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Side-by-side financial comparison of Clean Energy Fuels Corp. (CLNE) and GRAPHIC PACKAGING HOLDING CO (GPK). Click either name above to swap in a different company.

GRAPHIC PACKAGING HOLDING CO is the larger business by last-quarter revenue ($2.1B vs $117.6M, roughly 17.8× Clean Energy Fuels Corp.). GRAPHIC PACKAGING HOLDING CO runs the higher net margin — 3.4% vs -10.6%, a 13.9% gap on every dollar of revenue. On growth, GRAPHIC PACKAGING HOLDING CO posted the faster year-over-year revenue change (0.2% vs 0.0%). Over the past eight quarters, Clean Energy Fuels Corp.'s revenue compounded faster (9.5% CAGR vs -3.5%).

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...

Graphic Packaging International is a Fortune 500 corporation based in Atlanta, Georgia, United States. It designs and manufactures packaging solutions for commercial products. GPI manufactures paperboard and folding cartons for a wide range of popular consumer goods, particularly beverages and packaged food. The company operates paperboard mills in Kalamazoo, Michigan; Macon, Georgia; Middletown, Ohio; Prosperity, South Carolina; Texarkana, Texas; and West Monroe, Louisiana, that use recycled...

CLNE vs GPK — Head-to-Head

Bigger by revenue
GPK
GPK
17.8× larger
GPK
$2.1B
$117.6M
CLNE
Growing faster (revenue YoY)
GPK
GPK
+0.2% gap
GPK
0.2%
0.0%
CLNE
Higher net margin
GPK
GPK
13.9% more per $
GPK
3.4%
-10.6%
CLNE
Faster 2-yr revenue CAGR
CLNE
CLNE
Annualised
CLNE
9.5%
-3.5%
GPK

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
CLNE
CLNE
GPK
GPK
Revenue
$117.6M
$2.1B
Net Profit
$-12.4M
$71.0M
Gross Margin
14.1%
Operating Margin
-2.5%
7.4%
Net Margin
-10.6%
3.4%
Revenue YoY
0.0%
0.2%
Net Profit YoY
-48.6%
EPS (diluted)
$0.24

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
GPK
GPK
Q1 26
$117.6M
Q4 25
$112.3M
$2.1B
Q3 25
$106.1M
$2.2B
Q2 25
$102.6M
$2.2B
Q1 25
$103.8M
$2.1B
Q4 24
$109.3M
$2.1B
Q3 24
$104.9M
$2.2B
Q2 24
$98.0M
$2.2B
Net Profit
CLNE
CLNE
GPK
GPK
Q1 26
$-12.4M
Q4 25
$-43.0M
$71.0M
Q3 25
$-23.8M
$142.0M
Q2 25
$-20.2M
$104.0M
Q1 25
$-135.0M
$127.0M
Q4 24
$-30.2M
$138.0M
Q3 24
$-18.2M
$165.0M
Q2 24
$-16.3M
$190.0M
Gross Margin
CLNE
CLNE
GPK
GPK
Q1 26
Q4 25
14.1%
Q3 25
19.6%
Q2 25
18.7%
Q1 25
20.6%
Q4 24
21.4%
Q3 24
22.3%
Q2 24
21.2%
Operating Margin
CLNE
CLNE
GPK
GPK
Q1 26
-2.5%
Q4 25
-9.5%
7.4%
Q3 25
-12.8%
10.7%
Q2 25
-9.0%
8.8%
Q1 25
-121.7%
10.5%
Q4 24
-11.8%
11.4%
Q3 24
-8.1%
12.6%
Q2 24
-5.7%
14.5%
Net Margin
CLNE
CLNE
GPK
GPK
Q1 26
-10.6%
Q4 25
-38.3%
3.4%
Q3 25
-22.4%
6.5%
Q2 25
-19.7%
4.7%
Q1 25
-130.1%
6.0%
Q4 24
-27.6%
6.6%
Q3 24
-17.3%
7.5%
Q2 24
-16.6%
8.5%
EPS (diluted)
CLNE
CLNE
GPK
GPK
Q1 26
Q4 25
$-0.21
$0.24
Q3 25
$-0.11
$0.48
Q2 25
$-0.09
$0.34
Q1 25
$-0.60
$0.42
Q4 24
$-0.14
$0.46
Q3 24
$-0.08
$0.55
Q2 24
$-0.07
$0.62

