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Side-by-side financial comparison of FENNEC PHARMACEUTICALS INC. (FENC) and PERMA FIX ENVIRONMENTAL SERVICES INC (PESI). Click either name above to swap in a different company.

PERMA FIX ENVIRONMENTAL SERVICES INC is the larger business by last-quarter revenue ($15.7M vs $13.8M, roughly 1.1× FENNEC PHARMACEUTICALS INC.). FENNEC PHARMACEUTICALS INC. runs the higher net margin — -34.7% vs -36.0%, a 1.3% gap on every dollar of revenue. On growth, FENNEC PHARMACEUTICALS INC. posted the faster year-over-year revenue change (73.8% vs 6.9%). Over the past eight quarters, PERMA FIX ENVIRONMENTAL SERVICES INC's revenue compounded faster (7.4% CAGR vs -26.3%).

Fennec Pharmaceuticals Inc. is a biopharmaceutical firm focused on developing and commercializing therapies to reduce treatment-related side effects in pediatric cancer patients. Its lead product targets chemotherapy-induced ototoxicity, with core North American markets serving oncology providers and vulnerable pediatric patient groups.

Perma-Fix Environmental Services Inc provides end-to-end environmental and waste management solutions, specializing in the treatment, processing, and disposal of hazardous, radioactive, and mixed waste streams. It serves U.S. federal government agencies, nuclear facility operators, and industrial clients across the energy, manufacturing, and defense segments.

FENC vs PESI — Head-to-Head

Bigger by revenue
PESI
PESI
1.1× larger
PESI
$15.7M
$13.8M
FENC
Growing faster (revenue YoY)
FENC
FENC
+67.0% gap
FENC
73.8%
6.9%
PESI
Higher net margin
FENC
FENC
1.3% more per $
FENC
-34.7%
-36.0%
PESI
Faster 2-yr revenue CAGR
PESI
PESI
Annualised
PESI
7.4%
-26.3%
FENC

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
FENC
FENC
PESI
PESI
Revenue
$13.8M
$15.7M
Net Profit
$-4.8M
$-5.7M
Gross Margin
7.7%
Operating Margin
-18.5%
-20.6%
Net Margin
-34.7%
-36.0%
Revenue YoY
73.8%
6.9%
Net Profit YoY
-141.1%
-62.2%
EPS (diluted)
$-0.17
$-0.31

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
FENC
FENC
PESI
PESI
Q4 25
$13.8M
$15.7M
Q3 25
$12.5M
$17.5M
Q2 25
$9.7M
$14.6M
Q1 25
$8.8M
$13.9M
Q4 24
$7.9M
$14.7M
Q3 24
$7.0M
$16.8M
Q2 24
$7.3M
$14.0M
Q1 24
$25.4M
$13.6M
Net Profit
FENC
FENC
PESI
PESI
Q4 25
$-4.8M
$-5.7M
Q3 25
$-638.0K
$-1.8M
Q2 25
$-3.2M
$-2.7M
Q1 25
$-1.2M
$-3.6M
Q4 24
$-2.0M
$-3.5M
Q3 24
$-5.7M
$-9.0M
Q2 24
$-5.6M
$-4.0M
Q1 24
$12.8M
$-3.6M
Gross Margin
FENC
FENC
PESI
PESI
Q4 25
7.7%
Q3 25
14.6%
Q2 25
10.6%
Q1 25
4.7%
Q4 24
4.0%
Q3 24
7.9%
Q2 24
-9.3%
Q1 24
-4.6%
Operating Margin
FENC
FENC
PESI
PESI
Q4 25
-18.5%
-20.6%
Q3 25
-1.5%
-10.7%
Q2 25
-28.3%
-19.8%
Q1 25
-9.2%
-26.8%
Q4 24
-11.8%
-24.4%
Q3 24
-74.6%
-15.5%
Q2 24
-69.4%
-36.0%
Q1 24
54.2%
-32.8%
Net Margin
FENC
FENC
PESI
PESI
Q4 25
-34.7%
-36.0%
Q3 25
-5.1%
-10.5%
Q2 25
-32.7%
-18.6%
Q1 25
-13.3%
-25.7%
Q4 24
-25.0%
-23.7%
Q3 24
-82.2%
-53.4%
Q2 24
-76.5%
-28.2%
Q1 24
50.6%
-26.1%
EPS (diluted)
FENC
FENC
PESI
PESI
Q4 25
$-0.17
$-0.31
Q3 25
$-0.02
$-0.10
Q2 25
$-0.11
$-0.15
Q1 25
$-0.04
$-0.19
Q4 24
$-0.02
$-0.23
Q3 24
$-0.21
$-0.57
Q2 24
$-0.20
$-0.27
Q1 24
$0.41
$-0.26

