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Side-by-side financial comparison of Ameren (AEE) and Clean Energy Fuels Corp. (CLNE). Click either name above to swap in a different company.

Ameren is the larger business by last-quarter revenue ($1.8B vs $112.3M, roughly 15.9× Clean Energy Fuels Corp.). Ameren runs the higher net margin — 14.2% vs -38.3%, a 52.5% gap on every dollar of revenue. On growth, Clean Energy Fuels Corp. posted the faster year-over-year revenue change (2.7% vs -8.2%). Clean Energy Fuels Corp. produced more free cash flow last quarter ($6.5M vs $-54.0M). Over the past eight quarters, Clean Energy Fuels Corp.'s revenue compounded faster (4.1% CAGR vs -0.9%).

Ameren Corporation, together with its subsidiaries, operates as a public utility holding company in the United States. It operates through four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. The company engages in the rate-regulated electric generation, transmission, and distribution activities; and rate-regulated natural gas distribution and transmission businesses. It primarily generates electricity through coal, nucle...

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...

AEE vs CLNE — Head-to-Head

Bigger by revenue
AEE
AEE
15.9× larger
AEE
$1.8B
$112.3M
CLNE
Growing faster (revenue YoY)
CLNE
CLNE
+10.9% gap
CLNE
2.7%
-8.2%
AEE
Higher net margin
AEE
AEE
52.5% more per $
AEE
14.2%
-38.3%
CLNE
More free cash flow
CLNE
CLNE
$60.5M more FCF
CLNE
$6.5M
$-54.0M
AEE
Faster 2-yr revenue CAGR
CLNE
CLNE
Annualised
CLNE
4.1%
-0.9%
AEE

Income Statement — Q4 2025 vs Q4 2025

Metric
AEE
AEE
CLNE
CLNE
Revenue
$1.8B
$112.3M
Net Profit
$253.0M
$-43.0M
Gross Margin
Operating Margin
20.2%
-9.5%
Net Margin
14.2%
-38.3%
Revenue YoY
-8.2%
2.7%
Net Profit YoY
21.6%
-42.6%
EPS (diluted)
$0.92
$-0.21

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
AEE
AEE
CLNE
CLNE
Q4 25
$1.8B
$112.3M
Q3 25
$2.7B
$106.1M
Q2 25
$2.2B
$102.6M
Q1 25
$2.1B
$103.8M
Q4 24
$1.9B
$109.3M
Q3 24
$2.2B
$104.9M
Q2 24
$1.7B
$98.0M
Q1 24
$1.8B
$103.7M
Net Profit
AEE
AEE
CLNE
CLNE
Q4 25
$253.0M
$-43.0M
Q3 25
$641.0M
$-23.8M
Q2 25
$277.0M
$-20.2M
Q1 25
$290.0M
$-135.0M
Q4 24
$208.0M
$-30.2M
Q3 24
$457.0M
$-18.2M
Q2 24
$260.0M
$-16.3M
Q1 24
$262.0M
$-18.4M
Operating Margin
AEE
AEE
CLNE
CLNE
Q4 25
20.2%
-9.5%
Q3 25
30.6%
-12.8%
Q2 25
18.5%
-9.0%
Q1 25
20.5%
-121.7%
Q4 24
10.2%
-11.8%
Q3 24
27.0%
-8.1%
Q2 24
21.3%
-5.7%
Q1 24
20.4%
-9.0%
Net Margin
AEE
AEE
CLNE
CLNE
Q4 25
14.2%
-38.3%
Q3 25
23.7%
-22.4%
Q2 25
12.5%
-19.7%
Q1 25
13.8%
-130.1%
Q4 24
10.7%
-27.6%
Q3 24
21.0%
-17.3%
Q2 24
15.4%
-16.6%
Q1 24
14.4%
-17.8%
EPS (diluted)
AEE
AEE
CLNE
CLNE
Q4 25
$0.92
$-0.21
Q3 25
$2.35
$-0.11
Q2 25
$1.01
$-0.09
Q1 25
$1.07
$-0.60
Q4 24
$0.77
$-0.14
Q3 24
$1.70
$-0.08
Q2 24
$0.97
$-0.07
Q1 24
$0.98
$-0.08

