vs

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

CSX Corporation is the larger business by last-quarter revenue ($3.5B vs $1.8B, roughly 2.0× Ameren). CSX Corporation runs the higher net margin — 23.2% vs 14.2%, a 9.0% gap on every dollar of revenue. On growth, CSX Corporation posted the faster year-over-year revenue change (1.7% vs -8.2%). CSX Corporation produced more free cash flow last quarter ($793.0M vs $-54.0M). Over the past eight quarters, Ameren's revenue compounded faster (-0.9% CAGR vs -3.0%).

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...

CSX Transportation, known colloquially as simply CSX, is a Class I freight railroad company operating in the Eastern United States and the Canadian provinces of Ontario and Quebec. Operating about 21,000 route miles (34,000 km) of track, it is the leading subsidiary of CSX Corporation, a Fortune 500 company headquartered in Jacksonville, Florida.

AEE vs CSX — Head-to-Head

Bigger by revenue
CSX
CSX
2.0× larger
CSX
$3.5B
$1.8B
AEE
Growing faster (revenue YoY)
CSX
CSX
+9.9% gap
CSX
1.7%
-8.2%
AEE
Higher net margin
CSX
CSX
9.0% more per $
CSX
23.2%
14.2%
AEE
More free cash flow
CSX
CSX
$847.0M more FCF
CSX
$793.0M
$-54.0M
AEE
Faster 2-yr revenue CAGR
AEE
AEE
Annualised
AEE
-0.9%
-3.0%
CSX

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AEE
AEE
CSX
CSX
Revenue
$1.8B
$3.5B
Net Profit
$253.0M
$807.0M
Gross Margin
Operating Margin
20.2%
36.0%
Net Margin
14.2%
23.2%
Revenue YoY
-8.2%
1.7%
Net Profit YoY
21.6%
24.9%
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
CSX
CSX
Q1 26
$3.5B
Q4 25
$1.8B
$3.5B
Q3 25
$2.7B
$3.6B
Q2 25
$2.2B
$3.6B
Q1 25
$2.1B
$3.4B
Q4 24
$1.9B
$3.5B
Q3 24
$2.2B
$3.6B
Q2 24
$1.7B
$3.7B
Net Profit
AEE
AEE
CSX
CSX
Q1 26
$807.0M
Q4 25
$253.0M
$720.0M
Q3 25
$641.0M
$694.0M
Q2 25
$277.0M
$829.0M
Q1 25
$290.0M
$646.0M
Q4 24
$208.0M
$720.0M
Q3 24
$457.0M
$894.0M
Q2 24
$260.0M
$963.0M
Operating Margin
AEE
AEE
CSX
CSX
Q1 26
36.0%
Q4 25
20.2%
31.6%
Q3 25
30.6%
30.3%
Q2 25
18.5%
35.9%
Q1 25
20.5%
30.4%
Q4 24
10.2%
30.8%
Q3 24
27.0%
37.4%
Q2 24
21.3%
39.1%
Net Margin
AEE
AEE
CSX
CSX
Q1 26
23.2%
Q4 25
14.2%
20.5%
Q3 25
23.7%
19.3%
Q2 25
12.5%
23.2%
Q1 25
13.8%
18.9%
Q4 24
10.7%
20.3%
Q3 24
21.0%
24.7%
Q2 24
15.4%
26.0%
EPS (diluted)
AEE
AEE
CSX
CSX
Q1 26
Q4 25
$0.92
$0.39
Q3 25
$2.35
$0.37
Q2 25
$1.01
$0.44
Q1 25
$1.07
$0.34
Q4 24
$0.77
$0.38
Q3 24
$1.70
$0.46
Q2 24
$0.97
$0.49

