shrinking; Momentum: Surging.

  • quarterly revenue $13M (Q2 FY2026, quarter ended Jun 2026)
  • EPS beat 1 of 8
  • Altman Z 3.04 · Piotroski F 2

Holding back: weak fundamentals, a rich price, soft growth

Helping: positive momentum

What has the MoonshotScore done over time?

MoonshotScore snapshots recorded for PESI (30 recorded, newest six shown)
RecordedScoreBand
27Weak
27Weak
27Weak
26Weak
26Weak
26Weak

The score was 26 in the stored Oct 4, 2026 snapshot and remains 26 in the current publication computed Oct 5, 2026 (0); the largest pillar moves were Growth Durability +1; the pillar moves offset under the sector-relative weighting, so the headline score is unchanged.

Calculation uses the most recent completed US trading session. Live price changes do not update the score immediately.

Computed · Educational signal · not a buy or sell recommendation · How the MoonshotScore is computed →

Price & valuation

As of
MeasureValue
Latest provided price$15.23
Change on the day-2.09%
52-week range$8.58 – $21.32
Market capitalisation$323M
Shares traded on the day11K

Price & events

Council Score · weighted blend of 2 available disciplines

Council score for Perma-Fix Environmental Services (PESI): Split View

41/100 · C

Some lenses disagree with the MoonshotScore. Compare their readings below; each uses a different method.

5-Factor Breakdown

Growth Durability Negative
Momentum Strong
Business Quality Negative
Financial Safety Neutral
Valuation Negative

Legends Council

5 lenses, 5 current

AI simulations built from the named investors' published principles. Not affiliated with, endorsed by, or the opinion of these individuals. How these lenses are built

Dalio-style lens (simulated) Ray Dalio Favorable read
Griffin-style lens (simulated) Ken Griffin Favorable read
Englander-style lens (simulated) Izzy Englander Neutral read
Klarman-style lens (simulated) Seth Klarman Unfavorable read
Moon AI lens (model) Neutral read

Read on: Oct 5, 2026

Munger's Mindset

Balance Sheet & Valuation · historical

Financial Health Weak
Margin of Safety Fairly Valued
Profit Margin Weak
Revenue Growth Neutral
Debt/Equity Strong
ROE Negative
Gross Margin Negative

Read on: Sep 27, 2026 · older than the 27 hours refresh window; not a current reading

How to read these bars and different assessments

Council is a separate blend of available disciplines; MoonshotScore above remains the five-pillar research rating.

Bars show each model's ordered assessment on its own scale, not a probability or a comparable investment return. The adjacent words give the assessment; more filled segments indicate a stronger model reading.

Two of these lenses read this company more favourably than the MoonshotScore does: Dalio-style lens and Griffin-style lens. Each lens is a separate scoring function over its own inputs, so a disagreement is a difference of method rather than a correction — the page's answer stays the MoonshotScore above.

On Sep 27, 2026, the Munger lens read the price at that time as fairly valued against its own estimate of value.

Readings on this page are from Oct 6, 2026, except a card that shows its own read date.

Watch the PESI film — every key number, told as a short cinematic story

~2 min · open the film

1 · What is it?

What is Perma-Fix Environmental Services (PESI), and what does it report?

Short answer · as of

A current FMP business description is unavailable; the listing and provider classification below are the available identity facts. Perma-Fix Environmental Services, Inc. (PESI) is listed on NASDAQ. It employs 300 people and is led by Mark J. Duff. In Q2 FY2026 it reported revenue of $13M and net income of -$6M. The market values it at $323M.

2 · Latest results

What do the latest results show for Perma-Fix Environmental Services (PESI)?

Short answer · as of

The most recent reported quarter, Q2 FY2026, carried revenue of $13M. Against analyst estimates the company has EPS beat 1 of 8 reports.

