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Side-by-side financial comparison of AUTONATION, INC. (AN) and Aon plc (AON). Click either name above to swap in a different company.

AUTONATION, INC. is the larger business by last-quarter revenue ($6.9B vs $4.3B, roughly 1.6× Aon plc). Aon plc runs the higher net margin — 39.4% vs 2.5%, a 36.9% gap on every dollar of revenue. On growth, Aon plc posted the faster year-over-year revenue change (3.7% vs -3.9%). Aon plc produced more free cash flow last quarter ($1.3B vs $64.2M). Over the past eight quarters, AUTONATION, INC.'s revenue compounded faster (3.4% CAGR vs 2.8%).

AutoNation, Inc. is an American automotive retailer based in Fort Lauderdale, Florida, which provides new and pre-owned vehicles and associated services in the United States. The company was founded by Wayne Huizenga in 1996, starting with twelve AutoNation locations, and now has more than 300 retail outlets.

Aon plc is a British-American professional services firm. The company operates two divisions: Risk Capital, which provides brokerage and consulting services for risk management and insurance and reinsurance, and Human Capital, which provides services for health insurance, retirement plans, pension plans, and talent advisory.

AN vs AON — Head-to-Head

Bigger by revenue
AN
AN
1.6× larger
AN
$6.9B
$4.3B
AON
Growing faster (revenue YoY)
AON
AON
+7.6% gap
AON
3.7%
-3.9%
AN
Higher net margin
AON
AON
36.9% more per $
AON
39.4%
2.5%
AN
More free cash flow
AON
AON
$1.3B more FCF
AON
$1.3B
$64.2M
AN
Faster 2-yr revenue CAGR
AN
AN
Annualised
AN
3.4%
2.8%
AON

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AN
AN
AON
AON
Revenue
$6.9B
$4.3B
Net Profit
$172.1M
$1.7B
Gross Margin
17.5%
Operating Margin
4.5%
28.1%
Net Margin
2.5%
39.4%
Revenue YoY
-3.9%
3.7%
Net Profit YoY
-7.5%
136.5%
EPS (diluted)
$4.68
$7.82

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
AN
AN
AON
AON
Q4 25
$6.9B
$4.3B
Q3 25
$7.0B
$4.0B
Q2 25
$7.0B
$4.2B
Q1 25
$6.7B
$4.7B
Q4 24
$7.2B
$4.1B
Q3 24
$6.6B
$3.7B
Q2 24
$6.5B
$3.8B
Q1 24
$6.5B
$4.1B
Net Profit
AN
AN
AON
AON
Q4 25
$172.1M
$1.7B
Q3 25
$215.1M
$458.0M
Q2 25
$86.4M
$579.0M
Q1 25
$175.5M
$965.0M
Q4 24
$186.1M
$716.0M
Q3 24
$185.8M
$343.0M
Q2 24
$130.2M
$524.0M
Q1 24
$190.1M
$1.1B
Gross Margin
AN
AN
AON
AON
Q4 25
17.5%
Q3 25
17.6%
Q2 25
18.3%
Q1 25
18.2%
Q4 24
17.2%
Q3 24
18.0%
Q2 24
17.9%
Q1 24
18.5%
Operating Margin
AN
AN
AON
AON
Q4 25
4.5%
28.1%
Q3 25
5.3%
20.4%
Q2 25
3.1%
20.7%
Q1 25
5.0%
30.9%
Q4 24
4.7%
26.3%
Q3 24
5.3%
16.7%
Q2 24
4.2%
17.4%
Q1 24
5.2%
36.0%
Net Margin
AN
AN
AON
AON
Q4 25
2.5%
39.4%
Q3 25
3.1%
11.5%
Q2 25
1.2%
13.9%
Q1 25
2.6%
20.4%
Q4 24
2.6%
17.3%
Q3 24
2.8%
9.2%
Q2 24
2.0%
13.9%
Q1 24
2.9%
26.3%
EPS (diluted)
AN
AN
AON
AON
Q4 25
$4.68
$7.82
Q3 25
$5.65
$2.11
Q2 25
$2.26
$2.66
Q1 25
$4.45
$4.43
Q4 24
$4.62
$3.11
Q3 24
$4.61
$1.57
Q2 24
$3.20
$2.46
Q1 24
$4.49
$5.35

