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

Ameren is the larger business by last-quarter revenue ($1.8B vs $1.3B, roughly 1.4× Rivian Automotive, Inc.). Ameren runs the higher net margin — 14.2% vs -63.1%, a 77.3% gap on every dollar of revenue. On growth, Ameren posted the faster year-over-year revenue change (-8.2% vs -25.8%). Ameren produced more free cash flow last quarter ($-54.0M vs $-1.1B). Over the past eight quarters, Rivian Automotive, Inc.'s revenue compounded faster (3.3% 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...

Rivian Automotive, Inc., is an American electric vehicle manufacturer and automotive technology company founded in 2009. It produces an electric sport utility vehicle (SUV), a pickup truck on a "skateboard" platform that can support future vehicles or be adopted by other companies, and an electric delivery van, the Rivian EDV. It started deliveries of its R1T pickup truck in late 2021. The company planned to build an exclusive charging network in the United States and Canada by the end of 2023.

AEE vs RIVN — Head-to-Head

Bigger by revenue
AEE
AEE
1.4× larger
AEE
$1.8B
$1.3B
RIVN
Growing faster (revenue YoY)
AEE
AEE
+17.6% gap
AEE
-8.2%
-25.8%
RIVN
Higher net margin
AEE
AEE
77.3% more per $
AEE
14.2%
-63.1%
RIVN
More free cash flow
AEE
AEE
$1.1B more FCF
AEE
$-54.0M
$-1.1B
RIVN
Faster 2-yr revenue CAGR
RIVN
RIVN
Annualised
RIVN
3.3%
-0.9%
AEE

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AEE
AEE
RIVN
RIVN
Revenue
$1.8B
$1.3B
Net Profit
$253.0M
$-811.0M
Gross Margin
9.3%
Operating Margin
20.2%
-64.8%
Net Margin
14.2%
-63.1%
Revenue YoY
-8.2%
-25.8%
Net Profit YoY
21.6%
-9.0%
EPS (diluted)
$0.92
$-0.66

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
RIVN
RIVN
Q4 25
$1.8B
$1.3B
Q3 25
$2.7B
$1.6B
Q2 25
$2.2B
$1.3B
Q1 25
$2.1B
$1.2B
Q4 24
$1.9B
$1.7B
Q3 24
$2.2B
$874.0M
Q2 24
$1.7B
$1.2B
Q1 24
$1.8B
$1.2B
Net Profit
AEE
AEE
RIVN
RIVN
Q4 25
$253.0M
$-811.0M
Q3 25
$641.0M
$-1.2B
Q2 25
$277.0M
$-1.1B
Q1 25
$290.0M
$-545.0M
Q4 24
$208.0M
$-744.0M
Q3 24
$457.0M
$-1.1B
Q2 24
$260.0M
$-1.5B
Q1 24
$262.0M
$-1.4B
Gross Margin
AEE
AEE
RIVN
RIVN
Q4 25
9.3%
Q3 25
1.5%
Q2 25
-15.8%
Q1 25
16.6%
Q4 24
9.8%
Q3 24
-44.9%
Q2 24
-38.9%
Q1 24
-43.8%
Operating Margin
AEE
AEE
RIVN
RIVN
Q4 25
20.2%
-64.8%
Q3 25
30.6%
-63.1%
Q2 25
18.5%
-85.5%
Q1 25
20.5%
-52.8%
Q4 24
10.2%
-38.1%
Q3 24
27.0%
-133.8%
Q2 24
21.3%
-118.7%
Q1 24
20.4%
-123.3%
Net Margin
AEE
AEE
RIVN
RIVN
Q4 25
14.2%
-63.1%
Q3 25
23.7%
-75.3%
Q2 25
12.5%
-85.7%
Q1 25
13.8%
-44.0%
Q4 24
10.7%
-42.9%
Q3 24
21.0%
-125.9%
Q2 24
15.4%
-125.8%
Q1 24
14.4%
-120.1%
EPS (diluted)
AEE
AEE
RIVN
RIVN
Q4 25
$0.92
$-0.66
Q3 25
$2.35
$-0.96
Q2 25
$1.01
$-0.97
Q1 25
$1.07
$-0.48
Q4 24
$0.77
$-0.67
Q3 24
$1.70
$-1.08
Q2 24
$0.97
$-1.46
Q1 24
$0.98
$-1.48