Quarterly income statement — 4 quarters
Revenue, net income and earnings per share by quarter
PeriodRevenueNet incomeEPS
Q2 FY2026$13M-$6M-$0.31 (diluted)
Q1 FY2026$11M-$7M-$0.40 (diluted)
Q4 FY2025$16M-$6M-$0.31 (diluted)
Q3 FY2025$17M-$2M-$0.10 (diluted)
3 · Financial strengths and risks

What are the financial strengths and risks for Perma-Fix Environmental Services (PESI)?

Short answer

The MoonshotScore pillars rate positive momentum as strengths. What is holding it back is weak fundamentals, a rich price, soft growth. The distress and quality screens read Altman Z 3.04 · Piotroski F 2. Trailing ratios: ROE -41.0% · ROA -20.8% · current ratio 1.67 · earnings yield -5.7% · free-cash-flow yield -5.5%.

Data-derived red flags

  • Negative return on equity (-41.0%) — the business is not currently generating profit on shareholder capital.
  • Inconsistent delivery — missed Wall Street EPS estimates in 6 of the last 8 reported quarters.
  • Weak fundamentals — a Piotroski F-Score of 2/9 flags soft profitability, leverage or efficiency.
5 · Peer comparison

How does Perma-Fix Environmental Services compare with its peers?

Short answer

Perma-Fix Environmental Services's score ranks 13th of 13 in the bounded comparison shown, against 12 same-model peers. These are company scores, not expected investment returns. The set lists named competitors first, then companies in the same data-provider industry classification closest in market value; that classification is the provider's, not our judgment of business similarity.

Peer set — price, market value and MoonshotScore
CompanyPriceMarket valueScore
Clean Harbors, Inc. (CLH) Named competitor$325.09 Oct 5, 2026$16.8B66 5-pillar Oct 5, 2026
Waste Connections, Inc. (WCN) Same industry, near in market value$154.63 Oct 5, 2026$38.8B66 5-pillar Oct 5, 2026
Republic Services, Inc. (RSG) Same industry, near in market value$213.53 Oct 5, 2026$64.5B66 5-pillar Oct 5, 2026
Waste Management, Inc. (WM) Named competitor$206.99 Oct 5, 2026$81.7B65 5-pillar Oct 5, 2026
Avalon Holdings Corporation (AWX) Same industry, near in market value$2.47 Oct 5, 2026$9.86M58 5-pillar Oct 5, 2026
Casella Waste Systems, Inc. (CWST) Same industry, near in market value$83.32 Oct 5, 2026$5.18B52 5-pillar Oct 5, 2026
One and one Green Technologies. Inc (YDDL) Same industry, near in market value$1.41 Oct 5, 2026$65.5M45 5-pillar Oct 5, 2026
ENGS (ENGS) Same industry, near in market value$3.04 Oct 5, 2026$41.9M42 5-pillar Oct 5, 2026
CDT Environmental Technology Investment Holdings Limited ordinary shares (CDTG) Same industry, near in market value$1.05 Oct 5, 2026—33 5-pillar Oct 5, 2026
Quest Resource Holding Corporation (QRHC) Same industry, near in market value$1.45 Oct 5, 2026$28.9M32 5-pillar Oct 5, 2026
Enviri Corporation (NVRI) Same industry, near in market value$20.63 Oct 5, 2026$570M29 5-pillar Oct 5, 2026
GFL Environmental Inc. (GFL) Same industry, near in market value$42.58 Oct 5, 2026$14.7B29 5-pillar Oct 5, 2026
Perma-Fix Environmental Services (PESI) — this page$15.23$323M26

Only 5-pillar scores are ranked together. Other models are not directly comparable. Price and score dates are shown separately; market-value dates are unavailable.

The records behind this page

Insider activity

Form 4 records via FMP · Of the newest 100 records, those within the last 180 days, newest dated Oct 1, 2026

Transactions
23
Identified insiders
7
Purchases
0
Sales
0
Other transactions
23

Purchases and sales use the reported transaction category. Other transactions include awards, exercises, gifts, withholding and unclassified activity; an acquisition or disposition alone is not a purchase or sale. These records do not establish intent.

