What is PESI's market cap?

$267.03M, based on the Nov 4 close of $12.59.

Does Perma-Fix Environmental Services pay a dividend?

No regular cash dividend has been paid in the last year.

How much of PESI is sold short?

3.5M shares, 18.2% of float, as of Oct 15, 2026.

What sector is PESI in?

Utilities, in the Electric, Gas & Water Utilities industry.

NASDAQ · PESIUtilitiesElectric, Gas & Water Utilities

Perma-Fix Environmental Services, Inc. (PESI)

$12.59−3.56%

Close Nov 4, 2026 · split-adjusted

Nov 4, 2026$12.59▼ 1.91% in range

Nov 3, 2025Low $8.61 · High $19.43Nov 4, 2026

What changed · written from our data

As of Nov 4, 2026

Perma-Fix Environmental Services closed at $12.59 on Nov 4, down 3.56%, 35.2% below its 52-week closing high. Volume of 151.5K shares was 0.48× its 20-day average (below normal).

Split-adjusted performance: -18.6% over one month, +6.8% over six months, -1.9% over one year.

In the quarter ended Jun 30, 2026, revenue was $12.88M, down 11.7% from a year earlier, with a net margin of -48.1%.

Short interest was 3.5M shares at the Oct 15 settlement, up 10.3% from the prior report (18.2% of float, 11.4 days to cover).

Market cap$267.0M21.2M shares

Revenue · quarter$12.9M−11.7% YoY

Diluted EPS$-0.32—

P/E · TTM—P/S 4.7×

Net margin-48.1%Gross -19.4%

Dividend yieldNone

52-week range8.61 – 19.43−35.2% from high

Volume151.5K0.48× 20-day avg

Volatility · 60d57.3%Annualised

Short % of float18.2%11.4 days to cover

Net cash$16.6MCash $20.5M

Next earnings—Not scheduled

Split-adjusted performance

1W −7.9%1M −18.6%3M −29.3%6M +6.8%YTD 0.0%1Y −1.9%3Y +39.7%5Y +77.3%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Electric, Gas & Water Utilities

Percentile among 118 companies (100 = best)

6-month momentum77

Revenue growth5

Net margin9

Value (low P/E)—

Size17

Industry medians: 6-month return −1.4%, revenue growth +6.9%, net margin 12.0%, P/E 20.9×.

Short interest

Details →

Shares short3.5M+10.3% vs prior

Days to cover11.4Settled Oct 15

% of float18.2%

Short vol. 10d60.6%of daily volume

Closest peers by size in Electric, Gas & Water Utilities

Company	Price	Today	6M	Rev. growth	Net margin	P/E	Mkt cap
PESIPerma-Fix Environmental Services	$12.59	−3.56%	+6.8%	−11.7%	−48.1%	—	$267.0M
PCYOPure Cycle	$10.77	+2.18%	−6.3%	+60.0%	35.9%	17.6	$259.5M	Compare
RGCORGC Resources	$24.07	+6.69%	+6.1%	−0.9%	3.3%	17.9	$250.8M	Compare
GWRSGlobal Water Resources	$8.02	−0.25%	+14.4%	+5.0%	6.2%	95.3	$230.9M	Compare
CDZICADIZ	$3.67	−3.13%	−22.2%	−76.3%	−1291.0%	—	$312.1M	Compare
ARTNAArtesian Resources	$33.92	+0.41%	+6.3%	+7.4%	21.4%	14.8	$350.3M	Compare
CLNEClean Energy Fuels	$1.59	+1.92%	−29.0%	+3.7%	−14.0%	—	$350.5M	Compare
GFUZGeneral Fusion Group	$5.55	−2.80%	—	—	—	—	$352.7M	Compare
MNTKMontauk Renewables	$2.55	+2.62%	+74.3%	+19.7%	0.4%	45.7	$362.3M	Compare

News about Perma-Fix Environmental Services

All news →

Perma-Fix Announces Proposed Public Offering of Common StockBenzinga · May 14, 2026Neutral

Quick answers

What does Perma-Fix Environmental Services do?: Perma-Fix Environmental Services Inc is a nuclear services company and provider of nuclear and mixed waste management services. The company's nuclear waste services include treatment and management of radioactive and mixed waste (waste containing both hazardous and low-level radioactive waste).
What is PESI's market cap?: $267.03M, based on the Nov 4 close of $12.59.
Does Perma-Fix Environmental Services pay a dividend?: No regular cash dividend has been paid in the last year.
How much of PESI is sold short?: 3.5M shares, 18.2% of float, as of Oct 15, 2026.
What sector is PESI in?: Utilities, in the Electric, Gas & Water Utilities industry.

About Perma-Fix Environmental Services

Perma-Fix Environmental Services Inc is a nuclear services company and provider of nuclear and mixed waste management services. The company's nuclear waste services include treatment and management of radioactive and mixed waste (waste containing both hazardous and low-level radioactive waste). The company operates through two segments: i) The treatment segment: It offers nuclear, low-level radioactive, Mixed, hazardous and non-hazardous waste treatment, processing and disposal services, and ii) the Services segment which generates the majority of the revenue, provides on-site waste management services to commercial and government customers, technology-based services, construction, logistics, and transportation services among others.

HQ: Atlanta, GA307 employeesListed Dec 8, 1992perma-fix.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology