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

Ameren is the larger business by last-quarter revenue ($1.8B vs $377.1M, roughly 4.7× Archrock, Inc.). Archrock, Inc. runs the higher net margin — 31.0% vs 14.2%, a 16.8% gap on every dollar of revenue. On growth, Archrock, Inc. posted the faster year-over-year revenue change (15.5% vs -8.2%). Archrock, Inc. produced more free cash flow last quarter ($126.7M vs $-54.0M). Over the past eight quarters, Archrock, Inc.'s revenue compounded faster (18.5% 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...

Archrock, Inc. is a leading provider of natural gas compression services and equipment solutions for the North American oil and gas sector. Its core offerings include compression system rental, maintenance, aftermarket support, and sales, serving upstream production, midstream transportation and natural gas processing segments.

AEE vs AROC — Head-to-Head

Bigger by revenue
AEE
AEE
4.7× larger
AEE
$1.8B
$377.1M
AROC
Growing faster (revenue YoY)
AROC
AROC
+23.7% gap
AROC
15.5%
-8.2%
AEE
Higher net margin
AROC
AROC
16.8% more per $
AROC
31.0%
14.2%
AEE
More free cash flow
AROC
AROC
$180.7M more FCF
AROC
$126.7M
$-54.0M
AEE
Faster 2-yr revenue CAGR
AROC
AROC
Annualised
AROC
18.5%
-0.9%
AEE

Income Statement — Q4 2025 vs Q4 2025

Metric
AEE
AEE
AROC
AROC
Revenue
$1.8B
$377.1M
Net Profit
$253.0M
$116.8M
Gross Margin
53.0%
Operating Margin
20.2%
39.4%
Net Margin
14.2%
31.0%
Revenue YoY
-8.2%
15.5%
Net Profit YoY
21.6%
95.4%
EPS (diluted)
$0.92
$0.67

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
AROC
AROC
Q4 25
$1.8B
$377.1M
Q3 25
$2.7B
$382.4M
Q2 25
$2.2B
$383.2M
Q1 25
$2.1B
$347.2M
Q4 24
$1.9B
$326.4M
Q3 24
$2.2B
$292.2M
Q2 24
$1.7B
$270.5M
Q1 24
$1.8B
$268.5M
Net Profit
AEE
AEE
AROC
AROC
Q4 25
$253.0M
$116.8M
Q3 25
$641.0M
$71.2M
Q2 25
$277.0M
$63.4M
Q1 25
$290.0M
$70.8M
Q4 24
$208.0M
$59.8M
Q3 24
$457.0M
$37.5M
Q2 24
$260.0M
$34.4M
Q1 24
$262.0M
$40.5M
Gross Margin
AEE
AEE
AROC
AROC
Q4 25
53.0%
Q3 25
48.5%
Q2 25
45.4%
Q1 25
47.4%
Q4 24
46.3%
Q3 24
44.4%
Q2 24
41.5%
Q1 24
42.1%
Operating Margin
AEE
AEE
AROC
AROC
Q4 25
20.2%
39.4%
Q3 25
30.6%
25.3%
Q2 25
18.5%
22.5%
Q1 25
20.5%
26.5%
Q4 24
10.2%
24.0%
Q3 24
27.0%
18.1%
Q2 24
21.3%
17.6%
Q1 24
20.4%
20.0%
Net Margin
AEE
AEE
AROC
AROC
Q4 25
14.2%
31.0%
Q3 25
23.7%
18.6%
Q2 25
12.5%
16.6%
Q1 25
13.8%
20.4%
Q4 24
10.7%
18.3%
Q3 24
21.0%
12.8%
Q2 24
15.4%
12.7%
Q1 24
14.4%
15.1%
EPS (diluted)
AEE
AEE
AROC
AROC
Q4 25
$0.92
$0.67
Q3 25
$2.35
$0.40
Q2 25
$1.01
$0.36
Q1 25
$1.07
$0.40
Q4 24
$0.77
$0.35
Q3 24
$1.70
$0.22
Q2 24
$0.97
$0.22
Q1 24
$0.98
$0.26