Perma-Fix Environmental Services Stock: Key Questions Answered

These answers are editorial: 1 of these 9 answers is drawn from the PESI research dossier (written May 10, 2026 by gemini-2.0-flash); the other 8 are question templates that restate figures shown above. Figures in this section are not part of the source register.

What does the MoonshotScore mean for PESI?

PESI carries the MoonshotScore stated above — the Weak band. This is an educational research signal, not a buy or sell recommendation. The number comes from the five-pillar engine (business quality, financial safety, valuation, growth durability, momentum), re-ranked daily against sector peers. Perma-Fix Environmental Services, Inc. provides environmental and technology solutions for the treatment of hazardous and radioactive waste.

Is PESI a good stock to buy?

Stock Expert AI does not rate PESI buy, sell or hold. Perma-Fix Environmental Services, Inc. carries a MoonshotScore, in the Weak band, a research rating against its peers rather than a forecast. Whether it fits is your call: check what it sells, whether it earns and what the price assumes. This is educational content, not investment advice.

What is the PESI stock price today?

The last price recorded on this page for Perma-Fix Environmental Services, Inc. (PESI) is $15.23, as of the Oct 5, 2026 trading session (source: Financial Modeling Prep (FMP) · quote). It is a provider snapshot, not a live exchange feed, so check a brokerage quote before you trade.

What are the main risks for PESI?

The main risks for Perma-Fix Environmental Services, Inc. include stringent environmental regulations, competition from larger waste management companies, and reliance on government contracts. The company's negative profit margin also poses a significant risk. Investors should carefully assess these risks before investing in PESI.

What are the key factors to evaluate for PESI?

Perma-Fix Environmental Services, Inc. (PESI) holds a MoonshotScore in the low range. Operates in three segments: Treatment, Services, and Medical, diversifying its revenue streams. Not financial advice.

How frequently does PESI data refresh on this page?

PESI's price is the last quote we recorded, from the Oct 5, 2026 trading session. Pages are served from a cache, so the copy you are reading can lag that quote. The quote is a provider snapshot, not an exchange feed. Fundamentals follow quarterly filings. V2 is recalculated from the most recent completed US trading session; the score's own date shows its last successful run.

What has driven PESI's recent stock price performance?

Perma-Fix Environmental Services, Inc. (PESI) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Specialized expertise in nuclear and radioactive waste treatment. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider PESI overvalued or undervalued right now?

Perma-Fix Environmental Services, Inc. (PESI) has no trailing P/E available here, so lean on price-to-sales and cash flow in the Financials tab. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

Can I buy fractional shares of PESI?

Fractional-share availability for Perma-Fix Environmental Services, Inc. (PESI) depends on your brokerage, account and supported securities. Check the broker's current eligibility, minimums and fees before placing an order.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Machine-generated analysis by Stock Expert AI — model gemini-2.0-flash, generated May 10, 2026. Editorial oversight is systemic, not page-by-page. Editorially accountable: Sedat ANAK, Founder and Editor-in-Chief.

Sources — records for every figure on this page (17 figures)

The 17 rows below are exactly the facts the evidence-backed sections of this page printed — the 10-second verdict, the MoonshotScore, price and market value, the five questions with their receipts, and the records behind this page. Known dates and sources are recorded on their own rows; an em dash or UNRECORDED tier preserves a stored observation without inventing either. The quarterly income statement is provider-standardized (FMP) under one row, and scale definitions — a 0-100 rating, the band ladder, the Piotroski 0–9 range — are fixed rather than measured. No number in those sections was generated by a model. The register does not cover quoted third-party headlines, the dated council readings, or the Frequently Asked Questions; each of those says where it came from where it stands.

"As of" is the date the value is true for where the source carries one — a quarter end, a filing date, a price close, the day the score was computed. A cached observation with no source date remains undated; the page publication date is not used as a substitute.

