Which has grown faster, GASS or PESI?

Over the past five years, GASS grew revenue faster — GASS at a 2.35% CAGR versus PESI at -10.18%.

Is GASS or PESI more profitable?

GASS runs the higher net margin — GASS at 34.97% versus PESI at -37.04%.

How have GASS and PESI total returns compared?

Over the past 10 years, GASS delivered 10.20% and PESI delivered 11.56% annualized total return. Past performance doesn't predict future results.

StealthGas Inc. (GASS) vs Perma-Fix Environmental Services, Inc. (PESI)

A side-by-side comparison of StealthGas Inc. and Perma-Fix Environmental Services, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.

GASS

StealthGas Inc.

$340M

$9.13IndustrialsDelayed quote: Oct 6, 2026, 1:55 PM EDT

PESI

Perma-Fix Environmental Services, Inc.

$330M

$15.58IndustrialsDelayed quote: Oct 6, 2026, 1:55 PM EDT

Total return — GASS vs PESI

growth of $100 · dividends reinvested · last 10y

GASS +177.0% (+10.7%/yr)PESI +196.2% (+11.5%/yr)PESI compounded faster over this window

GASS PESI

GASS vs PESI: by the numbers

•GASS is the larger company ($340M vs $330M market cap).
•GASS is profitable (34.97% net margin) while PESI runs a net loss (-37.04%).
•GASS grew revenue faster over the past five years (2.35% vs -10.18% CAGR).

Metrics side by side

Valuation

Metric	GASS	PESI
P/E ratio	5.60	N/A
Forward P/E	5.40	N/A
PEG ratio	0.14	N/A
P/S ratio	2.00	5.78
P/B ratio	0.47	5.66
EV / EBITDA	3.39	N/A
FCF yield	20.83%	N/A

Profitability

Metric	GASS	PESI
Gross margin	35.21%	9.59%
Operating margin	27.89%	-19.03%
Net margin	34.97%	-37.04%
ROE	8.16%	-36.31%
ROIC	6.51%	-25.42%

Growth (annualized)

Metric	GASS	PESI
Revenue CAGR (5Y)	2.35%	-10.18%
EPS CAGR (5Y)	40.39%	N/A
Total return CAGR (5Y)	27.16%	17.15%

Frequently asked

Which has grown faster, GASS or PESI?: Over the past five years, GASS grew revenue faster — GASS at a 2.35% CAGR versus PESI at -10.18%.
Is GASS or PESI more profitable?: GASS runs the higher net margin — GASS at 34.97% versus PESI at -37.04%.
How have GASS and PESI total returns compared?: Over the past 10 years, GASS delivered 10.20% and PESI delivered 11.56% annualized total return. Past performance doesn't predict future results.

Go deeper

Full GASS analysis Full PESI analysis Interactive comparison tool

Dig into the metrics

StealthGas P/E ratio StealthGas ROE Perma-Fix Environmental Services ROE StealthGas operating margin Perma-Fix Environmental Services operating margin StealthGas revenue growth Perma-Fix Environmental Services revenue growth StealthGas free cash flow Perma-Fix Environmental Services free cash flow

StealthGas & Perma-Fix Environmental Services appear in these rankings

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Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.