Balance Sheet & Financial Strength

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

Metric
AEE
AEE
CLNE
CLNE
Cash + ST InvestmentsLiquidity on hand
$13.0M
$156.1M
Total DebtLower is stronger
$19.4B
$226.8M
Stockholders' EquityBook value
$13.4B
$559.4M
Total Assets
$48.5B
$1.1B
Debt / EquityLower = less leverage
1.45×
0.41×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEE
AEE
CLNE
CLNE
Q4 25
$13.0M
$156.1M
Q3 25
$9.0M
$232.2M
Q2 25
$11.0M
$240.8M
Q1 25
$23.0M
$226.6M
Q4 24
$7.0M
$217.5M
Q3 24
$17.0M
$243.5M
Q2 24
$19.0M
$249.3M
Q1 24
$85.0M
$248.9M
Total Debt
AEE
AEE
CLNE
CLNE
Q4 25
$19.4B
$226.8M
Q3 25
$284.3M
Q2 25
$277.9M
Q1 25
$271.6M
Q4 24
$17.8B
$265.4M
Q3 24
$264.1M
Q2 24
$263.0M
Q1 24
$262.0M
Stockholders' Equity
AEE
AEE
CLNE
CLNE
Q4 25
$13.4B
$559.4M
Q3 25
$12.8B
$585.2M
Q2 25
$12.3B
$590.8M
Q1 25
$12.2B
$596.7M
Q4 24
$12.1B
$713.3M
Q3 24
$11.8B
$724.8M
Q2 24
$11.5B
$723.0M
Q1 24
$11.4B
$722.9M
Total Assets
AEE
AEE
CLNE
CLNE
Q4 25
$48.5B
$1.1B
Q3 25
$47.4B
$1.1B
Q2 25
$46.6B
$1.1B
Q1 25
$45.7B
$1.1B
Q4 24
$44.6B
$1.2B
Q3 24
$43.3B
$1.2B
Q2 24
$42.3B
$1.2B
Q1 24
$41.3B
$1.2B
Debt / Equity
AEE
AEE
CLNE
CLNE
Q4 25
1.45×
0.41×
Q3 25
0.49×
Q2 25
0.47×
Q1 25
0.46×
Q4 24
1.47×
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
AEE
AEE
CLNE
CLNE
Operating Cash FlowLast quarter
$956.0M
$13.1M
Free Cash FlowOCF − Capex
$-54.0M
$6.5M
FCF MarginFCF / Revenue
-3.0%
5.8%
Capex IntensityCapex / Revenue
56.7%
5.9%
Cash ConversionOCF / Net Profit
3.78×
TTM Free Cash FlowTrailing 4 quarters
$-775.0M
$59.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEE
AEE
CLNE
CLNE
Q4 25
$956.0M
$13.1M
Q3 25
$1.1B
$13.1M
Q2 25
$862.0M
$35.9M
Q1 25
$431.0M
$23.4M
Q4 24
$817.0M
$21.9M
Q3 24
$897.0M
$21.4M
Q2 24
$557.0M
$18.8M
Q1 24
$492.0M
$2.6M
Free Cash Flow
AEE
AEE
CLNE
CLNE
Q4 25
$-54.0M
$6.5M
Q3 25
$116.0M
$6.5M
Q2 25
$-204.0M
$30.9M
Q1 25
$-633.0M
$15.9M
Q4 24
$-473.0M
$10.3M
Q3 24
$-240.0M
$42.0K
Q2 24
$-445.0M
$4.8M
Q1 24
$-398.0M
$-15.6M
FCF Margin
AEE
AEE
CLNE
CLNE
Q4 25
-3.0%
5.8%
Q3 25
4.3%
6.1%
Q2 25
-9.2%
30.2%
Q1 25
-30.2%
15.4%
Q4 24
-24.4%
9.5%
Q3 24
-11.0%
0.0%
Q2 24
-26.3%
4.9%
Q1 24
-21.9%
-15.1%
Capex Intensity
AEE
AEE
CLNE
CLNE
Q4 25
56.7%
5.9%
Q3 25
36.6%
6.2%
Q2 25
48.0%
4.8%
Q1 25
50.7%
7.2%
Q4 24
66.5%
10.5%
Q3 24
52.3%
20.3%
Q2 24
59.2%
14.2%
Q1 24
49.0%
17.6%
Cash Conversion
AEE
AEE
CLNE
CLNE
Q4 25
3.78×
Q3 25
1.72×
Q2 25
3.11×
Q1 25
1.49×
Q4 24
3.93×
Q3 24
1.96×
Q2 24
2.14×
Q1 24
1.88×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AEE
AEE

Segment breakdown not available.

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%

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