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Side-by-side financial comparison of Clean Energy Fuels Corp. (CLNE) and Esperion Therapeutics, Inc. (ESPR). Click either name above to swap in a different company.

Esperion Therapeutics, Inc. is the larger business by last-quarter revenue ($168.4M vs $112.3M, roughly 1.5× Clean Energy Fuels Corp.). On growth, Esperion Therapeutics, Inc. posted the faster year-over-year revenue change (143.7% vs 2.7%). Over the past eight quarters, Esperion Therapeutics, Inc.'s revenue compounded faster (10.6% CAGR vs 4.1%).

Bloom Energy is an American public company that designs and manufactures solid oxide fuel cells (SOFCs) which independently produce electricity onsite for power generation in data centers, manufacturing, and other commercial sectors. Founded in 2001 and headquartered in San Jose, California; its fuel cell technology generates electricity through a chemical conversion process, which differs from most other power sources reliant on combustion, and can use natural gas, biogas or hydrogen as fuel...

Esperion Therapeutics, Inc. is a publicly traded American pharmaceutical company focused on the development of bempedoic acid, an orally available small molecule designed to lower elevated levels of LDL-C. The company is headquartered in Ann Arbor, Michigan.

CLNE vs ESPR — Head-to-Head

Bigger by revenue
ESPR
ESPR
1.5× larger
ESPR
$168.4M
$112.3M
CLNE
Growing faster (revenue YoY)
ESPR
ESPR
+141.0% gap
ESPR
143.7%
2.7%
CLNE
Faster 2-yr revenue CAGR
ESPR
ESPR
Annualised
ESPR
10.6%
4.1%
CLNE

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CLNE
CLNE
ESPR
ESPR
Revenue
$112.3M
$168.4M
Net Profit
$-43.0M
Gross Margin
Operating Margin
-9.5%
50.6%
Net Margin
-38.3%
Revenue YoY
2.7%
143.7%
Net Profit YoY
-42.6%
EPS (diluted)
$-0.21
$0.32

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
CLNE
CLNE
ESPR
ESPR
Q4 25
$112.3M
$168.4M
Q3 25
$106.1M
$87.3M
Q2 25
$102.6M
$82.4M
Q1 25
$103.8M
$65.0M
Q4 24
$109.3M
$69.1M
Q3 24
$104.9M
$51.6M
Q2 24
$98.0M
$73.8M
Q1 24
$103.7M
$137.7M
Net Profit
CLNE
CLNE
ESPR
ESPR
Q4 25
$-43.0M
Q3 25
$-23.8M
$-31.3M
Q2 25
$-20.2M
$-12.7M
Q1 25
$-135.0M
$-40.5M
Q4 24
$-30.2M
Q3 24
$-18.2M
$-29.5M
Q2 24
$-16.3M
$-61.9M
Q1 24
$-18.4M
$61.0M
Operating Margin
CLNE
CLNE
ESPR
ESPR
Q4 25
-9.5%
50.6%
Q3 25
-12.8%
-11.4%
Q2 25
-9.0%
8.6%
Q1 25
-121.7%
-34.0%
Q4 24
-11.8%
-6.4%
Q3 24
-8.1%
-31.0%
Q2 24
-5.7%
3.5%
Q1 24
-9.0%
52.5%
Net Margin
CLNE
CLNE
ESPR
ESPR
Q4 25
-38.3%
Q3 25
-22.4%
-35.9%
Q2 25
-19.7%
-15.4%
Q1 25
-130.1%
-62.2%
Q4 24
-27.6%
Q3 24
-17.3%
-57.2%
Q2 24
-16.6%
-83.9%
Q1 24
-17.8%
44.3%
EPS (diluted)
CLNE
CLNE
ESPR
ESPR
Q4 25
$-0.21
$0.32
Q3 25
$-0.11
$-0.16
Q2 25
$-0.09
$-0.06
Q1 25
$-0.60
$-0.21
Q4 24
$-0.14
$-0.14
Q3 24
$-0.08
$-0.15
Q2 24
$-0.07
$-0.33
Q1 24
$-0.08
$0.34

