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Side-by-side financial comparison of Ameren (AEE) and Shift4 Payments, Inc. (FOUR). Click either name above to swap in a different company.

Ameren is the larger business by last-quarter revenue ($1.8B vs $1.2B, roughly 1.5× Shift4 Payments, Inc.). Ameren runs the higher net margin — 14.2% vs 3.4%, a 10.8% gap on every dollar of revenue. On growth, Shift4 Payments, Inc. posted the faster year-over-year revenue change (34.0% vs -8.2%). Shift4 Payments, Inc. produced more free cash flow last quarter ($222.5M vs $-54.0M). Over the past eight quarters, Shift4 Payments, Inc.'s revenue compounded faster (29.6% 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...

Shift4 Payments, Inc. is an American payment processing company based in Allentown, Pennsylvania. The company, founded in 1999 by the then 16-year-old Jared Isaacman, processes payments for over 200,000 businesses in the retail, hospitality, leisure, and restaurant industries. Shift4 specializes in commerce technology such as mobile payment software and hardware. The company was publicly listed on the New York Stock Exchange in 2020.

AEE vs FOUR — Head-to-Head

Bigger by revenue
AEE
AEE
1.5× larger
AEE
$1.8B
$1.2B
FOUR
Growing faster (revenue YoY)
FOUR
FOUR
+42.2% gap
FOUR
34.0%
-8.2%
AEE
Higher net margin
AEE
AEE
10.8% more per $
AEE
14.2%
3.4%
FOUR
More free cash flow
FOUR
FOUR
$276.5M more FCF
FOUR
$222.5M
$-54.0M
AEE
Faster 2-yr revenue CAGR
FOUR
FOUR
Annualised
FOUR
29.6%
-0.9%
AEE

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AEE
AEE
FOUR
FOUR
Revenue
$1.8B
$1.2B
Net Profit
$253.0M
$40.2M
Gross Margin
Operating Margin
20.2%
10.8%
Net Margin
14.2%
3.4%
Revenue YoY
-8.2%
34.0%
Net Profit YoY
21.6%
-65.3%
EPS (diluted)
$0.92

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
FOUR
FOUR
Q4 25
$1.8B
$1.2B
Q3 25
$2.7B
$1.2B
Q2 25
$2.2B
$966.2M
Q1 25
$2.1B
$848.3M
Q4 24
$1.9B
$887.0M
Q3 24
$2.2B
$909.2M
Q2 24
$1.7B
$827.0M
Q1 24
$1.8B
$707.4M
Net Profit
AEE
AEE
FOUR
FOUR
Q4 25
$253.0M
$40.2M
Q3 25
$641.0M
$28.1M
Q2 25
$277.0M
$34.0M
Q1 25
$290.0M
$16.7M
Q4 24
$208.0M
$116.0M
Q3 24
$457.0M
$53.8M
Q2 24
$260.0M
$39.2M
Q1 24
$262.0M
$20.6M
Operating Margin
AEE
AEE
FOUR
FOUR
Q4 25
20.2%
10.8%
Q3 25
30.6%
9.7%
Q2 25
18.5%
8.6%
Q1 25
20.5%
3.0%
Q4 24
10.2%
9.7%
Q3 24
27.0%
8.8%
Q2 24
21.3%
7.2%
Q1 24
20.4%
3.0%
Net Margin
AEE
AEE
FOUR
FOUR
Q4 25
14.2%
3.4%
Q3 25
23.7%
2.4%
Q2 25
12.5%
3.5%
Q1 25
13.8%
2.0%
Q4 24
10.7%
13.1%
Q3 24
21.0%
5.9%
Q2 24
15.4%
4.7%
Q1 24
14.4%
2.9%
EPS (diluted)
AEE
AEE
FOUR
FOUR
Q4 25
$0.92
Q3 25
$2.35
Q2 25
$1.01
Q1 25
$1.07
Q4 24
$0.77
Q3 24
$1.70
Q2 24
$0.97
Q1 24
$0.98