FMP — 9 facts from Financial Modeling Prep endpoint families

FMP facts used on this page
Fact IDFactValue as shownAs ofTierSource
px.lastLatest provided price$15.23FMPFinancial Modeling Prep (FMP) · quote — Dated to the US trading session the price belongs to, derived from the quote record's timestamp (weekend and pre-open reads roll back to the previous weekday; exchange holidays are not modelled). The record does not establish an exchange execution time. Retrieved 2026-10-05T13:50:51.000Z.
px.changeChange on the day-2.09%FMPFinancial Modeling Prep (FMP) · quote
px.mcapMarket capitalisation$323MFMPFinancial Modeling Prep (FMP) · quote — Date unknown Market cap record date: 2026-10-05. FMP quote timestamp: 2026-10-05T13:50:51.000Z. Captured from FMP at 2026-10-05T13:51:10.469Z. No share-count basis is inferred; this page preserves the reported amount instead of recalculating it from shares.
px.change_absChange on the day, in dollars−$0.325FMPFinancial Modeling Prep (FMP) · quote
fin.q_revenueRevenue, Q2 FY2026$13MFMPFinancial Modeling Prep (FMP) · income statement (quarterly)
px.volumeShares traded on the day11KFMPFinancial Modeling Prep (FMP) · quote
fin.q_incomeNet income, Q2 FY2026-$6MFMPFinancial Modeling Prep (FMP) · income statement (quarterly)
fin.q_tableQuarterly income statement4 quarters through Q2 FY2026FMPFinancial Modeling Prep (FMP) · income statement (quarterly), as filed
own.insidersInsider transactions via FMP23 transactions · 0 purchases, 0 sales, 23 other transactions · 7 identified insiders · of the newest 100 records, those within the last 180 days, newest dated Oct 1, 2026FMPFinancial Modeling Prep (FMP), carrying Form 4 transaction records — Purchases and sales use the reported transaction category. Other transactions include awards, exercises, gifts, withholding and unclassified activity; an acquisition or disposition alone is not a purchase or sale. These records do not establish intent.

UNRECORDED — 6 facts from stored observations whose source was not recorded

UNRECORDED facts used on this page
Fact IDFactValue as shownAs ofTierSource
earn.historyReported versus estimated, recent quartersEPS beat 1 of 8UNRECORDEDStored earnings-history observation — Captured 2026-10-05
fin.scoresDistress and quality screensAltman Z 3.04 · Piotroski F 2UNRECORDEDStored financial-scores observation — Captured 2026-10-05
px.range5252-week range$8.58 – $21.32UNRECORDEDStored company-profile observation — Captured 2026-10-05
id.employeesEmployees300UNRECORDEDStored company-profile observation — Captured 2026-10-05
id.ceoChief executiveMark J. DuffUNRECORDEDStored company-profile observation — Captured 2026-10-05
fin.ratiosReturn and yield ratios (trailing twelve months)ROE -41.0% · ROA -20.8% · current ratio 1.67 · earnings yield -5.7% · free-cash-flow yield -5.5%—UNRECORDEDStored key metrics — Date unknown

OURS — 2 facts from Stock Expert AI's own score and rank

OURS facts used on this page
Fact IDFactValue as shownAs ofTierSource
ours.moonshotMoonshotScore v226 of 100 · Weak · pillars 6 / 45 / 13 / 15 / 83OURSStock Expert AI MoonshotScore v2 engine
ours.moonshot_changeMoonshotScore movement26 (stored snapshot Oct 4, 2026) → 26 (current publication computed Oct 5, 2026) (0)OURSStock Expert AI current score publication and immutable score snapshots
Published
Research standards
Methodology · Editorial policy · Corrections
Data Sources & Methodology
Figures come from Financial Modeling Prep (FMP). If FMP has no figure for a ticker, a price or fundamental may come from a Yahoo Finance fallback, or a price from an Alpaca fallback. SEC EDGAR is used only for filing links and company identity details (legal name, address), never for figures. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.