Balance Sheet & Financial Strength

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

Metric
AEE
AEE
AROC
AROC
Cash + ST InvestmentsLiquidity on hand
$13.0M
$1.6M
Total DebtLower is stronger
$19.4B
Stockholders' EquityBook value
$13.4B
$1.5B
Total Assets
$48.5B
$4.3B
Debt / EquityLower = less leverage
1.45×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEE
AEE
AROC
AROC
Q4 25
$13.0M
$1.6M
Q3 25
$9.0M
$4.1M
Q2 25
$11.0M
$5.9M
Q1 25
$23.0M
$4.8M
Q4 24
$7.0M
$4.4M
Q3 24
$17.0M
$3.7M
Q2 24
$19.0M
$919.0K
Q1 24
$85.0M
$1.2M
Total Debt
AEE
AEE
AROC
AROC
Q4 25
$19.4B
Q3 25
Q2 25
Q1 25
Q4 24
$17.8B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
AEE
AEE
AROC
AROC
Q4 25
$13.4B
$1.5B
Q3 25
$12.8B
$1.4B
Q2 25
$12.3B
$1.4B
Q1 25
$12.2B
$1.3B
Q4 24
$12.1B
$1.3B
Q3 24
$11.8B
$1.3B
Q2 24
$11.5B
$894.5M
Q1 24
$11.4B
$882.1M
Total Assets
AEE
AEE
AROC
AROC
Q4 25
$48.5B
$4.3B
Q3 25
$47.4B
$4.4B
Q2 25
$46.6B
$4.4B
Q1 25
$45.7B
$4.0B
Q4 24
$44.6B
$3.8B
Q3 24
$43.3B
$3.8B
Q2 24
$42.3B
$2.7B
Q1 24
$41.3B
$2.7B
Debt / Equity
AEE
AEE
AROC
AROC
Q4 25
1.45×
Q3 25
Q2 25
Q1 25
Q4 24
1.47×
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
AROC
AROC
Operating Cash FlowLast quarter
$956.0M
$214.5M
Free Cash FlowOCF − Capex
$-54.0M
$126.7M
FCF MarginFCF / Revenue
-3.0%
33.6%
Capex IntensityCapex / Revenue
56.7%
23.3%
Cash ConversionOCF / Net Profit
3.78×
1.84×
TTM Free Cash FlowTrailing 4 quarters
$-775.0M
$119.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEE
AEE
AROC
AROC
Q4 25
$956.0M
$214.5M
Q3 25
$1.1B
$164.5M
Q2 25
$862.0M
$127.5M
Q1 25
$431.0M
$115.6M
Q4 24
$817.0M
$124.3M
Q3 24
$897.0M
$96.9M
Q2 24
$557.0M
$70.7M
Q1 24
$492.0M
$137.7M
Free Cash Flow
AEE
AEE
AROC
AROC
Q4 25
$-54.0M
$126.7M
Q3 25
$116.0M
$29.5M
Q2 25
$-204.0M
$16.0M
Q1 25
$-633.0M
$-52.5M
Q4 24
$-473.0M
$26.4M
Q3 24
$-240.0M
$26.9M
Q2 24
$-445.0M
$-20.6M
Q1 24
$-398.0M
$37.9M
FCF Margin
AEE
AEE
AROC
AROC
Q4 25
-3.0%
33.6%
Q3 25
4.3%
7.7%
Q2 25
-9.2%
4.2%
Q1 25
-30.2%
-15.1%
Q4 24
-24.4%
8.1%
Q3 24
-11.0%
9.2%
Q2 24
-26.3%
-7.6%
Q1 24
-21.9%
14.1%
Capex Intensity
AEE
AEE
AROC
AROC
Q4 25
56.7%
23.3%
Q3 25
36.6%
35.3%
Q2 25
48.0%
29.1%
Q1 25
50.7%
48.4%
Q4 24
66.5%
30.0%
Q3 24
52.3%
24.0%
Q2 24
59.2%
33.7%
Q1 24
49.0%
37.2%
Cash Conversion
AEE
AEE
AROC
AROC
Q4 25
3.78×
1.84×
Q3 25
1.72×
2.31×
Q2 25
3.11×
2.01×
Q1 25
1.49×
1.63×
Q4 24
3.93×
2.08×
Q3 24
1.96×
2.58×
Q2 24
2.14×
2.05×
Q1 24
1.88×
3.40×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AEE
AEE

Segment breakdown not available.

AROC
AROC

Horsepower Group Three$112.6M30%
Horsepower Group Two$108.5M29%
Horsepower Group One$105.9M28%
Services$32.9M9%
Over Counter Parts And Component Sales$17.0M5%
Transferred At Point In Time$1.4M0%

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