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
FENC
FENC
PESI
PESI
Cash + ST InvestmentsLiquidity on hand
$36.8M
Total DebtLower is stronger
$1.9M
Stockholders' EquityBook value
$35.5M
$50.1M
Total Assets
$70.6M
$88.0M
Debt / EquityLower = less leverage
0.04×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FENC
FENC
PESI
PESI
Q4 25
$36.8M
Q3 25
$21.9M
Q2 25
$18.7M
Q1 25
$22.7M
Q4 24
$26.6M
Q3 24
$40.3M
Q2 24
$43.1M
Q1 24
$51.2M
Total Debt
FENC
FENC
PESI
PESI
Q4 25
$1.9M
Q3 25
$19.4M
$1.9M
Q2 25
$19.4M
$2.0M
Q1 25
$19.4M
$2.2M
Q4 24
$19.3M
$2.3M
Q3 24
$32.1M
$2.5M
Q2 24
$31.8M
$2.2M
Q1 24
$31.3M
$2.5M
Stockholders' Equity
FENC
FENC
PESI
PESI
Q4 25
$35.5M
$50.1M
Q3 25
$-4.5M
$55.4M
Q2 25
$-7.5M
$56.8M
Q1 25
$-5.9M
$59.2M
Q4 24
$-5.9M
$62.4M
Q3 24
$-5.2M
$42.4M
Q2 24
$-1.4M
$51.0M
Q1 24
$3.0M
$36.2M
Total Assets
FENC
FENC
PESI
PESI
Q4 25
$70.6M
$88.0M
Q3 25
$49.3M
$91.2M
Q2 25
$44.9M
$90.2M
Q1 25
$46.4M
$92.9M
Q4 24
$44.9M
$97.2M
Q3 24
$58.9M
$78.2M
Q2 24
$63.2M
$87.0M
Q1 24
$69.2M
$74.0M
Debt / Equity
FENC
FENC
PESI
PESI
Q4 25
0.04×
Q3 25
0.03×
Q2 25
0.04×
Q1 25
0.04×
Q4 24
0.04×
Q3 24
0.06×
Q2 24
0.04×
Q1 24
10.40×
0.07×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
FENC
FENC
PESI
PESI
Operating Cash FlowLast quarter
$-6.0M
$-2.1M
Free Cash FlowOCF − Capex
$-4.2M
FCF MarginFCF / Revenue
-26.9%
Capex IntensityCapex / Revenue
13.4%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-15.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FENC
FENC
PESI
PESI
Q4 25
$-6.0M
$-2.1M
Q3 25
$1.5M
$-4.6M
Q2 25
$-3.7M
$-1.9M
Q1 25
$-4.3M
$-2.1M
Q4 24
$-1.5M
$-3.3M
Q3 24
$-2.2M
$-5.6M
Q2 24
$-8.4M
$-1.3M
Q1 24
$39.0M
$-4.5M
Free Cash Flow
FENC
FENC
PESI
PESI
Q4 25
$-4.2M
Q3 25
$-5.8M
Q2 25
$-2.8M
Q1 25
$-2.6M
Q4 24
$-4.5M
Q3 24
$-7.0M
Q2 24
$-1.9M
Q1 24
$-4.8M
FCF Margin
FENC
FENC
PESI
PESI
Q4 25
-26.9%
Q3 25
-33.3%
Q2 25
-19.2%
Q1 25
-18.9%
Q4 24
-30.5%
Q3 24
-41.7%
Q2 24
-13.5%
Q1 24
-35.0%
Capex Intensity
FENC
FENC
PESI
PESI
Q4 25
13.4%
Q3 25
6.7%
Q2 25
6.2%
Q1 25
3.8%
Q4 24
8.0%
Q3 24
8.2%
Q2 24
4.3%
Q1 24
1.8%
Cash Conversion
FENC
FENC
PESI
PESI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
3.04×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

FENC
FENC

Segment breakdown not available.

PESI
PESI

Fixed Price$11.4M73%
Services$4.3M27%

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