Balance Sheet & Financial Strength

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

Metric
AN
AN
AON
AON
Cash + ST InvestmentsLiquidity on hand
$58.6M
$2.8B
Total DebtLower is stronger
$3.7B
$15.2B
Stockholders' EquityBook value
$2.3B
$9.4B
Total Assets
$14.4B
$50.8B
Debt / EquityLower = less leverage
1.58×
1.63×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AN
AN
AON
AON
Q4 25
$58.6M
$2.8B
Q3 25
$97.6M
$1.3B
Q2 25
$62.9M
$1.4B
Q1 25
$70.5M
$1.3B
Q4 24
$59.8M
$1.3B
Q3 24
$60.2M
$1.3B
Q2 24
$85.9M
$1.2B
Q1 24
$60.3M
$6.4B
Total Debt
AN
AN
AON
AON
Q4 25
$3.7B
$15.2B
Q3 25
Q2 25
Q1 25
$3.1B
Q4 24
$2.6B
$17.0B
Q3 24
$3.1B
Q2 24
$3.1B
Q1 24
$3.1B
Stockholders' Equity
AN
AN
AON
AON
Q4 25
$2.3B
$9.4B
Q3 25
$2.5B
$7.9B
Q2 25
$2.5B
$7.8B
Q1 25
$2.4B
$7.0B
Q4 24
$2.5B
$6.1B
Q3 24
$2.4B
$6.2B
Q2 24
$2.2B
$5.9B
Q1 24
$2.4B
$-133.0M
Total Assets
AN
AN
AON
AON
Q4 25
$14.4B
$50.8B
Q3 25
$14.2B
$51.6B
Q2 25
$13.6B
$54.0B
Q1 25
$13.3B
$50.3B
Q4 24
$13.0B
$49.0B
Q3 24
$12.9B
$49.9B
Q2 24
$12.8B
$51.5B
Q1 24
$12.0B
$40.8B
Debt / Equity
AN
AN
AON
AON
Q4 25
1.58×
1.63×
Q3 25
Q2 25
Q1 25
1.29×
Q4 24
1.06×
2.78×
Q3 24
1.32×
Q2 24
1.43×
Q1 24
1.32×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AN
AN
AON
AON
Operating Cash FlowLast quarter
$150.5M
$1.4B
Free Cash FlowOCF − Capex
$64.2M
$1.3B
FCF MarginFCF / Revenue
0.9%
30.8%
Capex IntensityCapex / Revenue
1.2%
1.7%
Cash ConversionOCF / Net Profit
0.87×
0.83×
TTM Free Cash FlowTrailing 4 quarters
$-197.5M
$3.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AN
AN
AON
AON
Q4 25
$150.5M
$1.4B
Q3 25
$191.7M
$1.1B
Q2 25
$-177.8M
$796.0M
Q1 25
$-52.5M
$140.0M
Q4 24
$149.8M
$1.2B
Q3 24
$-70.0M
$1.0B
Q2 24
$-59.6M
$513.0M
Q1 24
$294.5M
$309.0M
Free Cash Flow
AN
AN
AON
AON
Q4 25
$64.2M
$1.3B
Q3 25
$122.8M
$1.1B
Q2 25
$-256.8M
$732.0M
Q1 25
$-127.7M
$84.0M
Q4 24
$83.5M
$1.1B
Q3 24
$-151.0M
$951.0M
Q2 24
$-147.1M
$460.0M
Q1 24
$200.8M
$261.0M
FCF Margin
AN
AN
AON
AON
Q4 25
0.9%
30.8%
Q3 25
1.7%
27.0%
Q2 25
-3.7%
17.6%
Q1 25
-1.9%
1.8%
Q4 24
1.2%
27.6%
Q3 24
-2.3%
25.6%
Q2 24
-2.3%
12.2%
Q1 24
3.1%
6.4%
Capex Intensity
AN
AN
AON
AON
Q4 25
1.2%
1.7%
Q3 25
1.0%
1.7%
Q2 25
1.1%
1.5%
Q1 25
1.1%
1.2%
Q4 24
0.9%
1.3%
Q3 24
1.2%
1.7%
Q2 24
1.4%
1.4%
Q1 24
1.4%
1.2%
Cash Conversion
AN
AN
AON
AON
Q4 25
0.87×
0.83×
Q3 25
0.89×
2.51×
Q2 25
-2.06×
1.37×
Q1 25
-0.30×
0.15×
Q4 24
0.80×
1.68×
Q3 24
-0.38×
2.95×
Q2 24
-0.46×
0.98×
Q1 24
1.55×
0.29×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AN
AN

New Vehicle$3.4B50%
Transferred At Point In Time$1.7B24%
Parts And Service$1.2B18%
Finance And Insurance Net$369.4M5%
Transferred Over Time$221.4M3%
Other$3.5M0%

AON
AON

Commercial Risk Solutions$2.3B54%
Health Solutions$1.1B26%
Wealth Solutions$490.0M11%
Reinsurance Solutions$379.0M9%

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