Aon plc (AON) Earnings History
Annual and quarterly earnings data from 1990 to 2025
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AON EPS Growth (CAGR)
Compound annual growth rate of diluted earnings per share
CAGR (Compound Annual Growth Rate) shows the annualized growth rate of EPS over the specified period. A higher CAGR indicates stronger earnings momentum.
AON Profitability Analysis
Margin trends over time
| Year | Gross Margin | Operating Margin | Net Margin |
|---|---|---|---|
| 2025 | 47.7% | 25.3% | 21.5% |
| 2024 | 47.2% | 24.4% | 16.9% |
| 2023 | 48.4% | 28.3% | 19.2% |
| 2022 | 48.1% | 29.4% | 20.7% |
| 2021 | 44.7% | 17.1% | 10.3% |
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Aon plc (AON) Earnings Overview
As of May 8, 2026, Aon plc (AON) reported trailing twelve-month net income of $3.94B, reflecting +36.3% year-over-year growth. The company earned $18.30 per diluted share over the past four quarters, with a net profit margin of 21.5%.
Looking at the long-term picture, AON's 5-year EPS compound annual growth rate (CAGR) stands at +15.0%, indicating exceptional earnings growth. The company achieved its highest annual net income of $3.69B in fiscal 2025, representing a new all-time high.
Aon plc maintains industry-leading profitability with a gross margin of 47.7%, operating margin of 25.3%, and net margin of 21.5%. This margin structure demonstrates strong pricing power and operational efficiency. View revenue history →
Compared to peers including MMC ($4.13B net income, 16.6% margin), WTW ($1.67B net income, 16.5% margin), AJG ($1.49B net income, 10.7% margin), AON has outperformed on profitability metrics. Compare AON vs MMC →
AON Earnings vs Peers
Earnings metrics vs comparable public companies
AON Historical Earnings Data (1990–2025)
36 years| Fiscal Year | Net Income | YoY % | Operating Income | EPS (Diluted) | Net Margin | Op. Margin |
|---|---|---|---|---|---|---|
| 2025 | $3.69B | +39.2% | $4.34B | $17.02 | 21.5% | 25.3% |
| 2024 | $2.65B | +3.5% | $3.83B | $12.49 | 16.9% | 24.4% |
| 2023 | $2.56B | -1.0% | $3.79B | $12.51 | 19.2% | 28.3% |
| 2022 | $2.59B | +106.3% | $3.67B | $12.14 | 20.7% | 29.4% |
| 2021 | $1.25B | -36.3% | $2.09B | $5.55 | 10.3% | 17.1% |
| 2020 | $1.97B | +28.5% | $2.78B | $8.45 | 17.8% | 25.1% |
| 2019 | $1.53B | +35.1% | $2.17B | $6.37 | 13.9% | 19.7% |
| 2018 | $1.13B | -7.5% | $1.54B | $4.59 | 10.5% | 14.3% |
| 2017 | $1.23B | -12.2% | $1.06B | $4.70 | 12.3% | 10.7% |
| 2016 | $1.40B | +0.8% | $1.81B | $5.16 | 14.8% | 19.2% |
Full AON Stock Analysis
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Start ComparisonAON — Frequently Asked Questions
Quick answers to the most common questions about buying AON stock.
Is AON growing earnings?
AON EPS is $18.30, with earnings growth accelerating to +36.3%. This exceeds the 5-year CAGR of +15.0%. TTM net income reached $3.9B.
What are AON's profit margins?
Aon plc net margin is +21.5%, with operating margin at +25.3%. Above-average margins indicate pricing power.
How consistent are AON's earnings?
AON earnings data spans 1990-2025. The accelerating earnings trend is +36.3% YoY. Historical data enables comparison across business cycles.