Balance Sheet & Financial Strength

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

Metric
CLNE
CLNE
GPK
GPK
Cash + ST InvestmentsLiquidity on hand
$70.8M
$261.0M
Total DebtLower is stronger
$54.0K
$5.0B
Stockholders' EquityBook value
$563.7M
$3.3B
Total Assets
$1.0B
$11.8B
Debt / EquityLower = less leverage
0.00×
1.51×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CLNE
CLNE
GPK
GPK
Q1 26
$70.8M
Q4 25
$156.1M
$261.0M
Q3 25
$232.2M
$120.0M
Q2 25
$240.8M
$120.0M
Q1 25
$226.6M
$129.0M
Q4 24
$217.5M
$157.0M
Q3 24
$243.5M
$126.0M
Q2 24
$249.3M
$125.0M
Total Debt
CLNE
CLNE
GPK
GPK
Q1 26
$54.0K
Q4 25
$226.8M
$5.0B
Q3 25
$284.3M
$5.5B
Q2 25
$277.9M
$5.4B
Q1 25
$271.6M
$5.7B
Q4 24
$265.4M
$5.1B
Q3 24
$264.1M
$5.4B
Q2 24
$263.0M
$4.9B
Stockholders' Equity
CLNE
CLNE
GPK
GPK
Q1 26
$563.7M
Q4 25
$559.4M
$3.3B
Q3 25
$585.2M
$3.3B
Q2 25
$590.8M
$3.2B
Q1 25
$596.7M
$3.2B
Q4 24
$713.3M
$3.0B
Q3 24
$724.8M
$3.0B
Q2 24
$723.0M
$2.8B
Total Assets
CLNE
CLNE
GPK
GPK
Q1 26
$1.0B
Q4 25
$1.1B
$11.8B
Q3 25
$1.1B
$11.9B
Q2 25
$1.1B
$11.8B
Q1 25
$1.1B
$11.5B
Q4 24
$1.2B
$11.1B
Q3 24
$1.2B
$11.2B
Q2 24
$1.2B
$10.8B
Debt / Equity
CLNE
CLNE
GPK
GPK
Q1 26
0.00×
Q4 25
0.41×
1.51×
Q3 25
0.49×
1.67×
Q2 25
0.47×
1.68×
Q1 25
0.46×
1.80×
Q4 24
0.37×
1.71×
Q3 24
0.36×
1.79×
Q2 24
0.36×
1.75×

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
GPK
GPK
Operating Cash FlowLast quarter
$521.0M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
7.34×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CLNE
CLNE
GPK
GPK
Q1 26
Q4 25
$13.1M
$521.0M
Q3 25
$13.1M
$227.0M
Q2 25
$35.9M
$267.0M
Q1 25
$23.4M
$-174.0M
Q4 24
$21.9M
$489.0M
Q3 24
$21.4M
$187.0M
Q2 24
$18.8M
$161.0M
Free Cash Flow
CLNE
CLNE
GPK
GPK
Q1 26
Q4 25
$6.5M
Q3 25
$6.5M
Q2 25
$30.9M
Q1 25
$15.9M
Q4 24
$10.3M
Q3 24
$42.0K
Q2 24
$4.8M
FCF Margin
CLNE
CLNE
GPK
GPK
Q1 26
Q4 25
5.8%
Q3 25
6.1%
Q2 25
30.2%
Q1 25
15.4%
Q4 24
9.5%
Q3 24
0.0%
Q2 24
4.9%
Capex Intensity
CLNE
CLNE
GPK
GPK
Q1 26
Q4 25
5.9%
Q3 25
6.2%
Q2 25
4.8%
Q1 25
7.2%
Q4 24
10.5%
Q3 24
20.3%
Q2 24
14.2%
Cash Conversion
CLNE
CLNE
GPK
GPK
Q1 26
Q4 25
7.34×
Q3 25
1.60×
Q2 25
2.57×
Q1 25
-1.37×
Q4 24
3.54×
Q3 24
1.13×
Q2 24
0.85×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CLNE
CLNE

Product revenue$102.9M88%
Service revenue$14.7M12%

GPK
GPK

Americas Paperboard Packaging$1.4B68%
Other$667.0M32%

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