Balance Sheet & Financial Strength

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

Metric
AEE
AEE
CSX
CSX
Cash + ST InvestmentsLiquidity on hand
$13.0M
$1.1B
Total DebtLower is stronger
$19.4B
$18.9B
Stockholders' EquityBook value
$13.4B
$13.6B
Total Assets
$48.5B
$44.2B
Debt / EquityLower = less leverage
1.45×
1.39×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEE
AEE
CSX
CSX
Q1 26
$1.1B
Q4 25
$13.0M
$5.0M
Q3 25
$9.0M
$6.0M
Q2 25
$11.0M
$6.0M
Q1 25
$23.0M
$8.0M
Q4 24
$7.0M
$72.0M
Q3 24
$17.0M
$12.0M
Q2 24
$19.0M
$4.0M
Total Debt
AEE
AEE
CSX
CSX
Q1 26
$18.9B
Q4 25
$19.4B
$18.2B
Q3 25
$18.6B
Q2 25
$18.6B
Q1 25
$18.5B
Q4 24
$17.8B
$17.9B
Q3 24
$18.5B
Q2 24
$18.0B
Stockholders' Equity
AEE
AEE
CSX
CSX
Q1 26
$13.6B
Q4 25
$13.4B
$13.2B
Q3 25
$12.8B
$12.8B
Q2 25
$12.3B
$12.4B
Q1 25
$12.2B
$12.2B
Q4 24
$12.1B
$12.5B
Q3 24
$11.8B
$12.9B
Q2 24
$11.5B
$12.6B
Total Assets
AEE
AEE
CSX
CSX
Q1 26
$44.2B
Q4 25
$48.5B
$43.7B
Q3 25
$47.4B
$43.3B
Q2 25
$46.6B
$42.9B
Q1 25
$45.7B
$43.2B
Q4 24
$44.6B
$42.8B
Q3 24
$43.3B
$43.1B
Q2 24
$42.3B
$42.4B
Debt / Equity
AEE
AEE
CSX
CSX
Q1 26
1.39×
Q4 25
1.45×
1.38×
Q3 25
1.45×
Q2 25
1.50×
Q1 25
1.52×
Q4 24
1.47×
1.43×
Q3 24
1.43×
Q2 24
1.42×

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
CSX
CSX
Operating Cash FlowLast quarter
$956.0M
$1.3B
Free Cash FlowOCF − Capex
$-54.0M
$793.0M
FCF MarginFCF / Revenue
-3.0%
22.8%
Capex IntensityCapex / Revenue
56.7%
Cash ConversionOCF / Net Profit
3.78×
1.58×
TTM Free Cash FlowTrailing 4 quarters
$-775.0M
$2.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEE
AEE
CSX
CSX
Q1 26
$1.3B
Q4 25
$956.0M
$1.4B
Q3 25
$1.1B
$1.3B
Q2 25
$862.0M
$635.0M
Q1 25
$431.0M
$1.3B
Q4 24
$817.0M
$1.4B
Q3 24
$897.0M
$1.7B
Q2 24
$557.0M
$1.1B
Free Cash Flow
AEE
AEE
CSX
CSX
Q1 26
$793.0M
Q4 25
$-54.0M
$709.0M
Q3 25
$116.0M
$607.0M
Q2 25
$-204.0M
$-141.0M
Q1 25
$-633.0M
$536.0M
Q4 24
$-473.0M
$550.0M
Q3 24
$-240.0M
$1.1B
Q2 24
$-445.0M
$547.0M
FCF Margin
AEE
AEE
CSX
CSX
Q1 26
22.8%
Q4 25
-3.0%
20.2%
Q3 25
4.3%
16.9%
Q2 25
-9.2%
-3.9%
Q1 25
-30.2%
15.7%
Q4 24
-24.4%
15.5%
Q3 24
-11.0%
29.3%
Q2 24
-26.3%
14.8%
Capex Intensity
AEE
AEE
CSX
CSX
Q1 26
Q4 25
56.7%
19.3%
Q3 25
36.6%
20.4%
Q2 25
48.0%
21.7%
Q1 25
50.7%
21.0%
Q4 24
66.5%
23.7%
Q3 24
52.3%
17.3%
Q2 24
59.2%
14.6%
Cash Conversion
AEE
AEE
CSX
CSX
Q1 26
1.58×
Q4 25
3.78×
1.93×
Q3 25
1.72×
1.93×
Q2 25
3.11×
0.77×
Q1 25
1.49×
1.94×
Q4 24
3.93×
1.93×
Q3 24
1.96×
1.89×
Q2 24
2.14×
1.13×

Financial Flow Comparison

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

Related Comparisons