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Side-by-side financial comparison of Ameren (AEE) and First Solar (FSLR). Click either name above to swap in a different company.

Ameren is the larger business by last-quarter revenue ($1.8B vs $1.7B, roughly 1.1× First Solar). First Solar runs the higher net margin — 31.0% vs 14.2%, a 16.8% gap on every dollar of revenue. On growth, First Solar posted the faster year-over-year revenue change (11.1% vs -8.2%). Over the past eight quarters, First Solar's revenue compounded faster (29.0% 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...

First Solar, Inc. is a publicly traded American manufacturer of solar panels. First Solar uses rigid thin-film modules for its solar panels, and produces CdTe panels using cadmium telluride (CdTe) as a semiconductor. The company was founded in 1990 by inventor Harold McMaster as Solar Cells, Inc. In 1999 it was purchased by True North Partners, LLC, which rebranded it as First Solar, Inc. It provides end-of-life panel recycling at each of its manufacturing facilities.

AEE vs FSLR — Head-to-Head

Bigger by revenue
AEE
AEE
1.1× larger
AEE
$1.8B
$1.7B
FSLR
Growing faster (revenue YoY)
FSLR
FSLR
+19.3% gap
FSLR
11.1%
-8.2%
AEE
Higher net margin
FSLR
FSLR
16.8% more per $
FSLR
31.0%
14.2%
AEE
Faster 2-yr revenue CAGR
FSLR
FSLR
Annualised
FSLR
29.0%
-0.9%
AEE

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AEE
AEE
FSLR
FSLR
Revenue
$1.8B
$1.7B
Net Profit
$253.0M
$520.9M
Gross Margin
39.5%
Operating Margin
20.2%
32.6%
Net Margin
14.2%
31.0%
Revenue YoY
-8.2%
11.1%
Net Profit YoY
21.6%
32.5%
EPS (diluted)
$0.92
$4.84

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
FSLR
FSLR
Q1 26
$1.7B
Q4 25
$1.8B
$1.7B
Q3 25
$2.7B
$1.6B
Q2 25
$2.2B
$1.1B
Q1 25
$2.1B
$844.6M
Q4 24
$1.9B
$1.5B
Q3 24
$2.2B
$887.7M
Q2 24
$1.7B
$1.0B
Net Profit
AEE
AEE
FSLR
FSLR
Q1 26
$520.9M
Q4 25
$253.0M
$520.9M
Q3 25
$641.0M
$455.9M
Q2 25
$277.0M
$341.9M
Q1 25
$290.0M
$209.5M
Q4 24
$208.0M
$393.1M
Q3 24
$457.0M
$313.0M
Q2 24
$260.0M
$349.4M
Gross Margin
AEE
AEE
FSLR
FSLR
Q1 26
39.5%
Q4 25
39.5%
Q3 25
38.3%
Q2 25
45.6%
Q1 25
40.8%
Q4 24
37.5%
Q3 24
50.2%
Q2 24
49.4%
Operating Margin
AEE
AEE
FSLR
FSLR
Q1 26
32.6%
Q4 25
20.2%
32.6%
Q3 25
30.6%
29.2%
Q2 25
18.5%
33.0%
Q1 25
20.5%
26.2%
Q4 24
10.2%
30.2%
Q3 24
27.0%
36.3%
Q2 24
21.3%
36.9%
Net Margin
AEE
AEE
FSLR
FSLR
Q1 26
31.0%
Q4 25
14.2%
31.0%
Q3 25
23.7%
28.6%
Q2 25
12.5%
31.2%
Q1 25
13.8%
24.8%
Q4 24
10.7%
26.0%
Q3 24
21.0%
35.3%
Q2 24
15.4%
34.6%
EPS (diluted)
AEE
AEE
FSLR
FSLR
Q1 26
$4.84
Q4 25
$0.92
$4.84
Q3 25
$2.35
$4.24
Q2 25
$1.01
$3.18
Q1 25
$1.07
$1.95
Q4 24
$0.77
$3.66
Q3 24
$1.70
$2.91
Q2 24
$0.97
$3.25