Balance Sheet & Financial Strength

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

Metric
AEE
AEE
RIVN
RIVN
Cash + ST InvestmentsLiquidity on hand
$13.0M
$6.1B
Total DebtLower is stronger
$19.4B
Stockholders' EquityBook value
$13.4B
$4.6B
Total Assets
$48.5B
$14.9B
Debt / EquityLower = less leverage
1.45×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEE
AEE
RIVN
RIVN
Q4 25
$13.0M
$6.1B
Q3 25
$9.0M
$7.1B
Q2 25
$11.0M
$7.5B
Q1 25
$23.0M
$7.2B
Q4 24
$7.0M
$7.7B
Q3 24
$17.0M
$6.7B
Q2 24
$19.0M
$7.9B
Q1 24
$85.0M
$7.9B
Total Debt
AEE
AEE
RIVN
RIVN
Q4 25
$19.4B
Q3 25
Q2 25
Q1 25
Q4 24
$17.8B
Q3 24
Q2 24
$5.5B
Q1 24
$4.4B
Stockholders' Equity
AEE
AEE
RIVN
RIVN
Q4 25
$13.4B
$4.6B
Q3 25
$12.8B
$5.1B
Q2 25
$12.3B
$6.1B
Q1 25
$12.2B
$6.2B
Q4 24
$12.1B
$6.6B
Q3 24
$11.8B
$5.9B
Q2 24
$11.5B
$6.8B
Q1 24
$11.4B
$8.1B
Total Assets
AEE
AEE
RIVN
RIVN
Q4 25
$48.5B
$14.9B
Q3 25
$47.4B
$15.2B
Q2 25
$46.6B
$15.6B
Q1 25
$45.7B
$15.5B
Q4 24
$44.6B
$15.4B
Q3 24
$43.3B
$14.3B
Q2 24
$42.3B
$15.4B
Q1 24
$41.3B
$15.7B
Debt / Equity
AEE
AEE
RIVN
RIVN
Q4 25
1.45×
Q3 25
Q2 25
Q1 25
Q4 24
1.47×
Q3 24
Q2 24
0.81×
Q1 24
0.55×

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
RIVN
RIVN
Operating Cash FlowLast quarter
$956.0M
$-681.0M
Free Cash FlowOCF − Capex
$-54.0M
$-1.1B
FCF MarginFCF / Revenue
-3.0%
-89.0%
Capex IntensityCapex / Revenue
56.7%
36.0%
Cash ConversionOCF / Net Profit
3.78×
TTM Free Cash FlowTrailing 4 quarters
$-775.0M
$-2.5B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEE
AEE
RIVN
RIVN
Q4 25
$956.0M
$-681.0M
Q3 25
$1.1B
$26.0M
Q2 25
$862.0M
$64.0M
Q1 25
$431.0M
$-188.0M
Q4 24
$817.0M
$1.2B
Q3 24
$897.0M
$-876.0M
Q2 24
$557.0M
$-754.0M
Q1 24
$492.0M
$-1.3B
Free Cash Flow
AEE
AEE
RIVN
RIVN
Q4 25
$-54.0M
$-1.1B
Q3 25
$116.0M
$-421.0M
Q2 25
$-204.0M
$-398.0M
Q1 25
$-633.0M
$-526.0M
Q4 24
$-473.0M
$856.0M
Q3 24
$-240.0M
$-1.2B
Q2 24
$-445.0M
$-1.0B
Q1 24
$-398.0M
$-1.5B
FCF Margin
AEE
AEE
RIVN
RIVN
Q4 25
-3.0%
-89.0%
Q3 25
4.3%
-27.0%
Q2 25
-9.2%
-30.5%
Q1 25
-30.2%
-42.4%
Q4 24
-24.4%
49.4%
Q3 24
-11.0%
-131.9%
Q2 24
-26.3%
-89.6%
Q1 24
-21.9%
-126.5%
Capex Intensity
AEE
AEE
RIVN
RIVN
Q4 25
56.7%
36.0%
Q3 25
36.6%
28.7%
Q2 25
48.0%
35.5%
Q1 25
50.7%
27.3%
Q4 24
66.5%
18.9%
Q3 24
52.3%
31.7%
Q2 24
59.2%
24.4%
Q1 24
49.0%
21.1%
Cash Conversion
AEE
AEE
RIVN
RIVN
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.

RIVN
RIVN

Automotive Segment$839.0M65%
Software And Services Segment$447.0M35%
Regulatory Credits$30.0M2%

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