Balance Sheet & Financial Strength

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

Metric
CLNE
CLNE
ESPR
ESPR
Cash + ST InvestmentsLiquidity on hand
$156.1M
$167.9M
Total DebtLower is stronger
$226.8M
Stockholders' EquityBook value
$559.4M
$-302.0M
Total Assets
$1.1B
$465.9M
Debt / EquityLower = less leverage
0.41×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CLNE
CLNE
ESPR
ESPR
Q4 25
$156.1M
$167.9M
Q3 25
$232.2M
$92.4M
Q2 25
$240.8M
$86.1M
Q1 25
$226.6M
$114.6M
Q4 24
$217.5M
$144.8M
Q3 24
$243.5M
$144.7M
Q2 24
$249.3M
$189.3M
Q1 24
$248.9M
$226.6M
Total Debt
CLNE
CLNE
ESPR
ESPR
Q4 25
$226.8M
Q3 25
$284.3M
Q2 25
$277.9M
Q1 25
$271.6M
Q4 24
$265.4M
Q3 24
$264.1M
Q2 24
$263.0M
Q1 24
$262.0M
Stockholders' Equity
CLNE
CLNE
ESPR
ESPR
Q4 25
$559.4M
$-302.0M
Q3 25
$585.2M
$-451.4M
Q2 25
$590.8M
$-433.5M
Q1 25
$596.7M
$-426.2M
Q4 24
$713.3M
$-388.7M
Q3 24
$724.8M
$-370.2M
Q2 24
$723.0M
$-344.2M
Q1 24
$722.9M
$-294.3M
Total Assets
CLNE
CLNE
ESPR
ESPR
Q4 25
$1.1B
$465.9M
Q3 25
$1.1B
$364.0M
Q2 25
$1.1B
$347.1M
Q1 25
$1.1B
$324.0M
Q4 24
$1.2B
$343.8M
Q3 24
$1.2B
$314.1M
Q2 24
$1.2B
$352.3M
Q1 24
$1.2B
$373.1M
Debt / Equity
CLNE
CLNE
ESPR
ESPR
Q4 25
0.41×
Q3 25
0.49×
Q2 25
0.47×
Q1 25
0.46×
Q4 24
0.37×
Q3 24
0.36×
Q2 24
0.36×
Q1 24
0.36×

Cash Flow & Capital Efficiency

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

Metric
CLNE
CLNE
ESPR
ESPR
Operating Cash FlowLast quarter
$13.1M
$45.2M
Free Cash FlowOCF − Capex
$6.5M
FCF MarginFCF / Revenue
5.8%
Capex IntensityCapex / Revenue
5.9%
0.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$59.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CLNE
CLNE
ESPR
ESPR
Q4 25
$13.1M
$45.2M
Q3 25
$13.1M
$-4.3M
Q2 25
$35.9M
$-31.4M
Q1 25
$23.4M
$-22.6M
Q4 24
$21.9M
$-35.0M
Q3 24
$21.4M
$-35.3M
Q2 24
$18.8M
$-7.2M
Q1 24
$2.6M
$53.8M
Free Cash Flow
CLNE
CLNE
ESPR
ESPR
Q4 25
$6.5M
Q3 25
$6.5M
Q2 25
$30.9M
Q1 25
$15.9M
Q4 24
$10.3M
Q3 24
$42.0K
$-35.5M
Q2 24
$4.8M
$-7.3M
Q1 24
$-15.6M
$53.8M
FCF Margin
CLNE
CLNE
ESPR
ESPR
Q4 25
5.8%
Q3 25
6.1%
Q2 25
30.2%
Q1 25
15.4%
Q4 24
9.5%
Q3 24
0.0%
-68.7%
Q2 24
4.9%
-9.9%
Q1 24
-15.1%
39.0%
Capex Intensity
CLNE
CLNE
ESPR
ESPR
Q4 25
5.9%
0.0%
Q3 25
6.2%
0.0%
Q2 25
4.8%
0.0%
Q1 25
7.2%
0.0%
Q4 24
10.5%
0.0%
Q3 24
20.3%
0.3%
Q2 24
14.2%
0.1%
Q1 24
17.6%
0.1%
Cash Conversion
CLNE
CLNE
ESPR
ESPR
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
0.88×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CLNE
CLNE

Volume Related Fuel Sales$73.6M66%
Services$15.1M13%
Station Construction Sales$10.7M9%
Volume Related Renewable Identification Number Credits$9.5M8%
Volume Related Low Carbon Fuel Standard Credits$3.4M3%

ESPR
ESPR

Collaboration Revenue$124.7M74%
Products$43.7M26%

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