Balance Sheet & Financial Strength

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

Metric
AEE
AEE
FSLR
FSLR
Cash + ST InvestmentsLiquidity on hand
$13.0M
$2.8B
Total DebtLower is stronger
$19.4B
$498.6M
Stockholders' EquityBook value
$13.4B
$9.5B
Total Assets
$48.5B
$13.3B
Debt / EquityLower = less leverage
1.45×
0.05×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEE
AEE
FSLR
FSLR
Q1 26
$2.8B
Q4 25
$13.0M
$2.8B
Q3 25
$9.0M
$2.0B
Q2 25
$11.0M
$1.1B
Q1 25
$23.0M
$837.6M
Q4 24
$7.0M
$1.6B
Q3 24
$17.0M
$1.0B
Q2 24
$19.0M
$1.7B
Total Debt
AEE
AEE
FSLR
FSLR
Q1 26
$498.6M
Q4 25
$19.4B
Q3 25
Q2 25
Q1 25
Q4 24
$17.8B
Q3 24
Q2 24
Stockholders' Equity
AEE
AEE
FSLR
FSLR
Q1 26
$9.5B
Q4 25
$13.4B
$9.5B
Q3 25
$12.8B
$9.0B
Q2 25
$12.3B
$8.5B
Q1 25
$12.2B
$8.2B
Q4 24
$12.1B
$8.0B
Q3 24
$11.8B
$7.6B
Q2 24
$11.5B
$7.3B
Total Assets
AEE
AEE
FSLR
FSLR
Q1 26
$13.3B
Q4 25
$48.5B
$13.3B
Q3 25
$47.4B
$13.5B
Q2 25
$46.6B
$12.9B
Q1 25
$45.7B
$12.1B
Q4 24
$44.6B
$12.1B
Q3 24
$43.3B
$11.4B
Q2 24
$42.3B
$11.0B
Debt / Equity
AEE
AEE
FSLR
FSLR
Q1 26
0.05×
Q4 25
1.45×
Q3 25
Q2 25
Q1 25
Q4 24
1.47×
Q3 24
Q2 24

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
FSLR
FSLR
Operating Cash FlowLast quarter
$956.0M
$2.1B
Free Cash FlowOCF − Capex
$-54.0M
FCF MarginFCF / Revenue
-3.0%
Capex IntensityCapex / Revenue
56.7%
Cash ConversionOCF / Net Profit
3.78×
3.95×
TTM Free Cash FlowTrailing 4 quarters
$-775.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEE
AEE
FSLR
FSLR
Q1 26
$2.1B
Q4 25
$956.0M
$1.2B
Q3 25
$1.1B
$1.3B
Q2 25
$862.0M
$149.6M
Q1 25
$431.0M
$-608.0M
Q4 24
$817.0M
$811.0M
Q3 24
$897.0M
$-53.7M
Q2 24
$557.0M
$193.0M
Free Cash Flow
AEE
AEE
FSLR
FSLR
Q1 26
Q4 25
$-54.0M
$1.1B
Q3 25
$116.0M
$1.1B
Q2 25
$-204.0M
$-138.6M
Q1 25
$-633.0M
$-813.9M
Q4 24
$-473.0M
$497.5M
Q3 24
$-240.0M
$-487.7M
Q2 24
$-445.0M
$-172.1M
FCF Margin
AEE
AEE
FSLR
FSLR
Q1 26
Q4 25
-3.0%
63.6%
Q3 25
4.3%
67.1%
Q2 25
-9.2%
-12.6%
Q1 25
-30.2%
-96.4%
Q4 24
-24.4%
32.9%
Q3 24
-11.0%
-54.9%
Q2 24
-26.3%
-17.0%
Capex Intensity
AEE
AEE
FSLR
FSLR
Q1 26
Q4 25
56.7%
10.2%
Q3 25
36.6%
12.8%
Q2 25
48.0%
26.3%
Q1 25
50.7%
24.4%
Q4 24
66.5%
20.7%
Q3 24
52.3%
48.9%
Q2 24
59.2%
36.1%
Cash Conversion
AEE
AEE
FSLR
FSLR
Q1 26
3.95×
Q4 25
3.78×
2.38×
Q3 25
1.72×
2.79×
Q2 25
3.11×
0.44×
Q1 25
1.49×
-2.90×
Q4 24
3.93×
2.06×
Q3 24
1.96×
-0.17×
Q2 24
2.14×
0.55×

Financial Flow Comparison

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

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