Balance Sheet & Financial Strength

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

Metric
AEE
AEE
FOUR
FOUR
Cash + ST InvestmentsLiquidity on hand
$13.0M
$964.0M
Total DebtLower is stronger
$19.4B
$4.5B
Stockholders' EquityBook value
$13.4B
$1.4B
Total Assets
$48.5B
$8.7B
Debt / EquityLower = less leverage
1.45×
3.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEE
AEE
FOUR
FOUR
Q4 25
$13.0M
$964.0M
Q3 25
$9.0M
$1.5B
Q2 25
$11.0M
$3.0B
Q1 25
$23.0M
$1.2B
Q4 24
$7.0M
$1.2B
Q3 24
$17.0M
$1.4B
Q2 24
$19.0M
$205.0M
Q1 24
$85.0M
$522.9M
Total Debt
AEE
AEE
FOUR
FOUR
Q4 25
$19.4B
$4.5B
Q3 25
$4.7B
Q2 25
$3.7B
Q1 25
$2.8B
Q4 24
$17.8B
$2.8B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
AEE
AEE
FOUR
FOUR
Q4 25
$13.4B
$1.4B
Q3 25
$12.8B
$1.7B
Q2 25
$12.3B
$1.6B
Q1 25
$12.2B
$805.2M
Q4 24
$12.1B
$806.6M
Q3 24
$11.8B
$811.8M
Q2 24
$11.5B
$700.8M
Q1 24
$11.4B
$674.5M
Total Assets
AEE
AEE
FOUR
FOUR
Q4 25
$48.5B
$8.7B
Q3 25
$47.4B
$9.0B
Q2 25
$46.6B
$7.0B
Q1 25
$45.7B
$5.0B
Q4 24
$44.6B
$5.0B
Q3 24
$43.3B
$5.0B
Q2 24
$42.3B
$3.5B
Q1 24
$41.3B
$3.4B
Debt / Equity
AEE
AEE
FOUR
FOUR
Q4 25
1.45×
3.15×
Q3 25
2.83×
Q2 25
2.34×
Q1 25
3.53×
Q4 24
1.47×
3.52×
Q3 24
Q2 24
Q1 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
FOUR
FOUR
Operating Cash FlowLast quarter
$956.0M
$223.7M
Free Cash FlowOCF − Capex
$-54.0M
$222.5M
FCF MarginFCF / Revenue
-3.0%
18.7%
Capex IntensityCapex / Revenue
56.7%
0.1%
Cash ConversionOCF / Net Profit
3.78×
5.56×
TTM Free Cash FlowTrailing 4 quarters
$-775.0M
$624.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEE
AEE
FOUR
FOUR
Q4 25
$956.0M
$223.7M
Q3 25
$1.1B
$171.8M
Q2 25
$862.0M
$141.9M
Q1 25
$431.0M
$96.6M
Q4 24
$817.0M
$145.4M
Q3 24
$897.0M
$182.1M
Q2 24
$557.0M
$116.1M
Q1 24
$492.0M
$56.7M
Free Cash Flow
AEE
AEE
FOUR
FOUR
Q4 25
$-54.0M
$222.5M
Q3 25
$116.0M
$165.4M
Q2 25
$-204.0M
$141.0M
Q1 25
$-633.0M
$95.1M
Q4 24
$-473.0M
$143.8M
Q3 24
$-240.0M
$180.1M
Q2 24
$-445.0M
$113.9M
Q1 24
$-398.0M
$55.4M
FCF Margin
AEE
AEE
FOUR
FOUR
Q4 25
-3.0%
18.7%
Q3 25
4.3%
14.1%
Q2 25
-9.2%
14.6%
Q1 25
-30.2%
11.2%
Q4 24
-24.4%
16.2%
Q3 24
-11.0%
19.8%
Q2 24
-26.3%
13.8%
Q1 24
-21.9%
7.8%
Capex Intensity
AEE
AEE
FOUR
FOUR
Q4 25
56.7%
0.1%
Q3 25
36.6%
0.5%
Q2 25
48.0%
0.1%
Q1 25
50.7%
0.2%
Q4 24
66.5%
0.2%
Q3 24
52.3%
0.2%
Q2 24
59.2%
0.3%
Q1 24
49.0%
0.2%
Cash Conversion
AEE
AEE
FOUR
FOUR
Q4 25
3.78×
5.56×
Q3 25
1.72×
6.11×
Q2 25
3.11×
4.17×
Q1 25
1.49×
5.78×
Q4 24
3.93×
1.25×
Q3 24
1.96×
3.38×
Q2 24
2.14×
2.96×
Q1 24
1.88×
2.75×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AEE
AEE

Segment breakdown not available.

FOUR
FOUR

Payments Based Revenue$788.8M66%
Other$255.0M21%
Subscription And Other Revenues$144.8M12%

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